I am using printer with ball screws and I can say that for me S-curve is really important. While belt motion got some elasticity ball screw got 0. This is really cool as I have no ringing at all and really smooth print but I need to live with very low J**k and acceleration settings like 200 J**k and 300 acceleration. If I got faster the ball screws start producing noise like hammering during direction change. Current j**k implementation is just stupid. It is okay to change the speed with j**k but it is not okay to change the direction with half of the j**k speed. So I am really waiting for S-curve to come as it really will make my system to perform really well and to be silent.
Posts made by Neonode
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RE: S-Curve/ sinusoidal , Jerk +acceleration
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Need Help - Duet WiFi Additional Drivers
Hello,
I have build my own pcb for two additional drivers TMC 2660-PA (same as original). Pinout and the overal PCB design is exactly as Duex2 but with removed unnecessary components alike end-stops and mosfets for extruder and etc. I just need two driver and compact pcb. Unfortunately Duex is really big and can't fit for my purpose.
I have a problem with SPI, Duet do not detect the drivers neither try to select them. What I need to do in order to make Duet to search for those drivers same as it do for Duex2. How Duet identify that Duex card is attached ? As I use TMC 2660-PA I would like to use STallGuard for switch-less homing of my additional axis and to control current and micro-stepping trough the firmware.
Regards,
George