Author Topic: Captain Badass' JD40 Build Log  (Read 25098 times)

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Offline CPTBadAss

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Captain Badass' JD40 Build Log
« on: Thu, 06 November 2014, 07:18:07 »
Finished Build Post

There's too many JD40 threads with info everywhere. I'm consolidating the information I'm looking for so that I can better help myself finish the build. I'll post pictures and what not as I go too.

So from this post, I've got the following information:

Assembly

How to solder the Teensy on by Margo and strict:
More
You want to solder the teensy as close to the pcb as you can, basically so the teensy is laying on top of the pcb. Then you can solder through using the pins that came with the teensy, but dont use the plastic spacer, remove the pins from that, or you could use all the diode legs you trimmed from the diodes, or you could use no pins at all - but I wouldn't really recommend this unless you are pretty confident with your iron and have real fluxy solder.

I do pin-less on mine and flux is the key. I actually take a super fine tipped paint brush, put a tiny dab of solder flux on the tip and put a fine coating on the through-holes of both the Teensy and the PCB. Then I insert pins into the 4 corners to act as guides to keep everything aligned and then just fill the through holes with solder until it jumps the gap between the PCBs. It can be kind of hard to judge how much solder is needed to keep from getting ugly blobs bulging out on one side or the other so you will probably end up redoing at least a few of them.

The downside to pin-less is that I think you open yourself up to getting solder bridges between the PCBs a little easier. Also, forget ever trying to desolder the Teensy from the PCB ... the faces of the through-holes tend to solder together and you will never get that separated without destroying at least one of the PCBs.



Build log in pictures by strict:
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Ok so some questions before I ruin build the board.

Diodes: Put them on the top side of the pcb right?

Teensy: Should I leave the black spacers on the pins that came with it, so it is slightly elevated from the pcb?

USB Connector: I got a female mini usb connector for putting on the pcb, pretty straight forward, but I also got the male end of a mini usb, what is that for?

Thanks :)

I created an imgur album when I built mine that should answer pretty much all your questions with pictures  :thumb:

https://imgur.com/a/KEbUW


Build log in pictures by margo baggins



Programming the Firmware/Software

Directions on how to use hasu's firmware by JD:
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This post contains the .hex file

Well I guess I will just wait until the guide is up because I have no clue what I am doing with the teensy.

As for the spacebar wire, I got a wire that has the bends in the middle. That doesn't seem to be the one I need for this board, anyone know a place where I can get a straight spacebar wire? Or just a cheap source of costar spacebar stabilizers?

Costar stabs always have the bend in the middle, to provide clearance for the switch when it moves. Cherry plate mount stabs are the ones that need to be bend-less, so that the wire doesn't bump into the plate every time you press the switch.

To program the Teensy, plug a USB cable from your PC into the Teensy, and press the button on the Teensy. Start the Teensy Loader software, and select the firmware .hex file to flash. Then press the icon to program the Teensy, then press the icon to reboot. Should be good to go after that.

I am attaching the "stock" JD40 firmware to this post.

Directions on using metalliqaz's Easy AVR Firmware and Keymapper by JD:
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Is the Easy AVR USB Keyboard Firmware and Keymapper program good to keymap this keyboard? or do you recommend something else? :)

Yes. The "stock" firmware I provided is compiled using hasu's highly regarded TMK firmware. But metalliqaz' Easy AVR is by far the easiest firmware for the beginner to use in creating a custom layout for the JD40.

Make sure you use the latest beta release


When I use that easy-keymap software the hex files I save don't seem to work. None of the keys function

Are you using the latest beta release?

Ah shoot, I was using the standard release =(

EDIT: Beta version worked perfectly!

JD40 Layout
More



Thanks margo. I needed some clarification on the Teensy and USB plug soldering.

So if I understand correct, I plug the cable into the USB port that I solder opposite of the teensy. What is the port on the Teensy doing? And what is the "plug" doing? Never mind, this makes much more sense in strict's pictures.

Show Image


I tape the plug to the pcb on the right of the socket on the teensy - I do this as it's easier to solder to the fingers on the plug. then when I've soldered all 4 wires, I untape the plug from the pcb, and bend all the wires over and plug it into the teensy. if you line up the plug with those LED holes, the wire is just about the perfect length to be bent back on itself and not have too much there. I dunno if that makes sense :)

It's worth noting - the plug strict uses is different to the one we supply, the one we supply is best done the way I have shown as if you plug it into the teensy, the fingers will be facing down towards the pcb and you will not be able to solder them.




