search

jmamma / MegaCommand_Design

MegaCommand MIDI Controller
Other
74 stars 11 forks source link

Enclosure & knobs, {tall,short}/material recommendation? #11

Open yatli opened 4 years ago

yatli commented 4 years ago

I'd like to print a few official cases and knobs, any recommendations here? I see there are two versions (tall/short). Also, very cool to see the knob getting modeled! Wonder if I could print rubber-like knobs?

jmamma commented 4 years ago

You want to print the Tall enclosure.

The short version is the same height as the original minicommand case but requires shaving off around 5mm of plastic off the DIN ports.

I have flexible filament. I haven't tried printing encoders using it though.

yatli commented 4 years ago

Another question :p

How do I lock the board to the enclosure? I see 4 through holes on the lid but it's supposed to be locked to the body, not the board?

jmamma commented 4 years ago

the encoder nuts hold the front of the board in place. and the rectangular strip on back plate presses against the the MIDI ports.

yatli commented 4 years ago

Understood. Placed the "tall" order + 8 encoders. 400 RMB. :D

jmamma commented 4 years ago

Any idea what quality you printed at?

The encoders knobs might not fit the shaft, depending on the tolerances of the print. I've had issues here ^

yatli commented 4 years ago

I guess.. just the normal stuff. 0.1mm tolerance

yatli commented 4 years ago

Oh and, they offer to embed 4 copper nuts in the body and I happily accepted :p

jmamma commented 4 years ago

See how you go.

400 RMB sounds like a bargain.

jmamma commented 4 years ago

Oh and, they offer to embed 4 copper nuts in the body and I happily accepted :p

For the screws?

yatli commented 4 years ago

Yeah. The cylinders seems to be strong enough to hold them.

jmamma commented 4 years ago

ha! One of my early designs tried this... The slots I made for the Nuts always ended up being thinner towards the corners, meaning I couldn't align the nuts with the holes correctly.

I gave up on this, and went for Self Tap screws. Which work surprisingly well.

yatli commented 4 years ago

https://github.com/jmamma/MegaCommand_Design/commit/1339fe99583b68638f9dfa7dfdb793e1ff2d5c07

Emmm... I sent the old lid to them

jmamma commented 4 years ago

No problem. The fit is dependent on your build. So it might be fine. If not you can just rotate the lid to not use the rise. Or if you still need some stability, you can file down the rise with sand paper.