Great that you take your time sharing the process of going trough all the details of hunting and trying to figure ot the error failures

Great to see the Fadal taking shape mate. They are a brilliant well built CNC milling machine.

@bgwmachine

5 жыл бұрын

DCTTeacher1 thanks Aaron!

When checking backlash you need to be checking along the travel of that axis to see the wear at different points along that ball screw. The way you appear to be checking Y is by moving X which is only going to show you the backlash at one point in the ball screw

Found your videos on my search for some fadal personal training. Thanks for sharing.

It's probably throwing the other resolver error because you unplugged the cable. Probably an easy way to figure out what card is what axis is to e-stop the machine, and pull the cables out one by one, and see what axis throws an error. Plug it back in, clear the errors, then unplug the next one. I just bought a cnc machine myself, though a mitsubishi based one. It had a dead spindle drive, which I fixed for $50 in parts (quote the previous owner had for fixing it was $3k!! Yikes). Now I _only_ need to finish cleaning it, fix a problem with the lube system, change the spindle motor bearings, change the spindle bearings probably, move it to it's final location, and level it... so I might be making chips in 2022 :-P Also, I see basically everyone using rotary phase converters with these machines. With the way the spindle and axis drives work, your wild leg on the phase converter is probably pushing the DC bus voltage up higher than it should be. If the machine isn't throwing errors, ok, but it does put extra stress on the IGBTs and the bus capacitors in the drives. I converted my "3 phase only" spindle drive to single phase - it takes some doing, but probably a better solution overall.

Being able to talk to the previous owner and getting some history on your machine is fantastic. I commend your tenacity, I was freaking out just looking at the error codes! 😂 BTW, your paper manuals are a great idea. Got any ideas how easy to find those resolvers are, and what the cost might be? Just curious. Ciao, Marco.

It looked like you were doing the Y backlash - at different X table travels. You actually want to do the X backlash at the left, center and middle of its travels........this setting is to look at the backlash at the different positions in travel because they wear differently especially (usually more) in the center. Love the work your doing on this! I have a VMC15XT. Preserve the FADALs!

Compelling for sure. Thanks for the video!

@bgwmachine

5 жыл бұрын

Phillip A thanks for watching!

Was there a resolution on the resolver(s)? Your fans are waiting (im)patiently! It's fun to watch your work (again). Good luck and don't hesitate to contact me for help.

@bgwmachine

5 жыл бұрын

Thanks Sean. I had some personal stuff I had to deal with so I'm been a little preoccupied and not out in the shop - should have a few new updates soon though. Stay tuned!

Keep in mind on an older machine the first place to hunt down backlash is the ballscrew thrust bearing, a simple cheap(er) replacement that can really cut down the slop.

@bgwmachine

5 жыл бұрын

Thanks Greg! I'll keep that in mind. Using the troubleshooting guide and seeing the errors I was getting, I'm starting with the resolvers (or atleast start looking there) but will definitely keep the thrust bearings in mind when I'm doing any maintenance as a result.

hello, i have a fadal 4020 and i need to replace the bolts with the nuts, i have seen that most of the fadal come with NSK bolts, is there any other brand that can be used?

I had a similar issue with our plasma table when jogging at high speed it would sometimes just jump forward fast and throw a motor overload error if we turned the max jog speed down it didn’t seem to do it but it ended up being a voltage regulator

@bgwmachine

5 жыл бұрын

faballnorth thanks for letting me know. I’ll keep that in mind as I go forward!

hola donde puedo conseguir el manual que estas usando si lo puedes compartir estaría muy agradecido Gracias

Do you have the maintenance manual in pdf or in some other format and could you send it to a fellow machinist.

@bgwmachine

4 жыл бұрын

fromdolenjsk I’ll do one better - go to FadalCNC.com/tech-docs - not only is the maintenance manual there but allllllll the manuals you’d ever need for a Fadal machine are there. 🤘

Since your Fadal is a linear machine does it not have gibs and straps?

@bgwmachine

5 жыл бұрын

Matt Fuqua yep! No gibs!

how'd you deal with your "floating" issue? We have a FADAL with that same problem.

@bgwmachine

4 жыл бұрын

Matt Fischer for me (if I remember correctly) it was fixed when I replaced the resolver.

@matthewfischer

4 жыл бұрын

BGW Machine our floating issue is happening an all three axis (XYZ) . Did you swap out resolvers on all your drive motors?

@bgwmachine

4 жыл бұрын

Matt Fischer I replaced just my X and Y resolvers

I'm so jelly.

I like these types of vidieos, but when setting backlash take-up, your machine should be basicly set up with the weight of the job you are running. Ball screws are made with a pre-load, meaning that it takes a certian amount of force or poundage is required to turn the screw. Ball screws are made with 0 backlash depending on the application. With an empty table setting backlash is not as accurate as setting it with a table load of say 750 lbs. on it. Do your home work if you are looking at doing extreme accurate work. I've been a cnc machinist for over 35 years and owned at one time 4 fadals.