Current progress? I've made what I'm calling Panda Switches. MX White Stems with MX Black Springs. And I've started to place the diodes into the board. I'll post pictures later.
« Last Edit: Mon, 02 February 2015, 22:29:49 by CPTBadAss »

Offline CPTBadAss

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Re: CaptainBadass' JD40 Build Log
« Reply #1 on: Thu, 06 November 2014, 07:30:15 »


Cool this thing rotates.



Ok what the **** CPTBadAss...why was this a good idea? The JD40 plate has cutouts too...



Ok good, now we got it all setup right. Did you know N64 carts are good for other things besides storing video game PCBs?



Cool, yet another use for drawer liner



Potato macro! (Edit: I was informed that this is a macro shot of me installing the diodes backwards :( )
« Last Edit: Thu, 06 November 2014, 08:27:16 by CPTBadAss »

Offline jdcarpe

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Re: CaptainBadass' JD40 Build Log
« Reply #2 on: Thu, 06 November 2014, 08:21:18 »
You have those diodes in backward, sir. :'(
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Offline CPTBadAss

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Re: CaptainBadass' JD40 Build Log
« Reply #3 on: Thu, 06 November 2014, 08:25:48 »
I blame you! The silkscreen is on the wrong side!!

Offline jdcarpe

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Re: CaptainBadass' JD40 Build Log
« Reply #4 on: Thu, 06 November 2014, 08:30:22 »
I blame you! The silkscreen is on the wrong side!!

I blame myself, also. #FAIL
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Offline margo baggins

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Re: CaptainBadass' JD40 Build Log
« Reply #5 on: Thu, 06 November 2014, 08:45:56 »
you cool bastard with your panovise, someone needs to hook me up with some proper tools.

I don't blame either of you. So there :)

What I like is how some people now build custom keyboards and put the diodes on the wrong side as they've seen people do it with the 40's but not read why that's happened. leading to diodes being in the way of stabs, etc. etc. etc.
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Offline CPTBadAss

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Re: CaptainBadass' JD40 Build Log
« Reply #6 on: Thu, 06 November 2014, 08:50:59 »
you cool bastard with your panovise, someone needs to hook me up with some proper tools.

I've long suffered with **** tools so I've been buying nicer stuff lately including that panavise. It's really been making modding boards and other projects a lot more enjoyable.

I don't blame either of you. So there :)

 :-*

What I like is how some people now build custom keyboards and put the diodes on the wrong side as they've seen people do it with the 40's but not read why that's happened. leading to diodes being in the way of stabs, etc. etc. etc.

Haha yeah. I think people tend to forget just how customized each design can be.

Offline margo baggins

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Re: Captain Badass' JD40 Build Log
« Reply #7 on: Thu, 06 November 2014, 08:54:04 »
I love tools. In reality, I have lots of decent tools, I think my girlfriend is more annoyed at my tool collection than my keyboard collection - just no form of vise at all. Panavise are really hard to get here for a decent price, and shipping them is expensive too!

I will suck it up and buy a panavise once christmas is out of the way.
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #8 on: Thu, 06 November 2014, 08:55:33 »
Should be a new thread: Post your tool collection  :))

Anyways, appreciate you posting that imgur album of yours margo. I'm going to keep cranking away at my JD40 tonight :D.

Offline margo baggins

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Re: Captain Badass' JD40 Build Log
« Reply #9 on: Thu, 06 November 2014, 09:51:03 »
Should be a new thread: Post your tool collection  :))

Anyways, appreciate you posting that imgur album of yours margo. I'm going to keep cranking away at my JD40 tonight :D.

Show us more pictures when you have them :) I'm excited to see your keyboard.
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Offline 0100010

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Re: Captain Badass' JD40 Build Log
« Reply #10 on: Thu, 06 November 2014, 10:41:53 »
Should be a new thread: Post your tool collection  :))

Anyways, appreciate you posting that imgur album of yours margo. I'm going to keep cranking away at my JD40 tonight :D.

