Overextrusion at deceleration zones, pressure advance
Quote from Kornél Ács on 2023-05-03, 10:09Hi!
I'm just getting used to 3D printing on a FLOW Idex, and I couldn't help but notice how highly increasing printing speed affects the creation of bumps/overextruded zones in the print. How I see the higher speeds I allow the more and more significant overextrusion becomes at XY deceleration zones, even at fairly sane printing speeds. I could adjust flow rate, but that would affect the whole print, creating underextrusion on other parts of the print. If I lower the speed extrusion becomes way more consistent, but printing at so low speeds are simply not a viable option.After a bit of searching around I found that what may be a bit of help here is pressure advance. Is such a feature supported by Craftbot machines? If yes, where can I find the adjustment parameters to play around with it?
Hi!
I'm just getting used to 3D printing on a FLOW Idex, and I couldn't help but notice how highly increasing printing speed affects the creation of bumps/overextruded zones in the print. How I see the higher speeds I allow the more and more significant overextrusion becomes at XY deceleration zones, even at fairly sane printing speeds. I could adjust flow rate, but that would affect the whole print, creating underextrusion on other parts of the print. If I lower the speed extrusion becomes way more consistent, but printing at so low speeds are simply not a viable option.
After a bit of searching around I found that what may be a bit of help here is pressure advance. Is such a feature supported by Craftbot machines? If yes, where can I find the adjustment parameters to play around with it?