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Wrong, on the old drives it's 0-5v analog with a direction pin. Probably intended for potentiometer use. It could be worked around in linuxcnc, but it's apparent that these weren't intended to be...

I have several complaints about DMM, but one of them is that mine are difficult to tune. I have legacy dyn2 drives that do not have encoder output, so it's hard to tell what effect changing settings...

Spent quite a bit of my time actually running the mill, not working on it. But here's a little update on what has happened and some of the parts made.

First, the mill all came apart for a couple...

I need to get around to finishing mine (the blue one in the original post).

For mine I'm using an Arduino mega sending simple serial commands corresponding to button presses. I'm using Linux CNC,...

It's worth a shot, but the replacement nuts might not fit. I bought a second nut to double nut one of the screws I already had and it was nowhere close to fitting. I had to go from .125 to .118 balls...

I'm having the same problem. I've given up for the time being, but it may be worth emailing the web master.

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Alright, what you need to do is 'hook up' your limit switch signal to the homing signal pin in HAL. If you look in the hal (and familiarize yourself with the format) you can see that 'both-y' is...

Yes, can you post your .hal file as well? It should be in the configs folder in the Linuxcnc folder. It sounds like all you need to do is 'hook up' (in the software) your limit switch to the software...

Homing is certainly required to use soft limits. You must home first to establish where the machine is along it's travel (where it is relative to g53 origin). Then the lengths of travel for each axis...

Sorry, I assumed you were a bit more familiar with Linuxcnc. It may be worth skimming the 'HAL manual' and 'integrators manual' which should be easy to find via Google.

What homing does is moved...

You can either set your limit switches to shared home/limit switches in HAL or tell it not to require homing. Adding 'NO_FORCE_HOMING=1' to the [TRAJ] section of the .ini file will accomplish this....

I've contemplated a similar oiler. Similar to a Scani valve used in wind tunnel testing. No metering valves would big benefit. And if designed right you could even do away with check valves. Downside...

Have you read this:

LinuxCNC Documentation Wiki: ToolChange

It summarizes the LinuxCNC signals for tool changes, which Path Pilot presumably uses. Even if Path Pilot uses some other...

That pulley looks to be phenolic. Where'd you source your grinding wheels? I'm looking to build something similar.

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Carrying on with the panel mount:

I now needed to make the plate for the top of the panel and attach it to the steel panel mount. To start, I cut the top the flanges off the top of the panel mount...

Sorry for the delay, these updates take quite a lot of time and I've been devoting that time to the machine lately.

Carrying on with the panel mount:

To clear the panel mounting screws, I...

50mm seems a bit small for the spindle nose. Have you thought about your dog configuration? I'm attempting to replace an r8 spindle shaft with a bt30 one and had a similar problem. Here's the spec I...

Just a teaser, full post to come soon.

302840

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Yeah, I really should build something like this. I also need a better guide for cutting straight lines. Currently, there is a small standoff made from .080 or so wire designed to keep the tip off of...

I tried a hole saw first, but the only big enough ones I have are cheese grade steel meant for wood. It dulled out very quickly. My drill press also spins a bit fast for hole saws, oddly.

I'll...

Short update:

Here's the enclosure:

300896

Not much to say and I must not have taken any other pictures. It was plasma cut (by hand, the last thing I need to start right now is a CNC plasma...

Red Green style, eh?

It worked for the dry chips, but I think it'll get a bit soggy with coolant!

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It's been a little while and there is a little progress.

I had a couple parts to run for a friend, so I got the mill back in shape to make parts. The first step was tramming in the head. I started...

It took several calls before they finally shipped my order after 3 weeks. No reply to emails. Their excuse was that they had big Oem blanket PO's. That tells me they have little idea how to run the...

I'm running my servos closed loop in Linuxcnc. Basically, Linux measures the axis position, calculates the positioning error, and adjusts the speeds of the motors in real time to ensure the machine...

Credit where it's due, I borrowed the design from one of the rf45 builds. The tray on mine is quite poorly welded and if I were to do it again I'd take the flat section out of the bottom of the vee...

Another month has passed with less done than I'd like. It seems like I've spent this entire month fighting various companies. Here are the experiences I've had:

DMM-Tech

Ever since I've had the...

Yes, Azle is quite a drive.

What are you running for control software? You should verify that the motors have encoders and not resolvers, since I believe the g320 drives only work with encoders....

I was planning on looking at it last Sunday, but you got there before me. That single board set up scared me though, so I wasn't going to offer much. If it had individual servo drives it would be...