I can see such a thread showing both extremes. Folks with every nice / appropriate / expensive tool imaginable, and folks that make do / improvise / few tools as possible (like me).
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Offline Joey Quinn

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Re: Captain Badass' JD40 Build Log
« Reply #11 on: Thu, 06 November 2014, 14:24:04 »
Looks great, I have whites on my 40% also. Where did you get the MX lock switch?
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #12 on: Thu, 06 November 2014, 14:25:19 »
Looks great, I have whites on my 40% also. Where did you get the MX lock switch?

I was sent that MX Lock switch as part of Secret Santa last year :D.

Offline Joey Quinn

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Re: Captain Badass' JD40 Build Log
« Reply #13 on: Thu, 06 November 2014, 15:57:06 »
That's a pretty cool gift, I've been looking for one.
People in the 1980s, in general, were clearly just better than we are now in every measurable way.

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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #14 on: Tue, 11 November 2014, 15:59:08 »
Been a rough week so I haven't done much soldering or anything else yet. So here's what I have finished up....stupid JD, putting the silkscreen on the wrong side :P. Just kidding!


Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #15 on: Tue, 11 November 2014, 16:54:09 »
Some of your diodes are still installed backwards. The black band always goes toward the switch, not the matrix.

Sorry about the silkscreen, but I did it to save money on the initial PCB run. Keep in mind, these were never really meant for production, but just a few samples for me. When they started to get sold to others, I reordered the same PCB with the same silkscreen, again to save money, since there is no tooling charge for reorders.
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #16 on: Tue, 11 November 2014, 16:56:55 »
It's no problem JD. Just a joke :). Thanks for the help.

Offline byker

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Re: Captain Badass' JD40 Build Log
« Reply #17 on: Tue, 11 November 2014, 16:59:36 »
Go CPTBadAss! I love how all of the experts are here watching you build this!  :p

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #18 on: Tue, 11 November 2014, 17:07:06 »
Should be good now. Hopefully I can post some real progress soon. Really appreciate the help JD. I'm only teasing and attempting to perpetuate a bad joke :(. And I'm clipping a bunch of stabilizers for another build :).




Offline Coreda

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Re: Captain Badass' JD40 Build Log
« Reply #19 on: Tue, 11 November 2014, 17:17:55 »
I love build logs, more power to you Cpt :D

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Re: Captain Badass' JD40 Build Log
« Reply #20 on: Tue, 11 November 2014, 17:24:57 »
I love build logs, more power to you Cpt :D

Here you go. Do it yourself build logs!


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Re: Captain Badass' JD40 Build Log
« Reply #21 on: Tue, 11 November 2014, 17:33:21 »
Check those 5 diodes in the middle. The ones that are higher than the others in that row.

And the silkscreen issue is a valid one, for this very reason. :)
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Offline Coreda

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Re: Captain Badass' JD40 Build Log
« Reply #22 on: Tue, 11 November 2014, 17:33:32 »
Here you go. Do it yourself build logs!

In a convenient can! Now there's no excuse.

Offline margo baggins

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Re: Captain Badass' JD40 Build Log
« Reply #23 on: Wed, 12 November 2014, 06:50:04 »
If the silkscreen was on the right side of the pcb we wouldn't have a peeping JD on all JD40's...

some of you got your priorities all out of whack.
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #24 on: Wed, 12 November 2014, 06:51:32 »
If the silkscreen was on the right side of the pcb we wouldn't have a peeping JD on all JD40's...

JD I'M SORRY I BUGGED YOU ABOUT THE SILKSCREENING. I RETRACT ALL COMPLAINTS.

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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #25 on: Sat, 15 November 2014, 15:05:45 »
Learned a lot today trying to solder the diodes in:

1) Solder does expire, and when it does, it doesn't flow like it should...even with flux. I've had some solder for about a year but I suspect it sat around in some Amazon warehouse for another year. Kester says their solder has 2-3 years shelf life. That batch of solder is now unusable to me.

2) Make sure you solder on the right side. The pads on one side will be larger and take heat better. On the JD40, that means you solder the diodes on the side on the silkscreen. Even though the diodes have to be inserted on the non-silkscreen side. Look:



(Yes I know I lifted a pad :( )

If you try to solder on the non-silkscreen side or where the pads are smaller, the heat won't flow correctly and you won't be able to solder easily. I burned the the hell outta my PCB before I realized that.



I think because I lifted a pad, I have to jump from S01:1 lower left switch leg hole to S02:1 lower left leg switch leg hole. Holes are outlined in thin red boxes. Can someone confirm this for me?

