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Messages - Hillbilly9749

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11
General Mach Discussion / Re: Losing the will to live :-(
« on: January 17, 2009, 01:39:30 PM »
Yes it is the Marchant Dice drive Hood. Just had another look and noticed that if I touch the Z axis connection cable when connected to the Z drive the stepper makes a noise. Touching or moving the other two drive cables has no effect. ???

12
General Mach Discussion / Re: Losing the will to live :-(
« on: January 17, 2009, 12:08:59 PM »
Hi Hood, it has me baffled because it ran faultlessly for two days and unless the supplier has a faulty batch of controllers I don't know what the problem could be. All the steppers are working ok provided they are connected to the X axis but none of them work properly if connected to the seemingly faulty Y and Z drives. I cannot see it being a Mach3 or computer fault because the new controller ran perfectly at first. What sort of drives would you reccomend as this problem is costing me lots of time and production.

13
General Mach Discussion / Losing the will to live :-(
« on: January 17, 2009, 11:53:00 AM »
I reported on here last week that I was having problems with my new machine which I tracked down as being associated with the control box. I duly informed the supplier and he sent me a new one. I fitted this and everything has been fine and the machine ran without any problems for two days during which it produced around 600 fishing float bodies of various shapes and sizes. However when I tried to use it today it started to play up again and quickly deteriorated to roughly the same state as last time it went down. I now have only one smooth axis  a noisy Y (losing steps) and the Z even tries to run backwards sometimes but even when going the correct way it is prone to just stop and lose loads of steps and makes a horrible noise. Is it common to have these sort of problems or am I just unlucky as it would seem that the control box has failed again.  >:D

14
General Mach Discussion / Re: Control box broken ??
« on: January 12, 2009, 07:42:28 PM »
Cheers everyone I will ring them in the morning.

15
General Mach Discussion / Re: Control box broken ??
« on: January 12, 2009, 07:14:55 PM »
The only information on the control box is - CNC Depot Advanced Multi Axis Stepping Controller unit. The unit was supplied by Marchant Dice as part of a machine kit and the following is the info in their description. Maybe some of the UK members will have heard of them. I have just fired everything up again and noticed that the motors connected to the two axis that will not work are making a very faint buzzing noise but you have to listen very close up to hear it. Both these motors still work fine if cionnected to the Y axis terminal.

3 Axis Controller and stepper motors.

Parallel port to the PCB break out box with all connection marked.
3 axis modular High current design Driver 38V x 3.5A, (optional 4 axis, + £)
4 x motor output connector + 1 x Aux connection cable connector
350W ( 27V x 13A) switch mode high power supply
Special made dust free, splash proof Din connector with seal cap.
Selectable micro-stepping, 2,4,8,16,32,64,128,5,10,20,25,40,50,100,125
Selectable current: 1.3A,16.A,1.9A, 2.2A, 2.5A, 2.9A, 3.2A, 3.5A
All break out board and driver connection is Terminal block style. Easy
modification and wiring, schematic included.
High current switch mode power supply.
Dual dust filtered driver cooling fan
Front panel reset/emergency stop switch
Front panel power switch
Quality Compact Aluminum chassis, with bench feet.
All driver sinput are opto-isolated to the computer.
Stepper Motors

28V/3.5A, 1.8 Deg 192Oz/in torque high power dual shaft stepping motor.
Custom splash/dust proof din connector.
Dual shaft motor for optional encoder for DRO. ( we sell the match encoder) with pre-tapped 19mm x 2 M2.5 mounting hole.

16
General Mach Discussion / Control box broken ??
« on: January 12, 2009, 06:17:57 PM »
I have had a new machine for a couple of weeks and although two of the stepper motors ran nicely the third has always made a grating sound like a very worn bearing might. I decided to look into this as the sound was getting worse and worse. I checked that the axis ball screw was free when the motor was removed and this was fine. I then connected the motor of the suspect axis (z) to the Y connection on the control box and it ran smoothly using the Y buttons on the keyboard. I then thought lets connect it to the X axis terminal and see if that will work. Well it did not and now only the Y axis terminal on the control box works at all but it does spin all of the motors smoothly. Does this sound as if the control box (2 weeks old) has gone faulty or is there a reset option inside the box for each axis in addition to the main one which does not change anything. Could it be the parallel port cable at fault or is there something else it could be. Before it failed completely any motor I connected to the Z terminal sounded very rough. I have tried shutting everything down and re starting but still only have the Y terminal working although the computer thinks that all three axis are movable.

17
General Mach Discussion / Re: New Cutter Comp code and Examples
« on: December 22, 2008, 05:40:02 PM »
No probs Brian, where there's a will there's a way.

18
General Mach Discussion / Re: New Cutter Comp code and Examples
« on: December 22, 2008, 04:39:16 PM »
Hi Brian, I think I have now figured out how to get around my problem. I will be using a grinding disc of around 25mm diameter x 3mm thick which will be dressed to a 1.5 convex radius on it diameter. Thinking about it all I need to do is program the path of the centre of the 1.5 rad to produce the required shape using the X/Z axis without comp but have this tool controled by a second work offset that will be the distance between the centre of the 1.5 rad and the centre of the wheels spindle. This way if I need to dress the wheel I can reduce this second offset by half the amount I reduce the wheels diameter by. Then all the various programs will not need to be re done when I dress the wheel.

19
General Mach Discussion / Re: New Cutter Comp code and Examples
« on: December 22, 2008, 04:03:11 PM »
Surely if you want to cut a 0.25 radius with a 0.5 cutter all you need to do is take the cutter to the radius centre point and feed down to the required depth.

20
General Mach Discussion / Re: Tool information not displayed.
« on: December 22, 2008, 12:31:36 PM »
The re load has worked with tool number and its dia+length now shown in the display. Thanks Hood and everyone for trying to help.

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