Light Machine Corp. Benchman XTr (retrofit)

I've never been able to get my ATC to work, so I can't offer any help there. I have the same boards you do, and I've never looked into setting up the probe. I like your LED lighting inside the enclosure. Did your XT come with a coolant pump? Mine didn't and I'm thinking about putting one in. Do these machines have some kind of integrated sump in the bottom? Is the pump just located in the corner of the enclosure?

Your hardware can support the tool probe, but getting the software to use it is the issue. As I recall, it was an option that was enabled in the software if you paid for it. I have no idea on how to enable it. But the hardware is easy. A simple switch closure on J530 along with a jumper on the same connector will provide the asynchronous interrupt signal to the nextmove card to immediately capture the X, Y, & Z positions. But without the appropriate software, I'm not sure how you can use that information. It is more difficult to get the signal through the backpanel without compromising the "watertightness" of the enclosure. We had chosen a location in the lower rear that was potentially right in the path of the flood coolant spray so we had to have "watertight" connections. I can provide more electrical information if required, but you will need to deal with the software side.

Pegasus,
If your machine was equipped with a coolant pump, there were some perforated panels that sat on the large rails below the polymer granite frame. The area below these panels became the sump. A Little Giant pump was located in this area and would supply the coolant to the flexible fittings for aiming. However, I also believe that the base enclosure may have been custom for the flood machines owing to the fact that watertightness was required. Look at the inside lower corners of the enclosure and see if they are welded beyond simple spot-welds.

Awesome! Thank you for the response. It looks like the J530 pin is right on the front of the main board but it's got 7 pins. Do you have any pinout schematics on what each of those 7 pins does? Also do you happen to remember the style of connector used on the board? I'd like to try wiring up a test to see if the pins are functional.

In digging through the Intellitek website it looks like the Benchman software is on there and available for download but I'm unable to install it in a way that allows it to communicate through the ASI slot. I'm thinking that I may try installing Windows NT on an extra hard drive and trying to boot my computer with Windows NT to install the software. My thinking is that maybe if I'm able to use a fresh download of the NT software that I can enable the probe functionality to test the pins since my Windows 98 doesn't seem to want to let the fresh install talk through the ASI slot.

I've attached a photo of the perforated material in the bottom of my machine above where the coolant pump is. It looks like the coolant pump is wired into J107 on the main board but I think if I had the opportunity to rewire I think I'd wire it separately from the machine controls because my machine sometimes faults out mid-cycle because of coolant pump issues. I haven't been able to track down exactly whats causing the issue so it's kind of a hassle some days. I've also attached a picture of a 2" face mill doing some passes in aluminum with the coolant on. I can see why the "waterproofness" of the panel was a concern as the coolant flies everywhere when she's on!

Thanks guys!

SOS:

Connector is Molex: 22-01-2077
Contact is Molex: 08-55-0105
Both available thru Digikey.

The circuitry for the probe on your machine is attached.

Try running the pump direct to the wall instead of through the machine.and see if the machine faults go away.
Let me know if you need further documentation or information.

I pulled up the panels on my XT and it looks like the sump beneath the table is water tight (there's a drain plug at the back of the machine). I guess the machines with the coolant pump option got screen floors and those like mine got sheet metal floors. Unfortunately, the previous owners of this machine used it to mill carbon electrodes and it was full of carbon dust when I got it. I had a spindle coolant leak a few months ago and a large quantity of coolant ended up in the sump. So when I pulled those panels up the other day I discovered a whole lot of black sludge down there.

Does anybody know what model of Little Giant pump was used on the XT. The sump is only about 4 inches deep.