I lifted a diode pad, not a switch pad. I just need to run a jumper to the switch leg from the diode. Thanks to JD for pointing that out to me.



3) Over the course of the thread, I learned is that the diode black band faces the switch leg holes.

4) Take care of your soldering tools and replace the tip when you need to. My tip was long overdue for a change.

It took me a long time to figure these things out...more than I care to admit. But I'm glad I did learn them. I seem to only ever learn things the hard way anyways.

So today's work so far:



I checked the continuity with a multimeter and it seemed to check out. So hopefully even though it's ugly, it'll work; which is all I want.

Special thanks to jdcarpe who answered *A LOT* of my questions today and obviously throughout the thread. And to HoffmanMyster for sending me a replacement tip real quick so I could work on the build over the weekend.




PS - Some more progress today:






PPS - Question about the Teensy. My plug doesn't look like the one strict has. My teensy and USB plug look like:



The pins on the plug look like:



Can someone tell me which pins correspond with which holes on the PCB?



So for example, does Pin 1 go into P1 "VCC"?
« Last Edit: Sat, 15 November 2014, 16:07:04 by CPTBadAss »

Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #26 on: Sat, 15 November 2014, 16:30:15 »
Okay, so if you lay the USB connector down as margo suggests, and solder the wires like that, you will be soldering like this:

Code: [Select]
P5=========|---
           |-----
P3=========|---
P2=========|-----
P1=========|---
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Offline tjcaustin

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Re: Captain Badass' JD40 Build Log
« Reply #27 on: Sat, 15 November 2014, 17:44:46 »


This should look:

     4  2
   5  3  1

where pinouts are (ignore pin four or pull the pin entirely out with a pair of pliers):

1 - VCC
2 - Data-
3 - Data+
5 - Ground

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #28 on: Sat, 15 November 2014, 19:28:33 »
Thank you guys! Appreciate the help. :D

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Re: Captain Badass' JD40 Build Log
« Reply #29 on: Sat, 15 November 2014, 20:47:44 »
Are you going with a stock layout or something different?
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #30 on: Sat, 15 November 2014, 20:49:57 »
Are you going with a stock layout or something different?
I'm not sure yet. Maybe setup a layout based on my Kishsaver's layout.

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Re: Captain Badass' JD40 Build Log
« Reply #31 on: Sat, 15 November 2014, 21:07:18 »
2) Make sure you solder on the right side. The pads on one side will be larger and take heat better. On the JD40, that means you solder the diodes on the side on the silkscreen. Even though the diodes have to be inserted on the non-silkscreen side. Look:


For what it's worth, when I solder my diodes on the "opposite" side of the plate (so they aren't between the pcb and the plate.) I put the solder on the same side as the diode so that if I ever need to replace on it's pretty easy.

I don't find it to be any more difficult in soldering and it makes repair work significantly easier.

Just an alternative.

Offline HoffmanMyster

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Re: Captain Badass' JD40 Build Log
« Reply #32 on: Sat, 15 November 2014, 22:53:08 »

2) Make sure you solder on the right side. The pads on one side will be larger and take heat better. On the JD40, that means you solder the diodes on the side on the silkscreen. Even though the diodes have to be inserted on the non-silkscreen side. Look:


For what it's worth, when I solder my diodes on the "opposite" side of the plate (so they aren't between the pcb and the plate.) I put the solder on the same side as the diode so that if I ever need to replace on it's pretty easy.

I don't find it to be any more difficult in soldering and it makes repair work significantly easier.

Just an alternative.

That doesn't work on this board due to a lack of pad on the back side. His learning in this case was specific to assembling the JD40, and was how the "instructions" (from JD) suggest doing it. In general I'd agree with you though.

Also, glad to see such progress, Captain. Looks like a productive day, and I'm happy you were able to work this weekend!   :)

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #33 on: Sat, 15 November 2014, 23:21:41 »
Yup, that #2 was more geared towards this build because of the pad sizes

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Re: Captain Badass' JD40 Build Log
« Reply #34 on: Sun, 16 November 2014, 00:06:20 »
That doesn't work on this board due to a lack of pad on the back side.

More

Oh my gosh you're right! I'm very sorry to have missed that. Thanks for the good advice, CPT!

I'll be making one of these soon so IDK why I looked up an image online instead of getting up from my chair and opening the box with one inside.

