LB-3D
Wow, thank you so much for taking the time to do that comparison.
Missing jumpers were the issue. I must have been running full steps and almost vibrating my machine apart. I know how this happened, too. I'm new to the board and the use of the Polu boards so I stuck them right in when I got the kit and had since then forgot that there are jumpers under the stepper boards. Ran out to Radio Shack, bought the jumpers for 2 bucks and now it is running very smooth and homes well.
I'm a little slow so I'm going to look at each of your suggestions above and let you know how it goes. Everything you commented on makes perfect sense, too.
BTW, how do I manually find the Z distance? With my MakerBot TOM, I was able to place the nozzel in the center on the plate, run a script, and it would set the x, y, and z values. Being a delta I can calculate the x and y but is there are command in gcode to set current position as 0,0,0 and then home the machine and then send another gcode command to tell me what the new z value is? I'll search the forum for that, I guess.
Thanks again. I'll post my results asap.
Mike
Wow, thank you so much for taking the time to do that comparison.
Missing jumpers were the issue. I must have been running full steps and almost vibrating my machine apart. I know how this happened, too. I'm new to the board and the use of the Polu boards so I stuck them right in when I got the kit and had since then forgot that there are jumpers under the stepper boards. Ran out to Radio Shack, bought the jumpers for 2 bucks and now it is running very smooth and homes well.
I'm a little slow so I'm going to look at each of your suggestions above and let you know how it goes. Everything you commented on makes perfect sense, too.
BTW, how do I manually find the Z distance? With my MakerBot TOM, I was able to place the nozzel in the center on the plate, run a script, and it would set the x, y, and z values. Being a delta I can calculate the x and y but is there are command in gcode to set current position as 0,0,0 and then home the machine and then send another gcode command to tell me what the new z value is? I'll search the forum for that, I guess.
Thanks again. I'll post my results asap.
Mike