Problem solved I hope. It turns out my firmware was not saving settings in EEPROM. Thus ever reset the firmware was going back to the default setting that were too fast for my hardware. After looking at the g code I found all my previous assumptions were all wrong!by profitt - General
In Repetier I place my part away from the origin but the print head never moves far from the origin after homing. My thinking is that the slice3r is trying to move the platform in the y direction forward where I want to move the print head backwards. Thus the end stop is reached and the print killed. Although in some instances the print head does manage to move back some allowing a print of sortsby profitt - General
Hi all, I have not posted to this form in quite a while so please forgive me if this subject is off topic. I am just finishing off a neglected project (4 years!) . I am making a 3D printer from a Shapeoko kit I was given in a drawing. This is a low budget affair utilizing custom made parts and import quality when prudent (Ramps 1.4 Arduino Mega Pololu Shield and J-Head hot end). For firmware Iby profitt - General
These warnings only appear on the first pass and are suppressed on subsequent compiling. Attached is the preferences file for my version of Arduino. I am not certin that this is anything more than an issolated anomoally. Please let me know if I can further this inquiry along should it become interesting. C:\Users\profitt\Documents\arduino-1.0.1\hardware\arduino\cores\arduino\HardwareSerial.cppby profitt - General
You have it, in one instance a (G1 Z-1) moves the head up and in the second (issuing a homing command translates into t.X=-1000000) the head moves in the opposite direction. I believe you are right in that it has something to do with integer math. I changed the Arduino compiler to verbose output and periodically noticed warnings for comparing signed values with unsigned. I am not conversant enougby profitt - General
OK, here is a better description: After moving the head to the center of my platform and setting position to 0 (G1 X0 Y0 Z0), a controlled move (G1 X10 Y10 Z1) moves the head to the left front and down. Reading position (M114) confirms this as position -10,-10,-1. Issuing a home command (G28) moves the head to the left front down end stops. Again, M114 reads 0,0,0. Issuing a (G1 X-10 Y-10 Z-1) mby profitt - General
Hi All, My apologies if this is the wrong place for this question. I am building a printer using a ShapeOko platform (gift), Anduino Uno (low cost) and pretty much hand built everything else (dumb). I am close to my first plastic but am having trouble with homing my axises. More specifically: after finding home all moves are in the negative direction. I can offset to the center of the bed OK butby profitt - General