Li'l Magnum! Fingertip Mouse for VXE R1 / R1 SE - Free 3D Print Model

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patshead

Tools>Gadgets

IP Report

Print Profile(1)

All

P1S

X1 Carbon

X1E

A1 mini

H2D

H2D Pro

P1P

H2S

P2S

H2C

X2D

A2L

0.16mm layer, 1 walls, 15% infill

42 min

1 plate

4.0(2)

Open in Bambu Studio

Boost

150

Released

Description

The mouse needed a name, so it is now called the Lil Magnum! Because it is small!

Be sure to check out the tips on successfully printing a good, light Li'l Magnum!

NOTE: I don't have an R1 to test. The R1 has the same screw pattern and button locations as my R1 SE, but it is definitely possible that I have accidentally blocked the camera with the front end of the lens holder. When I see a photo of the bottom of an R1 looking correct, I will post the info here! The R1 should come in about 0.6 grams lighter than the SE.

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 21.3 grams for the R1 SE with 250 mAh battery. Add 4.3 grams for the bigger 520 mAh battery in the R1 SE+ or SE Endurance.

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.

v0.1 - Added a lens holder to the R1 Pro files
- Moved the screw holes by 2mm to fit the new PCB
v0.2 - Lowered the PCB so the sensor actually works correctly and well!
- Lowered the buttons to match the PCB
v0.3 - Unimportant tweak to match the PCB height of the R1 Pro
v0.4 - Add chamfers to buttons for durability and longevity
v1.0 - Lots of changes that didn't manage to get uploaded until now!
- Arms for the side grips are angled up off the mousepad
  - Arms are a bit sturdier, but removing the support material is more persnickety
- Lens holder went on a diet
  - Lens holder now works with the R1 (fingers crossed) and R1 SE
  - Lens holder is now identical on the R1 Pro STL
v1.2 - Reduced weight by more than 0.25 grams
- Removed chunky undercarriage parts
  - Should be easier to support other mouse PCBs
- Added parametric side braces
v2.0 - Structural, weight, and ease of print changes!
- Weight in front end reduced by 0.2 to 0.3 grams
  - Buttons are slightly more solid even with reduced weight
- Button plungers adjusted
  - Square base instead of round for cleaner supported printing
  - Angled underside of paddles to reduce need for support material

The Customizer upload now has settings for FDM with slicer-generated supports, FDM with custom zero-clearance supports (for PLA with PETG interface), and SLA/SLS/MJF printing.