Search:

My mill came with an IPC-5 and runs 2 of these for XY and one of these for Z. As far as I know it's been working properly so far. I don't think I've had any issues that weren't caused by user error...

I have clearpath servos on all 3 axes. I bought my mill and they were already on it. I did the math of the mill + the components and it turned out to be a pretty good deal largely because of the...

Occasionally at work we get some parts that are great at filling up the machine with some big aluminum chips that has to be emptied every hour or so. Always fun. Constant spindle turning time though...

I agree that going over the top on a G0704 isn't necessary and one reason I want to keep the oiling super simple. Honestly unless it becomes an actual problem I probably won't bother adding oil slots...

Thank you! The links especially were super helpful. I have no idea how I would've found those fittings otherwise. I've used something very similar for a watercooled PC build but didn't know them by...

I'm mostly just looking for ideas on how I should plumb mine up. Ideally I'd like to use one of those simple little pumps and have it oil all 3 axes and 3 ballscrews at once. I'm sure grease would be...

Have you shown/detailed the plumbing on your oiler setup anywhere? I have my mill apart to lap the ways and repack a couple ballnuts before installing my spindle upgrade kit and figured now would be...

I also struggled a bunch with getting the gibs just right. I had real bad and unexplainable chatter issues when cutting steel in certain directions and the first thing it led me to was the gib...

Honestly glad (in a way) to hear that I'm not the only one who thought the preload nut was super touchy. I've spent soo much time reassembling the spindle trying to get the perfect balance.

I think I'm about to pull the trigger on a 3 phase AC motor/VFD combo. For a really long time I tried to get a 1HP servo motor to work but I've never been able to get it to work or tuned properly so...

Which is relatively understandable, given it's hardened. I'm trying to cut 1045 steel which shouldn't be an issue at all given the recipes I've tried. I took some video of it cutting but it really...

Over the last few days when it hasn't been ridiculously hot out I've been messing with it some more. For some context I have clearpath servos on all 3 axes so they have to be tuned/autotuned.

What...

So the issue is pretty much exactly as the title says. I only noticed this as I was having issues cutting steel (MAJOR chatter even in light cuts) and I took apart the table to try and see if...

My go to cutting recipe for 3FL 1/4" and 3/8" endmills are 5000 RPM and .003ipt at 1x diameter depth and ~20% stepover. I did once forget to add a multiple depths pass and a 3/8" endmill took a 5/8"...

@mcardoso

Thanks for the detailed explanation. I do actually have a little bit of experience PID tuning with racing drones from a couple years ago. However that knowledge is limited to how...

@mcardoso

Yeah I know the drive will throw an alarm if it gets to a dangerous temp. I'm using analog as my controller only accepts analog or PWM and the DYN4 only outputs to analog out of those...

@mcardoso

I ran mine the other day for over an hour at just under 5000 RPM, can't remember the exact time, and the spindle was MAYBE warm. The servo was pretty damn hot though. I couldn't find my...

Weird the Y doesn't do it, maybe because it's over a shorter distance? The person who had a problem with the spindle probably had an EMI issue that was messing with their steppers. That's happened to...

I'd put my money on it being backlash, especially if it's inconsistent. I typically see that backlash comp shouldn't be used for that much backlash but I may be wrong. If it's inconsistent than I'd...

@rcheli Those settings are about what I could handle too. I was able to get the speed and main gains to 30 but I might back them down if there is a heat issue. I'm jealous of that linuxcnc feature...

@maxspongebob I'll get some video tomorrow once I can also try out a 3L belt. At just under 5000 RPM it's at about 85dB which isn't bad considering all my measurements before were at 3500 RPM. I...

@rcheli Is velocity mode also called “speed servo?” That’s the closest I could think of to a velocity mode.

I have no intentions for needing a fast accel/decel so I think I MAY be alright there...

@mcardoso Oh interesting, didn't realize it was PID tuning. I actually did a little bit of PID tuning with racing drones a couple of years ago. I remember how a lot of those settings work but only to...

@rcheli Did you autotune your servo or manually tune it? This is what I'm looking into next since everybody seems to have pretty quiet motors.

@mcardoso I think you're right about gains. Are you also using a DMM servo? The DMM ones like I'm using have an auto-tuning feature and I definitely noticed a difference between redoing an autotune...

I assume you're trying to use it for a spindle motor too? You'll want to use 0-10v analog control to control it. I believe that's the only way you can use the speed servo setting (high RPM) with the...

It's a DMM servo motor, .75kw. Both the original motor and servo motor feel relatively smooth. The original BLDC feels smoother with less resistance but I would think the servo shaft should naturally...

@CL_MotoTech 81dB is beyond reasonable while cutting. I'll be able to see exactly where I'm at once my new pulleys arrive. My guess is it will be about that NOT cutting but we'll see. My servo motor...

A good portion of the noise at this point comes solely from the motor itself. Running the motor dry with no pulleys it was something like 75dB which is pretty reasonable. I don't know exactly what to...

Ok so quick update:

Bearing preload had a lot to do with the noise and 100% of the axial and radial play I had, just as I'd thought. There was a tough spot in the preload nut's threads (or on the...