Hurray, just got home, my Omron D2F-01F arrived from Mouser.. It says Country of Origin_ Japan.. Hopefully Mouser's not selling fakes like Ebay.
All 3 buttons are replaced with D2F-01F (left, middle, right)
The wheel is lubed
I expanded the wheel clearance in the front.. used a round-metal-file <the reason is, the scroll wheel tends to hit the button flaps on the WMOs if you press too hard.. > visible in the second-to-LAST FOTO..
The scroll wheel clearance issue is not a problem on the IMO 1.1 or 3.0, only on the WMO does the cavity need to be expanded.
Most basically, the new omron click is faster and more responsive.
The Stock switches feel very mushy, this may be due to age, maybe they're always like that, I don't have a brand new WMO to compare.. Warning
the PCB traces are very-very thin.. Tp4 does not recommend mouse modding if you are a novice to soldering.. Tp4 highly recommends a bit more practice before attempt..
You can easily burn off these copper traces if you don't have a feel for the timing and temperature.Update: Tightening Scroll wheelPicture in last photo of post
Added standard mx-Spring to scroll wheel tensioner.. Fits perfectly, and will stay in place with no additional bonding mechanism.
It simply wedges against the PCB..
Note, you must place the top-of-the-spring underneath the tension-er before attempting to re-insert the pcb into the housing.. Otherwise, the spring will not go under the space once the pcb is in place.
The PCB is sandwiched into the last clear spiral on the spring to hold it tightly against the housing. Do not try to suspend the entire spring completely above the pcb into that small cavity, this might cause it to slide left and right.
Because I am worried about the metal potentially digging into the pcb, I put a piece of tape on the pcb to insulate.. the spring's metal against the pcb.OMRON Switch, Soldering Guidelines:
Temperature must be as low as possible, THEREFORE, use Leaded Solder.
63% tin-37% lead, Kester 44, --recommended--
300-350, Celcius is the range of temperature you want. as per spec-sheet, complete soldering at NO MORE than 3 seconds MAX..
DO NOT operate or at all perturb the switch immediately after soldering, The plastic is melted/soft
and any movement will cause internals to mis-align
Make sure to TIE DOWN the switch
to the pcb using twist ties.. tie the switch down the middle, Solder the two outside joints, then remove the twist tie, and solder the middle. Wait for complete cooling before removing the twist tie to solder the middle pin..
To prevent overheating, you could wait for complete cooling
after soldering Each joint.
OR alternatively, you can solder all the switches simultaneously, alternating between each pin of each switch.. This gives it some time to cool..
Again, NOT jostling/engaging/pushing the switch after soldering is very important.DO NOT RUSH, I know you might be very anxious to try out them new omrons, but if you rush, you greatly increase the odds of overheating or disturbing the switch while soft..
Take your time, these things arn't exactly cheap, $1.5 per switch, $5 shipping per package..