Embedded Raspberry Pi for Rostock Max V2

[DodgeDerek]

So I have been using OctoPrint successfully and wanted to find a way to cleanly mount the Raspberry Pi within the print. So I came up with these goals and I think I found a solution that works pretty well:

• The Pi needed to be inside the printer for portability and cleanliness
• The power and at least one USB connection as well as the main body needed to be accessible inside the printer. I wanted to have one and only one power plug on the printer and at least one USB to drive the printer board. Also I wanted the body inside so if I chose to upgrade to the Pi camera down the road, I can find a way to mount it in my enclosure with the cable running from the base up.
• I needed to have at least one USB and the Ethernet port exposed externally. My printer is in my basement at the limits of my home wireless, but I have a network jack I can plug into so I have good control and frame rates for the OctoPi cam.

With these goals in mind, I settled on the blank side plate of the base of my printer and came up with a mount that would poke through with an angle that with some clever covering and a right angle USB cable would satisfy my requirements.

[img]https://farm8.staticflickr.com/7182/26240876413_3fa82050a2_b.jpg[/img]

[img]https://farm8.staticflickr.com/7134/26845456325_bee0f50388_b.jpg[/img]

[img]https://farm8.staticflickr.com/7109/26240868553_3aa150de77_b.jpg[/img]

[img]https://farm8.staticflickr.com/7282/26845458675_1956cbb551_b.jpg[/img]

Check out my write up on Thingiverse

[Eaglezsoar]

Great solution, thanks!

[geneb]

That's an absolutely fantastic layout! I love it!

There's a problem though - totally unrelated to the Pi installation.

It appears that you've used the center hole in the base to route the Onyx wires instead of the offset hole. The center hole was actually a cutting error and shouldn't even be present. With the old ATX power supply, this would be no big deal, but with the new power supply, that hole becomes problematic.

What's going to happen is the power supply will heat up and it's internal fan will kick on, blowing air straight up through that hole and on to the thermistor in the Onyx. The RAMBo will think the Onyx needs more heat and then apply more power to the Onyx. This is going to result in some pretty serious banding in your parts. You really need to move that wiring and cover the hole on both sides (or print a plug and glue it into place).

g.

[marcom]

Gene - thanks for the post - I think I may have threaded through the center hole.

Luckily haven't noticed too much in the way of artifact. This does explain why that plug posted a while ago didn't have a spot for the wires that are now running next to it in my printer while it sorta sits in there halfway.

A heads-up warning in p114 of the very-excellent manual might be called for (unless they've eliminated that hole). I see that the base you used in the manual has no center hole, but mine did.

[geneb]

Check out the bottom of page 60.

The issue was that a CAD error was introduced that caused the laser to incorrectly cut out the center hole. It was only for a limited number of machines, but it was a pretty big issue to the end-users. JJ & crew went above and beyond discovering the banding issue a customer was having and it turned out the little hole was the root cause.

g.