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #35 on: Mon, 17 November 2014, 21:56:22 »
Welp....I'm sure you all already know, but I'm officially a moron. I accidentally soldered the teensy to the wrong side and I couldn't get it off. Gotta wait for a new PCB to come in so I can try and finish it then.

* CPTBadAss writes on the chalkboard 5000 times

I am stupid and solder all the components but the switches to the non-silk screened side.
I am stupid and solder all the components but the switches to the non-silk screened side.
I am stupid and solder all the components but the switches to the non-silk screened side.
I am stupid and solder all the components but the switches to the non-silk screened side.
I am stupid and solder all the components but the switches to the non-silk screened side.



DON'T SOLDER THE TEENSY ON THE SILKSCREENED SIDE SELF :(

Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #36 on: Mon, 17 November 2014, 22:02:08 »
^

Don't feel bad. You're not the first. The first would be me (although it was just a few pins, so I was able to remove it).
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Offline SlotH42

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Re: Captain Badass' JD40 Build Log
« Reply #37 on: Mon, 17 November 2014, 22:02:59 »
MP-GBL4 (red) Poker II (clears) Realforce R2TL 55g

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Re: Captain Badass' JD40 Build Log
« Reply #38 on: Mon, 17 November 2014, 22:03:29 »
Welp....I'm sure you all already know, but I'm officially a moron. I accidentally soldered the teensy to the wrong side and I couldn't get it off. Gotta wait for a new PCB to come in so I can try and finish it then.

At least you picked up a soldering iron.

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #39 on: Mon, 17 November 2014, 22:08:27 »
So just in case anyone is reading this and wants to know why the teensy can't go on that side? The little USB port on the Teensy will cause the plate to not sit flush against the switch bottoms. So you won't be able to get the switches to sit properly.

Also? Thanks for the support and kind words. I'm going to keep self-flagellating...and chalk it up as valuable learning experience in terms of general PCB knowledge and teensy soldering.

Offline HoffmanMyster

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Re: Captain Badass' JD40 Build Log
« Reply #40 on: Mon, 17 November 2014, 22:16:18 »
It wouldn't be a CBA build if it weren't botched.

...that's mean.   :-[ :(

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 :-*  Love you, BadAss.  I have faith that you will make this right.  :)

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #41 on: Mon, 17 November 2014, 22:20:03 »
It wouldn't be a CBA build if it weren't botched.

Dude....right? I've had one smooth build and the board wasn't for me!

Offline dorkvader

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Re: Captain Badass' JD40 Build Log
« Reply #42 on: Mon, 17 November 2014, 23:46:34 »
Welp....I'm sure you all already know, but I'm officially a moron. I accidentally soldered the teensy to the wrong side and I couldn't get it off. Gotta wait for a new PCB to come in so I can try and finish it then.

PCB is still salvageable.

You can cut through all the teensy pins with a sidecutter. it's brutal but it works. Then just remove them. Alternatively just cut up the teensy.

You have a vise, you could get a hacksaw and saw through the teensy pins.

I'm just sayin' those PCBs are nice. it'd be a shame to abandon it now.

Offline Melvang

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Re: Captain Badass' JD40 Build Log
« Reply #43 on: Mon, 17 November 2014, 23:47:49 »
Welp....I'm sure you all already know, but I'm officially a moron. I accidentally soldered the teensy to the wrong side and I couldn't get it off. Gotta wait for a new PCB to come in so I can try and finish it then.

PCB is still salvageable.

You can cut through all the teensy pins with a sidecutter. it's brutal but it works. Then just remove them. Alternatively just cut up the teensy.

You have a vise, you could get a hacksaw and saw through the teensy pins.

I'm just sayin' those PCBs are nice. it'd be a shame to abandon it now.

Looks to me like there are no pins.  Just sat the teensy right on the 40 PCB and filled the holes in with solder.
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Offline dorkvader

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Re: Captain Badass' JD40 Build Log
« Reply #44 on: Tue, 18 November 2014, 00:11:13 »
Welp....I'm sure you all already know, but I'm officially a moron. I accidentally soldered the teensy to the wrong side and I couldn't get it off. Gotta wait for a new PCB to come in so I can try and finish it then.

PCB is still salvageable.

You can cut through all the teensy pins with a sidecutter. it's brutal but it works. Then just remove them. Alternatively just cut up the teensy.

You have a vise, you could get a hacksaw and saw through the teensy pins.

