I have printed it on my Prusa XL using Prusament PETG, 0.4mm nozzle and the IS printer profile 2.25 STRUCTURAL with 40% infill.

To get a tool for up to 8 buttons you need:

• 7 x Arm A
• 7 x Arm B
• 8 x Arm C
• 8 x Center Tap
• 4 x Washer
• 16 x End Tap
• 16 x End Tap Peg

When you mount it be careful to put the arms in the right order. Arb B as the base, then arm A and arm C on top. For the first and last Arm C you need a washer instead of arm B or A.

I suggest that you mount it flat on a table and just push the pegs in a short bit to start with, if you push them all the way it is hard to take it apart again.