Posted: Mon 22 Jan , 2007 14:55 pm
Hi
Sorry for the delay in getting back to you - I've been working on a major overhaul of my cnc mill (re-machined ways, fitted ballscews etc) so I haven't had much time outside working and sleeping!!
The way I started my conversion was to get a single axis going. In the downloads section you will find a manual for the SD2 in there (viewtopic.php?t=561).
Look at pages 35-37 of the manual. The important connections you need are direction input and clock input. Trace these back from the driver to the terminals on the top processor board and mark them. You now need to get hold of an opto-isolator board to protect the PC. This is not essential but highly reccomended. I used an old model of board from CNC4PC. Then build a built of stripboard with the circuit to interface the drivers on that I posted earlier. Once that is done, hook it up the drivers and the optoisolator board - get a PC and see if it works. Make sure the e-stop is released when you try it!
Be extremely careful as you will need to do this with the case open and the power live. Ensure all connections are isolated and do not touch anything. This is basic advice and as such, you should ensure that the system is connected correctly and safely. I accept no responsibility for injury or damage to equipment caused by following these basic guidelines.
Cheers
Dave
Sorry for the delay in getting back to you - I've been working on a major overhaul of my cnc mill (re-machined ways, fitted ballscews etc) so I haven't had much time outside working and sleeping!!
The way I started my conversion was to get a single axis going. In the downloads section you will find a manual for the SD2 in there (viewtopic.php?t=561).
Look at pages 35-37 of the manual. The important connections you need are direction input and clock input. Trace these back from the driver to the terminals on the top processor board and mark them. You now need to get hold of an opto-isolator board to protect the PC. This is not essential but highly reccomended. I used an old model of board from CNC4PC. Then build a built of stripboard with the circuit to interface the drivers on that I posted earlier. Once that is done, hook it up the drivers and the optoisolator board - get a PC and see if it works. Make sure the e-stop is released when you try it!
Be extremely careful as you will need to do this with the case open and the power live. Ensure all connections are isolated and do not touch anything. This is basic advice and as such, you should ensure that the system is connected correctly and safely. I accept no responsibility for injury or damage to equipment caused by following these basic guidelines.
Cheers
Dave
It's an old school machine and even comes with a pad of orginal denford programming sheets.
I would HIGHLY reccomend that starturn owners check this and seal the hole if needed. It's only a matter of time before swarf gets into the electronics and lets the smoke out!