TPU Rubber replacement - Logitech G604

TPU rubber replacement for Logitech G604. It comes in 2 variants - all parts separate and joined together into one sheet. (The photos are showcasing the latter).

Depending on the TPU type it might require some post processing. I've used rather hard D40 - and as such I had to deal with shaping the print by warming it up with a hair drier and modelling with manually to make a better fit for mouse chassis.

It's not perfect but fits well enough, any small excess can be trimmed down with exacto knife. If anything I'm including Fusion file if someone wishes to tweak the shape further.

----

Printed in 0.20mm layer height, model itself is set to 0.83mm height, which should come out in 4 layers.

Using textured PEI plate creates faux leather like layer. Although taking print off the print bed is a nigthmare (best tip: use IPA or other strong spirit - eg. surface disinfectant - as you're lifting off the print.)

Straight off the bed the print will be curled, so it's advised to mold it further using a heat source (eg. hair drier), or bend and roll the corners with own fingers.

The good result should look similar tothis:

Alternatively a smooth PEI plate makes the print come off the print bed much, much easier and we avoid curling:

All in all before commiting to glue, match and mold the TPU print as much as possible, so you have clear understanding how it has to be lain down.

The thumbrest part might cause problems - in my case, there are extra plastic ribs that prevent TPU from sticking to the chassis. It might be best to trim them down before putting down glue.

My approach for single sheet print has been:

1. mold the print and make sure all the sides and corners encompass the chassis edges - minimize risk of them rising up after applying glue.
2. start gluing down with the G logo (top right) quarter of the top part
3. then the right side panel
4. then left top quarter of the top part
5. right side - the tiniest sliver first, so it doesn't move later 
6. right side continue
7. the rest left and right bottom
8. any parts that were too long or were getting into the way were trimmed away.

I used cyanoacrylate glue (UHU All Purpose), but not a regular super glue, but rather something more in gel consitency that take more time to take a hold - it gives more time to move the rubber around to find the best position.