I'm needing to see if I can get some assistance on the last bit of calibrating my kossel. So far I have X, Y, Z and C parallel within +- .001". Right now I am having trouble with LFR between the towers. L is -.007" off parallel, R is -.006" and F is -.005".
I have obtained these with a dial indicator mounted to my end effector.
So far I have remeasured and corrected the distance between all towers top and bottom, all measurements match within .01 mm. Through my searches I have came across this forum post http://forums.reprap.org/read.php?178,201301,214977#msg-214977. I was able to adjust the position of tower X to achieve the current state of L, F and R. The test points for my bed where calculated with a radius of 75 with COS 60 and SIN 60 to get {X,Y} for each tower (formulas in marlin firmware) for DELTA_TOWER1_X, etc... The test points between the towers where found with the same math but with COS 120 and SIN 120 to give account for the necessary rotation.
Should I keep trudging on and tweaking the positions of the towers in my firmware until I get these last points dialed in or is there a better/easier way to go about this. I haven't setup an auto level probe yet since I would rather have this as tuned as accurately as I can and using the probe if at all just to keep the machine working properly.
Sorry for the multiple units of measure, I haven't been able to find digital dial indicator locally but will be ordering one online soon enough.
I have obtained these with a dial indicator mounted to my end effector.
So far I have remeasured and corrected the distance between all towers top and bottom, all measurements match within .01 mm. Through my searches I have came across this forum post http://forums.reprap.org/read.php?178,201301,214977#msg-214977. I was able to adjust the position of tower X to achieve the current state of L, F and R. The test points for my bed where calculated with a radius of 75 with COS 60 and SIN 60 to get {X,Y} for each tower (formulas in marlin firmware) for DELTA_TOWER1_X, etc... The test points between the towers where found with the same math but with COS 120 and SIN 120 to give account for the necessary rotation.
Should I keep trudging on and tweaking the positions of the towers in my firmware until I get these last points dialed in or is there a better/easier way to go about this. I haven't setup an auto level probe yet since I would rather have this as tuned as accurately as I can and using the probe if at all just to keep the machine working properly.
Sorry for the multiple units of measure, I haven't been able to find digital dial indicator locally but will be ordering one online soon enough.