The shoulder was fairly loose on the tolerances, it was probably 0.3 mm because of the low sub divisions. I was pushing the firmware pretty hard to get 16x microsteps and 50 sub divisions/sec at 60 mm/s. At this speed I was able to see some distortion on the faster curves.Quote
Guizmo
Hello Jon
How precise are the parts coming out of your machine? Are they usable as mechanic parts?
Thanks
The 16x microsteps works out to about .0037mm which is absurd. Setting the microsteps to 4x (.015) or 8x (0.0075) I can hike up the sub divisions to 200 and still maintain the higher speed.
The print fits into the upper arm after some reaming and cleanup so I think they are useable parts.
[attachment 25866 DSE_4837.JPG]
I lowered the print head so the build envelope is approximately the same. 180mm diameter x ~100mm z useable. All of the GDR parts will fit in the build envelope.Quote
A2
@SolidusLabs:
You have longer arms now, what is the size of the build envelope?
Can it accurately reproduce the arms, and worm wheel?
What is the print speed, and what do you think the top print speed will be after tuning the software, and calibration?
I am printing the worm wheel now. I’m printing at .48 nozzle @ 150 micron layer height and about 30mm/s which will take about 4 hours. I normally print them with a .28 nozzle so we shall see how the teeth come out. I prefer slower and accurate instead of fast and have to print again. 60mm/s is printing now but I think I can get it up to 100mm/s