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01-21-2016, 10:48 AM #1
- Join Date
- Jan 2016
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Delta/Kossel Mini - Printed Holes in X-Y *Help or Tips*
I have a delta/kossel mini I built from a kit off eBay and am having trouble with undersized M3/M4 size, PLA printed holes in the X-Y orientation.
I'm pretty confident the printer is calibrated well. I've checked and verified multiple times to ensure the bed is level, the X-Y-Z-E steps/mm are correct, delta radius is correct, and diagonal rod lengths are correct.
I'm using this M3 test block on thingivers : http://www.thingiverse.com/thing:381770
TestFitM3Nuts_preview_featured.jpg
Using Cura to slice (PLA), if I print it oriented like the picture is shown, the 3 holes (printed in Z) shown seem to be accurate enough. I can push fit an M3 bolt into the 3.5mm and 3.1mm hole and thread into the 2.9mm.
Using Cura to slice (PLA), if I print it with the numbers/holes facing up (holes printed in X-Y), I can only thread an M3 bolt into the 3.5mm hole. The 3.1mm and 2.9mm won't take the M3 bolt without drilling.
I'm printing 0.2mm layers, 1.75mm filament, using a 0.4mm nozzle. In Cura, I've played with extrusion rate (+/- 5%), extrusion temp (195-210), bed temp (60 - 70), shell layers (0.8-1.2mm), and speeds (20-40mm/sec) with no real significant improvements. The x-y printed holes are still too small.
I've considered trying slic3r, or maybe even Simplify3D, but I would really like to know what's going on before I add another layer of variation.
Any help or tips on what next I might try to get better accuracy in my X-Y printed holes?
Please explain to me how to...
Yesterday, 03:08 PM in 3D Printer Parts, Filament & Materials