BTT PI TFT50 Case by mikes2277

Last crawled date: 3 years, 3 months ago

BTT PI TFT50 Case
This will allow you to mount the Big Tree Tech (BTT) PI TFT50 screen to any 2020 extrusion.
Required Hardware
12 - M3x8mm - Screen frame and mounting bracket to rear Pi cover
4 - M3x10mm - Cooling fan to rear Pi cover
1 - 4010 5v fan (https://www.amazon.com/gp/product/B07WJT4XJK/)
1 - M3x20mm - For the mount pivot
1 - M3 nut - For the mount pivot
4 - M2.5x25mm - Rear Pi case, through the Pi, into the BTT PITFT50 mounting posts
2 - M3x6mm - Mount to the 2020 extrusion
2 - M3 T nut - Mount to the 2020 extrusion
Pro Tips
Don't overtighten the M2.5x25mm's into the BTT PITFT50. They are only lightly soldered on and will pop off the back of the PITFT50. From experience I can confirm that they can be soldered back on, but it is not enjoyable :)
Don't overtighten the 4 - M3x8mm that connect the mounting bracket to the rear Pi cover. It will not be the highlight of your day to have to reprint the rear case because you need to show the plastic who is boss.
Use your saved up energy from above to crank on this pivot screw. The plastic is very strong there and will take some loving to get to clamp tightly. You don't want your Pi to flop around when you press your screen :) If you are having issues due to your printer not being very accurate about the gap, add a piece of electrical tape and pop a hole for the screw to go through. That should help to make the gap easier to make tight and gets rid of the plastic on plastic slipping. If I were cool, I would have made a texture on each side of the pivot, but I'm not.
Supports
It is recommended to print with supports on build plate turned on so it keeps the screw insets from sagging and keeps the hole more perfectly round, but otherwise supports are not needed.
Flow Tuning
It is also recommended that you tune your slicer flow as described in Teaching Tech 3D Printer Calibration to get your tolerances in line with how the case was designed and tested for.
Filament
Translucent filament is recommended so you can see Pi power LED through the case but obviously not a requirement. I used Printed Solid Jessie Red Ice