I'm just sayin' those PCBs are nice. it'd be a shame to abandon it now.

Looks to me like there are no pins.  Just sat the teensy right on the 40 PCB and filled the holes in with solder.

It would depend on how he installed it. I would have used clipped diode leads I think.

Anyway, mail that sucker to me CPT and I'll desolder your teensy!. That PCB is salvageable!

Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #45 on: Tue, 18 November 2014, 14:13:59 »
So, I DO NOT RECOMMEND soldering the teensy on without pins. It bit me in the ass once. Unreliable connection to the pads on the teensy caused one build to work fine when I sent it out, but when the keyboard was received, certain columns/rows were intermittent at best. Just go ahead and use pins when soldering the teensy to the PCB, even in a low profile setup. Just remember to remove the plastic spacer from the header pins before you mount it to the PCB. I usually clip all the legs with end nippers, then use a file to make them even.

Also, if you want to make another attempt to remove the teensy, I recommend starting at one corner, adding heat to the pads in that area, and gently prying the teensy away from the PCB at that corner. Then just move further away with the heat, continuing to gently pry the teensy away from the PCB.
« Last Edit: Tue, 18 November 2014, 14:17:34 by jdcarpe »
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #46 on: Tue, 18 November 2014, 14:17:32 »
PCB is still salvageable.

You can cut through all the teensy pins with a sidecutter. it's brutal but it works. Then just remove them. Alternatively just cut up the teensy.

You have a vise, you could get a hacksaw and saw through the teensy pins.

I'm just sayin' those PCBs are nice. it'd be a shame to abandon it now.

I soldered it pinless per margo baggin's suggestion. Only put pins in the corners. I couldn't get the Teensy off the PCB.

Also, if you want to make another attempt to remove the teensy, I recommend starting at one corner, adding heat to the pads in that area, and gently prying the teensy away from the PCB at that corner. Then just move further away with the heat, continuing to gently pry the teensy away from the PCB.

Tried that last night. Didn't work. Spent 40 minutes trying to do that with nothing to show. :(.

Offline dorkvader

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Re: Captain Badass' JD40 Build Log
« Reply #47 on: Tue, 18 November 2014, 18:44:36 »
PCB is still salvageable.

You can cut through all the teensy pins with a sidecutter. it's brutal but it works. Then just remove them. Alternatively just cut up the teensy.

You have a vise, you could get a hacksaw and saw through the teensy pins.

I'm just sayin' those PCBs are nice. it'd be a shame to abandon it now.

I soldered it pinless per margo baggin's suggestion. Only put pins in the corners. I couldn't get the Teensy off the PCB.

Also, if you want to make another attempt to remove the teensy, I recommend starting at one corner, adding heat to the pads in that area, and gently prying the teensy away from the PCB at that corner. Then just move further away with the heat, continuing to gently pry the teensy away from the PCB.

Tried that last night. Didn't work. Spent 40 minutes trying to do that with nothing to show. :(.
You can borrow my hakko 808 before I sell it. Should get the solder right out of those holes.

Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #48 on: Tue, 18 November 2014, 19:23:58 »
Need some Chip Quik. :)
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #49 on: Wed, 10 December 2014, 07:23:35 »
You can borrow my hakko 808 before I sell it. Should get the solder right out of those holes.

Part of the 40 minutes of trying to separate the Teensy from the PCB was using my Hakko 808. Trust me, I've tried everything at my disposal. Luckily, I have a new PCB so I'll be getting back to this soon.

Offline dintmeister

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Re: Captain Badass' JD40 Build Log
« Reply #50 on: Tue, 27 January 2015, 23:57:34 »
Hey, custom keyboard newbie here!

I just ordered myself a JD40 basic kit, in an effort to fend off cabin fever with a new project. I've done some other soldering projects before, but this is my first custom keyboard build. I think I've got everything that I need (diodes, teensy, mx reds, caps, stabs, usb socket) other than the usb plug that plugs into the teensy and is soldered to the board.

Where could I find such a plug? I'm getting my diodes and socket from mouser, and if I could order one from there I'd be thrilled. Also, what kind of wire would you guys recommend for connecting the plug to the pcb? I have a radioshack nearby, and I plan to pick up soldering supplies there anyway. It'd be easy to get the wire there as well.

Thanks in advance for the help, and for all the great build logs. Can't wait to get started on my own!

