Hanging the RetroPie controllers & testing GST3D PLA+

Mounts for the RetroPie controllers.

A couple of days ago, I shared my setup for a Holocron RetroPie. At that time, I noted a future step would probably be to hang some controllers. Well, the future came today. This post will briefly share the controllers I bought and the solutions I used to hang them on the wall. Plus, I thought this would be an opportune time to test the GST3D PLA+ that many of us see advertised on Facebook.

Controllers used

I decided to go with a five-pack of game controllers sold by Vilros. I’ve bought Vilros Raspberry Pi cases previously and have been quite happy with them. So I thought I would give their game controllers a shot. I purchased two five-packs because it was cheaper than buying the ten-pack that includes two controllers each. The five controllers included in each pack include:

  • NES Controller
  • SNES Controller
  • N64 Controller
  • PS2 Controller
  • SEGA Genesis (MegaDrive) Controller

I tested each of them in the RetroPie, and so far, I have been pleased with this purchase. The controllers all seem responsive. I don’t really like the N64 controller, but that has more to do with me not enjoying that style.

Controller mounts printed with GST3D PLA+

Game controller mounts.

To mount the controllers, I used the STL’s posted by rephus on Thingiverse as Thing 1886256. The design is very minimal, making it attractive for me. If my kids were younger, I probably would have gone with a more sturdy structure.

To the left is a look at these mounts screwed into the wall. The controllers fit in these holders perfectly! Plus, they allow a place for the controller cable behind each controller.

As noted previously, I printed these in PLA+ from GST3D. I usually would print mounts like this in PETG or ABS. But I thought this was a perfect opportunity to test how strong this cheap PLA+ is (currently $12 a roll when buying 10). I did break one of the mount pieces for the Sega Genesis controller. But that happened when I slipped with the drill. So I won’t count that against GST3D yet.

The GST3D filament did print nicely, though. Bed and layer adhesion was similar to standard PLA’s I’ve used. I printed these mounts in a variety of temps between 200C to 220C. On my Ender 3 Pro, I had no problems at all. I printed a couple of the mounts with my Ender 5 Plus, and there was quite a bit of stringing. But that printer has an all-metal hotend, and I didn’t spend time to find the best retraction settings for this particular filament.

I’ll keep an eye on how long these mounts last. Due to how rigid PLA (or PLA+) is, I don’t expect these mounts to last a long time. But it will be interesting to see just how long they last. I am also curious as to how and where they will break. As the mounts fail and become unusable, I’ll probably reprint them in PETG.

Next step for the RetroPie

Up next for the Holocron RetroPie will be to get a brighter lighting solution inside the cube. I think I will print a diffuser with a translucent filament. Then I will put some neopixels inside hooked up to a microcontroller to create some cool lighting effects with the Holocron.

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