Topics created by jbergene

@jbergene It's on the Internet Archive/Wayback Machine here: https://web.archive.org/web/20220122091727/https://duet3d.dozuki.com/Wiki/Duet_2_Pinout_table

It has not been migrated to the new wiki, mainly because with RRF 3.x naming the pins, isn't particularly relevant any more. The up to date pinout table is here: https://docs.duet3d.com/Duet3D_hardware/Duet_2_family/Duet_2_WiFi_Ethernet_Hardware_Overview

Ian

@jbjhjm thanks for the update!

@mfs12 thank you

@o_lampe watercooling the heatsink would make little difference in my opinion. As the magnum already had very low thermal transfer.

So that's why I thought the speed could just dynamically while the temperature is decreasing and increasing.

It also cools a lot quicker while extruding, since new filament will absorb the heat

@phaedrux That is true. I havent tried these stall detections yet but have to give it a try it seems.

on the PRusa i3, it works flawlessly and you can barely see it on the print.

My experience with skipped steps have come from nozzle crashing into blobs that have fallen of the nozzle during printing (generally PETG).

@Veti Thank you again 🙂 saved my evening

@dc42 Is it possible to connect a SBC like RPI and use the RPI onboard computer instead of the 120mhz Arm CPU on the duet board?

to overcome CPU the CPU bottleneck.

Br
JHB

I would definitely re-evaluate your design goals. If you really want 300mm/s speeds and high accelerations then ball screws really aren't ideal.

You've already realized this and are seeking out exotic motors as a possible solution, but that's really just a new problem.

I would suggest you take a pause, re-evaluate what your end goals are, and then start working backwards from there to find the simplest solutions that get you there. Maybe that's ball screws and servos, but I think a more traditional approach is more appropriate.

That being said, to better answer your question on servos, you can use them as any other external motor driver that accepts a step and direction signal.

@mrehorstdmd adventure in servos would be very informative.