Ha, just watched the video! Looks like the nozzle to bed distance is a bit big! I'm with Obewan - Where is the z switch, top or bottom? Dave (Apologies for not reading the whole thread in the first place - I just saw that 'z axis not moving' bit, thought 'Yeah, that's familiar' and dived in....)by gbr1918 - Reprappers
Ok, you should plug the z endstop into the other location in the RAMPS board: if it's currently in z min then it needs to go into z max or vice versa. The way the endstop wiring goes on the RAMPS board (from memory, so this isn't very reliable!) is x min, xmax, y min, y max, z min, z max with the z max closest to the end of the pcb. After that, do you need to edit the config.h again? I kby gbr1918 - Reprappers
Hi Acme, Interesting project! I think even quite a flimsy 3d printer could handle a dremel + tiny end mill if the cut depths are small (if I'm going to do pcbs I'd rather not etch. It's so disgusting if you don't have professional gear and there's the problem of what to do with the ferric chloride afterwards ) I'm a noob to 3D printing, but I can say that the bigger the piece the more probleby gbr1918 - Reprappers
Yup, you need to invert your z direction: invert z direction = true (or false - whichever one it isn't at the moment). The reason your z axis isn't working is because the direction is towards the endstop, and as it's already at the endstop the logic stops it moving. Hope that helps, Daveby gbr1918 - Reprappers
#define INVERT_E0_DIR true Is your sketch uploading to the arduino ok? Daveby gbr1918 - Reprappers
could help. Daveby gbr1918 - Let's design something! (I've got an idea ...)
Hi MilloMille, the problem with your y-axis homing suggests that maybe the direction pin of the motor control ic is floating*. Is the Arduino plugged into the Ramps board ok? Dave *floating = not driven to either 0V or 5V but wandering in between. You probably already know that.by gbr1918 - Printing
Yes, I'll definitely pre-order. I'm using Excelvan 1.75mm ABS and it seems fine to me. Dave PS Interparcel are really useful for cheap carriage, including international.by gbr1918 - General
I'm using a 12V psu (cheapo, came with my made-in-china prusa i3) to power the extruder heat and the RAMPS 5V via the voltage regulator. The heated bed is fed by a 24V 40W psu made by XP Power. This is just getting switched by the mosfet on the RAMPS board, so using 24V is no prob and gets the bed up to ABS temperature (110 degrees C) in minutes rather than hours. Also, I have the bed mountedby gbr1918 - General
Openscad on Fedora 24. My background is also code (but mostly embedded) so code isn't a problem. I'm mostly designing small parts for electronic assemblies, so the easy re-sizing is a big plus.by gbr1918 - General
Reducing the motor speed might help: that usually bumps up the torque a bit. Also, is the rail alignment good? hth Daveby gbr1918 - Reprappers