Author Topic: [WIP] Building an ergonomic TKL  (Read 2367 times)

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Offline MajorKoos

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[WIP] Building an ergonomic TKL
« on: Mon, 18 July 2016, 19:02:16 »
Hi GH,

The IC that LZ has running for an ergonomic TKL has really stirred my interest.
I hope that I'll be lucky enough to grab one (or two!) of them, but until that happy day I figure this is a good way to keep my occupied.
I'm planning on cutting up a Phantom PCB for the innards and using a Teensy 2 ++  so I have some additional pins for RGB backlighting, etc.

I've got a case design and have DXF and STL files for everything.
The question I'm hoping for some help with is how to I specify a chamfer in a DXF file that I can send to a CNC shop?
Should I even be using a DXF file to begin with?
Some guidance would be greatly appreciated.

Offline Clicker

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Re: [WIP] Building an ergonomic TKL
« Reply #1 on: Mon, 08 August 2016, 11:28:26 »
I like the wider spacing and large angle on your design. I think I'm already regretting not making mine similar.

What did you model and render that with?

Offline joey

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Re: [WIP] Building an ergonomic TKL
« Reply #2 on: Mon, 08 August 2016, 11:36:09 »
I'm not sure if it's worth cutting up a Phantom PCB or not.

Offline Phenix

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Re: [WIP] Building an ergonomic TKL
« Reply #3 on: Mon, 08 August 2016, 12:16:18 »
I am interested in an phantom pcb (prefer 7BIT ħbottom row)
If for sale please pm
Winter is coming.

Offline MajorKoos

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Re: [WIP] Building an ergonomic TKL
« Reply #4 on: Mon, 08 August 2016, 12:39:02 »
I like the wider spacing and large angle on your design. I think I'm already regretting not making mine similar.

What did you model and render that with?

I started out with a series of DXF files (left, right and nav cluster) from swill's tool and used Fusion360 for the modelling/rendering.
The left and right parts are at an 11 degree angle and there is a 1 inch gap at the top between the L/R clusters.
I haven't added any tenting yet as I'm contemplating having it laser cut in frosted acrylic by BBS - about $90.
What's got me stumped though is how to add a chamfer to the top/bottom edges.

btw, here are the source files:
https://github.com/MajorKoos/KBDParts/tree/master/Keboard%20Cases/Splergo
« Last Edit: Mon, 08 August 2016, 16:36:07 by MajorKoos »

Offline MajorKoos

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Re: [WIP] Building an ergonomic TKL
« Reply #5 on: Mon, 08 August 2016, 12:51:20 »
I'm not sure if it's worth cutting up a Phantom PCB or not.

I'd like to be able to swap keycaps without the fear of pulling a switch through the plate, especially when it's plastic.
Having the switch soldered into a PCB will help prevent that, provide a sturdier base to type on and give me the option of adding some internal supports to screw the PCB's into.
It also means I'm not limited to costar stabs.

I'm going to chop the PCB into 3 pieces - left, right and nav.
I've ordered a 6.25u enabler from techkeys to go under the spacebar.
I'll wire the PCB up as usual (diodes, resistors, teensy, etc) and use hookup wire to jump any traces that need to be cut.
The enabler will be wired to the usual spacebar position via hookup wire.