Li'l Magnum! Fingertip Mouse Shell for MCHOSE L7 Ultra (18 grams)

This is obviously inspired by Optimum Tech's Zeromouse and Zeromouse Blade, but using FDM and a more affordable donor mouse.

The thumb and finger rests are in a reasonable spot for me, and the buttons are lined up well.  The shell requires A LOT of bending and finagling of the button paddles to get the donor PCB installed.

The model is parametric, but it needs cleaning up.  I want to make it easy to adjust the offsets of the finger grabbies, but it is too messy for that so far.  I will post the OpenSCAD after I get it cleaned up.

My setup printed in PLA comes in at 18.00 grams with the MCHOSE L7 Ultra electronics.  

The button flapper paddles have less spring tension when printed with one perimeter instead of two, and the length of the plunger has been adjusted to make up for this.  I am using lightning infill, and I had to lower the “minimum sparse infill threshold” in Orcaslicer to 1 cubic mm to make sure the button arms would be hollow.  The width and thickness of the arms is dialed in for the springiness of PLA.

I do not have an L7 or L7 Pro to test, but it looks like they should fit just fine.  If you try it out, I would love to hear how things went!

• v2.0 - Initial release of the Li'l Magnum for the MCHOSE L7 Ultra

• Li'l Magnum! shell for the VXE Dragonfly R1 Pro / Pro Max
• Li'l Magnum! shell for the VXE Dragonfly R1 / R1 SE / R1 SE+
• Li'l Magnum! Fingertip Mouse Shell for VXE Mad R

• Li'l Magnum! 22-Gram 3D-Printed Fingertip Mouse Mod For The VXE Dragonfly R1 and R1 SE at patshead.com
• Can We Compete With The Zeromouse For Under $25? at patshead.com
• Ultralight Fingertip Gaming Mice - Two Weeks With My 21-Gram L'il Magnum at butterwhat.com