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #51 on: Thu, 29 January 2015, 06:43:19 »
1) Where could I find such a plug? I'm getting my diodes and socket from mouser, and if I could order one from there I'd be thrilled.
2) Also, what kind of wire would you guys recommend for connecting the plug to the pcb?

1) It's called a mini USB B port but I currently can't find the proper part number on Mouser. You can definitely grab it from there.

2) I use 24 AWG wire hookup wire usually. But this time I just took an old USB cable and used some wires out of that.

Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #52 on: Thu, 29 January 2015, 12:12:26 »
I think this is what he means?

http://www.amazon.com/dp/B00E1JMK0O

Or you can always use the end of a USB Mini B cable
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Offline suicidal_orange

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Re: Captain Badass' JD40 Build Log
« Reply #53 on: Sat, 31 January 2015, 18:17:22 »
They are on Mouser but it won't let me off the UK version.  Can you find any of these part numbers?

798-UX40-MB-5P
798-UX40A-MB-5P
798-UX20-MB-5P
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Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #54 on: Sat, 31 January 2015, 18:49:35 »
I think this is what he means?

http://www.amazon.com/dp/B00E1JMK0O

Or you can always use the end of a USB Mini B cable

They are on Mouser but it won't let me off the UK version.  Can you find any of these part numbers?

798-UX40-MB-5P
798-UX40A-MB-5P
798-UX20-MB-5P

Now I'm confused. Are we looking for the plug for the teensy or the other plug that jd showed? Because none of those look like the two plugs I have.



Offline suicidal_orange

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Re: Captain Badass' JD40 Build Log
« Reply #55 on: Sat, 31 January 2015, 19:04:02 »
I think this is what he means?

http://www.amazon.com/dp/B00E1JMK0O

Or you can always use the end of a USB Mini B cable

They are on Mouser but it won't let me off the UK version.  Can you find any of these part numbers?

798-UX40-MB-5P
798-UX40A-MB-5P
798-UX20-MB-5P

Now I'm confused. Are we looking for the plug for the teensy or the other plug that jd showed? Because none of those look like the two plugs I have.

Show Image


He mentioned wires so I (and JD) thought he was looking for the plug from Teensy to PCB, rightly or not.
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Offline neverused

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Re: Captain Badass' JD40 Build Log
« Reply #56 on: Sat, 31 January 2015, 19:45:41 »
I think those link to male connectors, whereas your image is of the female end.

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Re: Captain Badass' JD40 Build Log
« Reply #57 on: Sat, 31 January 2015, 19:54:22 »


Back to business. It was a PITA to solder in clipped legs last time so I'm trying something new. Going this keeps the diodes in place so I can clip and solder them into the PCB.

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #58 on: Sat, 31 January 2015, 21:53:27 »


I finally learned my lesson!



Starting to look real good...



Need to put some caps on this to figure out a layout. This board needs more arrows though.
« Last Edit: Sat, 31 January 2015, 22:50:43 by CPTBadAss »

Offline joey

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Re: Captain Badass' JD40 Build Log
« Reply #59 on: Sun, 01 February 2015, 02:32:22 »
Looks nice! Is it all working correctly?

Is that right arrow key too small?

Does anyone have high quality images of an unpopulated JD40 PCB?
« Last Edit: Sun, 01 February 2015, 02:34:46 by joey »

Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #60 on: Sun, 01 February 2015, 04:52:27 »

Nice job, brother! Looking good. :thumb:


Does anyone have high quality images of an unpopulated JD40 PCB?

Somewhat of an odd request. Why do you ask?

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Offline joey

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Re: Captain Badass' JD40 Build Log
« Reply #61 on: Sun, 01 February 2015, 04:56:44 »
Does anyone have high quality images of an unpopulated JD40 PCB?

Somewhat of an odd request. Why do you ask?
I'm just interested at looking at the traces on the PCB.

I only looked on my phone, when I get to my computer I'll take a look and the pictures so far might be good enough!

Offline suicidal_orange

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Re: Captain Badass' JD40 Build Log
« Reply #62 on: Sun, 01 February 2015, 07:04:00 »
Starting to look real good...

Show Image


Need to put some caps on this to figure out a layout. This board needs more arrows though.

Very colourful, I like it

I'm wondering where to source strange keys though, like your 1.25 arrow and my 1.25 full stop.  Can't think of any place these would have been used, but it will be hard to learn the layout on blanks...

