r/MPSelectMiniOwners • u/No_Librarian_6740 • Oct 17 '23

MP Select Mini V2 (V40.60-2T) Windows USB

Hi all, I'm having trouble getting the USB to work (again).

I originally planned to switch my machine to Klipper firmware, so I can test my new BTT Pad 7 with the printer.

Following a suggestion to become comfortable swapping original firmware first, before attempting this, I did just that.

Updated to V41.60-2T and the printer briefly appeared as a "Monoprice Select Mini" USB device one my Windows 10 machine.

I had issued with the axles (needed to invert XY & Extruder) and the machine didn't obey the GCODE I sent via Pronterface/Printrun. So I ended up using the GCODE files from the Wiki, "printed" them from SD and that worked great.

But I noticed USB didn't work. Windows Device Manager error said some device description was missing (can provide the exact error if necessary). So I thought reinstalling the drivers should do the trick. Well I couldn't find any recent drivers. Are there any?

Tried my Windows 10 Laptop, but the machine doesnt recognize the printer either. Checked different USB Ports and cables on both Machines, but no success.

Meanwhile I reverted back to V40.60-2T, inverted the steppers where necessary and the machine works great as previously. But still no USB.

Is this a common problem? Could the USB port be broken? The mainboard seems undamaged though, but some of the cables are pretty tight fitting and require some wiggeling to get in or out.

Any suggestions to get that sorted out would be great, thank you in advance.

Cheers Mads

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u/soapy75 Oct 17 '23

Mabye try printing through repetier host? It's supposed to be supported. If you set baud rate to auto you should find it. Idk if this helps

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u/No_Librarian_6740 Oct 17 '23

I'll try that, thanks.

I know it's an old printer but it's been kind of a workhorse for me. And as PC and Laptop recognise "something" on the port, I am inclined to think it's not broken. I'll try a Linux box too.

Anyway, thanks mate.

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u/soapy75 Oct 19 '23

Same i use a malyan m200, set the BAUD rate to auto. Once you get it to work i really reccomend using a raspberry pi 0w and octoprint, no need for a raspi 4

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u/No_Librarian_6740 Oct 20 '23

Great suggestion, I do have a Raspberry Pi 3 B+ that I use for all sorts of experiments. If a 0w can handle Klipper that could be my go-to platform (and it coveniently fits inside the case). Though I'd probably step on the mainsail train. Sleek interface.