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Topics - Pico

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1
General Mach Discussion / DRO works, motor does not
« on: January 08, 2013, 11:16:49 AM »
I have installed a 4th axis motor to be used as an extruder, converting to a 3d printer. The controller is  Hobbycnc , which works fine, but I cannot get the 4th axis motor to work. The DRO and hot keys move but the motor does not. The motor is getting hot, so it's getting current but is too hot to the touch, so I think it is wired incorrectly. The motor is a Sanyo 2 phase stepper 103H5208-10U41 nema 17. Any ideas about how I can solve this problem? Thanks,    Pico

2
General Mach Discussion / Motors not tuning
« on: July 20, 2011, 05:26:05 PM »
I installed Mach3 in my cnc computer several years ago and used it for a large job and several smaller projects since then, and recently installed a new harddrive in it and am attempting to get it running again but can't get the motors to turn. I watched the trouble shooting videos and did a search here about this problem but still can't beat it. One thing struck me as odd: I found on checking the parallel port the address was 03FB ( or maybe 03F8, I used both), which I put in the Engine configuration- Ports and Pins. The DROs are working but the motors don't turn. I can hand turn the motors when the power is off but not when the power is on. I have read about checking the voltage with a multimeter but uncertain how to do that. Do I have a parallel port problem? Any help appreciated. Thanks,   Pico

3
General Mach Discussion / Motor tuning not appearing
« on: July 19, 2011, 12:13:09 PM »
Recently a friend installed a new harddrive in my cnc computer and I have now trying to use it. Motor tuning does not appear. I have done a "motor tuning" search and it seems one possible problem is that he renamed the file. I deleted Mach3 mill and reinstalled it and renamed to what I think was the name it was using before the new hardware but still no motor tuning. What shall I do now? Is there a workaround for this?  Thanks,  Pico

4
General Mach Discussion / Cuts much too large
« on: February 27, 2011, 11:28:44 AM »
I'm probably making a really stupid basic mistake, but I've been playing around with this thing for the last two days and can't understand what's wrong. My router (rockcliff with cnchobby controller) makes cuts about 5 to 6 times larger than it should. I have checked the motor tuning settings which have not changed so that doesn't appear to be the problem. Help!

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General Mach Discussion / Z axis cutting too deep
« on: December 18, 2009, 03:17:48 PM »
My cnc computer has been off for about 1 1/2 months; previously I used it for about 60 hours, spread over 2 weeks with no problem. Recently I have attempted to cut a piece about 2"X4"X.85". The X and Y axis are alright but the Z axis continually cuts too deep. The first several pieces I cut seem to be about 100% too deep - the cut was through the 1 " material, the 3/8" plywood that it was contact cemented to, and into the table about 3/16". Other cuts I made have not been as extreme, the cut this morning maybe 50% too deep. The program limits reads Z range =.85". I don't think the DROs are reading correctly, the tool retract height is +.15 but after it has cut deeply into the material, and the cutter has retracted to +.15, I can look across the top surface of the material and the bottom of the cutter will be beneath it. I checked Ports and Pins-Motor Tuning and the Z axis steps are identical with the X and Y axis. I've looked over this board but can't find a similiar problem. Any idea about how to solve this?    Thanks,   Pico

6
General Mach Discussion / tool change problem - what have I missed?
« on: October 06, 2009, 05:39:17 PM »
This is the first time I've tried to change tools and it's not working out well. I have measured the difference between T1 and T2, which is -0.0475" and entered that in G55. I ran T1, manually change to T2, which cuts above where it's supposed to about .05". I have homed both T1 and T2 to G54 G0 X0 Y0 Z0 and G55 Go X0 Y0 Z0 and they both go to the exact same spot. Would someone straighten me out on this?    Thanks,   Pico

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