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Working on a Pi Front Panel for the Voron

10/2/2022

4 Comments

 
This started out like a simple idea and has turned into a project.  Turns out that cramming all the stuff I want to cram in this thing is much harder than I thought.  The idea of this is to be able to extend the LED's, the MicroSD and a couple USB 3.0 ports from the Pi to the front panel on the Voron skirt.  I plan to backlight the Raspberry Pi logo, the USB ports, and the status LED's using some "sequin" LED's designed for the Adafruit Lilly Pad.  I had earlier thought about backlighting the SD card symbol but I thought it would not really add much.  Right now all the pretty stuff is done, and I have modeled how the LED's can be attached (they will be glued into some form fitting pockets), but figuring out how the insert will go into the skirt part and not get pulled out or pushed in, is a problem I have yet to solve.  I could just glue it in I guess, but I would like to have some screws as well (if I can figure out where the screws could go).  For now, here are some pics on the progress (the large pic is the current status, the other two were prior versions).  These all look pretty much the same, since most of the work has been done under the hood.
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Update 10/7/2022: I decided to make the insert clip into the "frame" of the skirt.  It will have six clips so hopefully it will be secure.  I am now just waiting on parts to get the final dimensions and probably spend way to much time adjusting the model.
4 Comments
Daniele Sapino
1/4/2023 11:50:04 pm

Hello! I am planning to do something similar, does the raspberry work well with the MicroSD extender? do you see any issues compared to having the MicroSD directly in the pi?

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Mike link
1/10/2023 08:31:49 am

Hi, and sorry for the delay. Unfortunately I have had some things come up, and have not progressed on the Voron build much (and have not tested this config yet). I didn't really consider that there could be a problem with extending the MicroSD like this, but I recall seeing it done for some ender3 setups, and have used an extender to upgrade the display on my CR10SPro without issues. I am pretty sure it will not be a problem, but cannot be certain.

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Daniele Sapino
1/10/2023 08:36:54 am

Hello,

Thanks for getting back to me.

Meanwhile I found a workaround, instead of bringing the card to the front, I flashed the bootloader version that boots from USB first, and if no bootable USB is found it switches back to SD.

This is the best of both worlds for me, since I can leave a stable version of klipper on the SD, and use the SD for all my clumsy tests. If I break something and I don't have time to fix it (or don't know how to) I can always remove the USB stick and keep going while I sort it out.

Mike link
1/10/2023 11:45:16 am

Thanks, that sounds like a great workaround! I'm not planning to use the printer Pi for anything more than the printer itself, but I like having access to the card, so am gonna give the extender a shot. But it is good to know the Pi will boot from USB as a backup, if I run into an issue with the extender. Not having to tip the Voron to access the Pi cards and USB is my main goal with this, since that looks like no fun at all.

BTW, the design here is about 2/3 done, I still need to tweak it for the USB extender, since my dimensions were a bit off from the part I ordered (but means a bit of work to fix the design and test).

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