Status update. Spent 2 days googling for “3D printer coordinate system orientation” – “3D printer coordinate axes” – “3D printer coordinate axis” blablabla. Could not find a picture that shows the printer with the axes oriented and positive/negative axis direction. Then I found this page:
http://www.buildlog.net/wiki/doku.php?id=ord:software&Basically it has everything I’ve been looking for. This is not the first time I found out that the information is out there, but because so many people post so much stuff it’s hard to select the vital information.
All motors are working. The firmware is uploaded. At least 50 times
I'm using Marlin and Pronterface. I tweaked some settings like the DEFAULT_AXIS_STEPS_PER_UNIT (87.884544, 87.884544, 1511.811, 93.36304).
The first two (X and Y) will be 200 (steps/revolution) * 16( microsteps/step) / 18 (teeth) /2.032 (MXL belt pitch) = 87.4890 … this gave me 99.73 mm on a 100 mm travel, so I tweaked it a little bit. This might change in the future. I’m working on a bracket which will hold my caliper, this way I can do 100 mm travel and see how precisely the axes are positioned.
My Z axis steps will be: 200 (steps/revolution) * 16( microsteps/step) / (25.4/12) = 1511.811 – this worked fine from the beginning.
There are two recommendations for the QU-BD extruder. I’ll go with the manufacturers recommendation.
I’m learning the software. The pronterface seems to be a bit on the simple side, but it’s a free software so what should I expect, right? I’m still thankful for all those people who contributed to it. One bad thing is it has no options to reorient the part on the build table. Or at least I have not found it yet.
I heated up the hot end and bed today for ABS. At 84 deg C the glass on the hot bed shattered. I guess they do not use borosilicate glass for flatbed scanners. I’ll have to order the glass online…
The end switches seems to be off. I need to figure out how to swap their position in the marlin.
The z axes look completely wobble free now, after 5-6 times disassembling and assembling them.
From the preliminary measurements I think my Hadron can only build a 200x200x150 part only. For some reason I thought the height can be 200 too.
So right now when I turn the machine on I can drive the axes to the positive direction only. They will not go to the negative direction. Not sure what causing this. If I disable the motors in the pronterface and manually move them all away to the end stop it’ll do the full 200 mm travel towards the positive direction of the axis. It would be nice to talk with someone of you guys live, maybe via skype - who is not building his first printer. I know I’ll fix this baby, but I definitely want to avoid the hot end plowing into the hot bed.