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Messages - jimthefish

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291
General Mach Discussion / Re: Spindle drive problems.
« on: April 24, 2010, 03:03:27 AM »
Hi Hood, I think the Lynx board has blown but not sure. the link for the manual is
http://www.transdrive.co.uk/dc-drives/control-techniques/lynx.asp
Mach3 is linked via a Breakout board and spindle card from http://www.diycnc.co.uk/html/system1.html  its the system 1 breakout board, scroll down and it shows the spindle card attached, the manual is on the same page. Been in touch with the inverter supermarket and they say there is a equivalent replacement it the SSD 512C rated at 6amps so might just go for it. Jim

292
General Mach Discussion / Spindle drive problems.
« on: April 23, 2010, 02:19:22 PM »
Those who have been following my trial and tribulation converting my Denford Triac to run with Mach 3. Got it all working except the spindle. I'm using a spindle drive card supplied by DIYCNC and have wired it up to the LYNX spindle drive system on the Machine. I have check to make sure the LYNX internal relay comes in, IT DOES. However cant get the spindle to rotate, I don't seem to have a signal out from the OUT and 0v pins. Should I have a low voltage or a pulse to control the speed. there is a 12v connector on the DIYCNC spindle card do I need a connection to this to get a voltage or am I wrong. HELP please.

293
General Mach Discussion / Re: Doing or done something wrong
« on: April 08, 2010, 11:58:51 AM »
Hi Hood I think I have set something up wrong. I wrote a short program up on my computer in the house, saved it and loaded onto my workshop machine. it was written with a g21 at the start. The machine did it but in imperial, looked at the Native units they are set at metric. I think I must have confused the machine when first linking it up to the computer. It said something about designating the units and not to use it for changing from program to program , I must have pressed the worng button, will redo the setup. Thanks to your efforts over the past couple of weeks got everything going, so not too worried, I konw it all works so its just a matter of tweeking it somewhere. PS Done the spindle with the aid of Roy at DIYCNC again it was a simple wire in the wrong place. That sums me up SIMPLE, good practical engineer, but usless at electronics.  cheers mate

294
General Mach Discussion / Doing or done something wrong
« on: April 08, 2010, 10:17:51 AM »
Hi Just finished setting up my Denford Triac, got it running with Mach3. Go a problem which I think is a setting problem. In MDI I ask the maching to move 10mm and it does it in all axis, showing 10mm on the display. Write a program or call up a wizard asking for metric units say to do a 10mm move  and it does not move 10mm it moves a very small amount which shows on the display as 2.4 something but the machine completes the full program. I have asked for metric in the program before starting, what have i done wrong, is the machine confusing metric and imperial when interpreting the programming? Or have I set one of the setting wrong when linking the machine to Mach 3.

295
General Mach Discussion / Re: Triac spindle drive
« on: April 04, 2010, 01:13:22 AM »
OK sorted, simple only needed 4 connection thanks to the spindle drive card supplied by DIYCNC, cheers Roy

296
General Mach Discussion / Triac spindle drive
« on: April 01, 2010, 11:33:14 AM »
Those following my threads know that HOOD has been helping my solve problems replacing my old Denford Triac Mill electronics. I'm on the final bit, the spindle drive. Anyone help, the spindle motor is a Lenze 0.75kw 180v motor and the drive unit is a LYNX 08 all 1990 electronics. The problem is I have purchase a spindle drive card that fits into a system 1 breakout supplied by Roy at DIYCNC there is a 12v relay connection on this board that energises the lynx unit. Unfortunatley Denford electronic diagrams never follow the correct colour coding so I'm struggling to make sense of the wiring. I konw I have to energise the relay then pulse the LYNX system to rotoate the spindle. Can anyone help with how to wire the unit up. As mentioned in previous threads if it aint covered in oil or grease I don't understand how it works. So can you keep it simple so that an old engineer like me understands.

297
General Mach Discussion / Re: stepper drive cards.
« on: March 30, 2010, 03:33:07 AM »
Cheers, Hood will have a look.

298
General Mach Discussion / Re: stepper drive cards.
« on: March 30, 2010, 01:56:48 AM »
Hi Hood can you tell me how important it is to set the switches on the drive cards to 1600 steps per rev. I know its controls the accuracy but wondered what effect the higher steps selection has on the motor and the drives. The reason why I ask is that the 5 amp maximum drives cards are running NEMA 34 motors and was told not to load them at maximum as that is near the top of the 5 amp limit  (what ever that means?). I have set one them to what you recommended 1600 per rev and left the others on the settings that the drives came with 25000 per rev at the moment. There dosen't seem to be much difference in the action and sound of the axis moves. So just wondered why there dosen't appear to be any noticable diffence in the table actions and what will be the affect on leaving them on the higher setting. If i'm talking jibberish only this is my first step into electronics, I'm an old egineer (65) and if it aint got grease or oil on it I don't understand how it works.

299
General Mach Discussion / Re: stepper drive cards.
« on: March 28, 2010, 11:44:06 AM »
Cheers Hood, I've upgraded your medal to a knighthood. Thanks. Watch my posts I'm going to tackle the spindle drive, bound to have problems with it. Cheers Jim

300
General Mach Discussion / Re: stepper drive cards.
« on: March 28, 2010, 11:29:13 AM »
Hi Hood its Jim again in Birmingham, Just had a go at setting the x axis I left the dil pins on the steppers at the setting they came at, adjusted the velocity to about the same as the speed with the Denford electronics. Did the calibration and it came out with 800, acepted it and tried it seems OK. Does that make sense. It the settings on the stepper card that i'm not sure about this is the stepper card im using

http://cgi.ebay.co.uk/Cnc-5-6-A-Bipolar-2ph-hybrid-Micro-stepper-motor-drive_W0QQitemZ320507138790QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item4a9fb6d2e6.

aint touched any of the dil switches do i need to set them, PS the X axis moves sweetly.
Jim

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