I'm just interested at looking at the traces on the PCB.

I only looked on my phone, when I get to my computer I'll take a look and the pictures so far might be good enough!
There aren't many traces under the diodes so there's not much point finding an unpopulated pic, there aren't enough interruptions to lose track of anything.

The traces show each row linked directly on the pins furthest from the switch centre hole, and the diodes with the stripe ends connected to the other switch pin and the non-stripe ends connected in columns according to the label (S03:1 is row 3 column 1) and only the LED to S03:1 is connected.  The USB runs data and power pretty much diagonally to the holes near the Teensy with ground being the rest of the board.

It's just a switch matrix so nothing complicated, though I still wouldn't like to design a PCB for one.
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Offline infiniti

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Re: Captain Badass' JD40 Build Log
« Reply #63 on: Sun, 01 February 2015, 07:58:58 »
Congrats on completing your JD40!  Looks good! :thumb:

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #64 on: Sun, 01 February 2015, 08:02:16 »
It's not done yet! Very close. I misunderstood how to load the firmware. I realized at like 0100 that I didn't think about a layout and it was hard for me to understand one without the caps on. Here's the other side.



I just have to upload the firmware. I didn't realize I was supposed to use the beta version of Metalliqaz's Easy AR Loader and Teensy Loader from PJRC.com instead of Flip.
« Last Edit: Sun, 01 February 2015, 08:06:16 by CPTBadAss »

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Re: Captain Badass' JD40 Build Log
« Reply #65 on: Sun, 01 February 2015, 09:31:17 »
Close enough!  At least it's all assembled already.

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #66 on: Mon, 02 February 2015, 22:28:27 »



Ah yes. This board finally works. I'm typing out this post with the JD40. Now for the fun task of trying to type on this incredibly odd layout. As always, there's always a catch with my work. I had a bear of a time trying to solder that male USB plug that goes into the Teensy. So for now, I'm just going to plug my cords into the Teensy. Seems to work just fine and the cable routing isn't that bad. I like to think of it as Wabi Sabi hehe.



So the specs are:
- MX White Stems with MX Black springs except for the Down Arrow Key which is a MX Lock
- Right angle cable from TheFlyingRaccoon
- GMK caps

Layout:




So the MX lock controls FN2 and Caps Lock controls FN.

Major thanks to jdcarpe for answering all my stupid n00b-ass questions in email. And of course TJ who sent me a replacement PCB. Much love brothers.

And the only other bummer is that I tried to get the JD40 logo engraved on the back of the case but I learned that the Makerspace's laser engraver won't do stainless steel :(.



In addition to using the beta version of the EasyAVR programmer, I use PJRC's Teensy Loader to load the hex from EasyAVR to the JD40.
« Last Edit: Mon, 02 February 2015, 23:15:56 by CPTBadAss »

Offline Murdari0

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Re: Captain Badass' JD40 Build Log
« Reply #67 on: Sun, 08 February 2015, 05:12:29 »
Congrats on finishing up the build, and thanks for sharing your experiences, there's a lot of good info in here, for better or worse...

Can't wait to get mine.

Offline CPTBadAss

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Re: Captain Badass' JD40 Build Log
« Reply #68 on: Tue, 17 February 2015, 07:01:49 »
There's a lot of good info in here, for better or worse...

Glad you thought the build log was helpful. And I made all the mistakes so you don't have to :D. Hopefully we'll see yours built up soon enough!

Offline Skuloth

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Re: Captain Badass' JD40 Build Log
« Reply #69 on: Wed, 18 February 2015, 09:21:59 »
There's a lot of good info in here, for better or worse...

Glad you thought the build log was helpful. And I made all the mistakes so you don't have to :D. Hopefully we'll see yours built up soon enough!

Good work cpt!
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Offline stoic-lemon

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Re: Captain Badass' JD40 Build Log
« Reply #70 on: Mon, 09 March 2015, 08:52:47 »
A real treasure trove of information here. Thanks for documenting your builds as it really helps us n00bs.


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Offline jdcarpe

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Re: Captain Badass' JD40 Build Log
« Reply #73 on: Mon, 30 March 2015, 23:52:26 »
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Offline mrbishop

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Re: Captain Badass' JD40 Build Log
« Reply #74 on: Mon, 01 February 2016, 11:08:37 »
totally bookmarking this for when i do my JD40 build ;)
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