Z axis wont move, y axis acts strangely

Re: Z axis wont move, y axis acts strangely

Hobbes20xx — Tue, 12 Jul 2011 08:28:27 -0400

your right nophead :/ hehe woops switched them, recalibrated, now i can print! just did a test block, thanks guys!

Re: Z axis wont move, y axis acts strangely

nophead — Mon, 11 Jul 2011 13:22:09 -0400

float z_steps_per_unit looks too low as well, looks like Y and Z are swapped.

Re: Z axis wont move, y axis acts strangely

Sublime — Sun, 10 Jul 2011 16:23:26 -0400

Quote
Config

//Calibration variables
float x_steps_per_unit = 80.376;
float y_steps_per_unit = 2666; <<<<------ This looks wrong
float z_steps_per_unit = 76;
float e_steps_per_unit = 600;
float max_feedrate = 200000; //mmm, acceleration!
float max_z_feedrate = 120;

The X and Y should be close to the same if not exactly the same. Unless the pulleys are drastically different in size.

Your original Config file also has them both really different x 80.376 and y 800 which looks wrong.

Since Y worked originally I would try setting both of them to 800 then use [calculator.josefprusa.cz] and prontofaces jog panel to fine tune them individually.

Re: Z axis wont move, y axis acts strangely

Hobbes20xx — Sun, 10 Jul 2011 15:47:27 -0400

Well, i just tried recalibrating the prusa to see if that makes diference, before going on to your idea... now that i recalibrated, that gcode makes my motors lock up beacuse it looks as if they are being pulsed to fast. you can see the massive difference after calibration in my new config.h is there a way to stop this in skeinforge?

Re: Z axis wont move, y axis acts strangely

Sublime — Sun, 10 Jul 2011 15:06:51 -0400

Strange the Gcode looks good it has z going up in .4mm layers. I don't use sprinter but I wonder if you need to enable Limit in skeinforge for your Z axis and set it to say 1 or 2 mm/s.

As for your other issue, You have negative movements which could be your problem make sure you have your build areas center in the multiply tab of skeinforge set to the correct place for your machine ( looks like 110 x 110 for you ) and make sure its enabled. This moves the part from being centered at 0 x 0 to the center of your build platform.

Re: Z axis wont move, y axis acts strangely

Hobbes20xx — Sun, 10 Jul 2011 14:47:30 -0400

Yep. when i jog them using RepG or pronterface they move in the proper directions..

Re: Z axis wont move, y axis acts strangely

Sublime — Sat, 09 Jul 2011 21:25:38 -0400

Have you un-commented the Ramps 1.3 section of "pins.h" in sprinters folder? If not it is set for Ramps 1.2 as the default.

Z axis wont move, y axis acts strangely

Hobbes20xx — Sat, 09 Jul 2011 20:29:07 -0400

Hey guys, so i feel as if im soo close to actually printing something. When i send the Gcode to the printer however, my y axis shoots 10mm from the print bed, and my z axis wont move! (x works fine though) Im using Sprinter, RAMPS v 1.3, Skeinforge to convert this file to my printer, when i change the .stl to Gcode it doesnt look as if the z axis is being told to move (attached). Im gonna post my firmware config.h just for anyone who needs to see....