Wall Plotter / Polargraph

kr15_uk

Ladies and gents,

Found my old pen wall plotter aka Polargraph project and wondering if I could get it going on RRF?!
If yes than could someone please point me to the article/KB I've managed to miss?!
Ta

Kris

alankilian

@kr15_uk

What is a polarograph?
What kind of motors does it use?
What kind of geometry does it use?
How do you home it?
How does it print?

kr15_uk

@alankilian It’s your typical wall mounted pen plotter with 2x motors in each top corner with pen suspended in between.
Motors, endstops etc at this point are irrelevant really, I need to get geometry 1st which I’m not sure what it is.
GRBL calls it v-plotter, marlin have recently added specific “kinematic setting” called polargraph…
Hope this explains it a bit better.
Ta

droftarts

@kr15_uk the hangprinter kinematic may support a polargraph; a hangprinter is like a 3D polargraph. I’m not sure if you can just define two motor points, or whether the hangprinter kinematic may need to be adapted to support polargraph (one for @dc42 !) to allow support.

See https://docs.duet3d.com/User_manual/Machine_configuration/Configuration_Hangprinter

Ian