[bit pusher]

I've seen videos on youtube showing the IH mill running 6k or 9k rpm, Im primarily cutting wood with mine and would like to get faster spindle speeds.

Where can one get the belt-drive conversion for the IH mill?
Does the manufacturer have a website or contact number?

thanks for any advice

[vertcnc]

Most everyone made their own but I believe Dave "Arizonavideo" makes a kit, PM him.

[bit pusher]

Thanks. I just tried to PM him, but his mailbox is full.
I'll try again this weekend!

[arizonavideo]

I cleared out the mail box and I am making the belt drives.

The 9000 RPM video was just a high speed test, I don't think it is something you would want to do for a long time. It was a bit spooky just standing next to the mill thinking what might happen if the whole thing came loose.

6k all day long looks OK.

Thanks
Dave

[arizonavideo]

oops

[cncadmin]

Any pics or more info on this?

[arizonavideo]

I think the OP was talking about a video I did testing the top speed of one of the belt drives that I made. I really don't think the spindles should run at 9000 RPM because they do make a fair amount of vibration at that speed and if something broke loose at that speed it really could be bad.

The video is here. 9000 RPM Test - YouTube

I posted a good amount of pictures here. arizonavideo's's Library | Photobucket

[jetflatline]

Started assembling mine today

new motor for the cnc mill | Flickr - Photo Sharing!

[jetflatline]

Got sidetracked on another project and finished the assembly yesterday. It all fits nicely, but I've never taken apart an RF-45 head before, so it took me the better part of a day to finish. I'm also swapping out the motor to a metric size and Dave was kind enough to make a metric sized fitting. It all looks and feels good, but I need to build the 1ph->3ph converter and VFD before I can test it at speed.

[Fastest1]

Are those zip ties holding the drill press to the table?

Started assembling mine today

new motor for the cnc mill | Flickr - Photo Sharing!

[jetflatline]

Are those zip ties holding the drill press to the table?

Ha, yes, they are. When I went to bolt the drill press to the table I discovered I had the wrong length bolts. I put zip ties on it as a better-than-nothing safety until I went to the hardware store for more bolts.

[Nigel Tufnel]

Please posts some pics of your installation if you get a chance. Thanks.

[Charter Oak]

For argument's sake, the two are not compatible. I had completely neglected the fact that you have the Mach1 system when I suggested the belt drive. That being said, in order to use the Mach1 with the belt drive you would need to fabricate a "bridge" over the spindle pulley for the actuator cap to mount and then shorten the cap by the height of the bridge. We haven't experimented with it yet, but I don't see why it wouldn't work.

[ksanalytical]

All,

I've been running ArizonaVideos belt drive for a few years now and I can say without a doubt that my machine would not be in use at all without it. It's truly been night and day where before I'd sit next to the machine and count the seconds it had been running at 3K rpm. Now the only thing I stress about is the coolant running dry during a run and I don't worry about that much. As far as the V-belts go... Yesterday I managed to drive a 2.5" face mill right into my soft jaws. It completely locked the spindle and let out a deafening scream. It was the belt slipping on the pulley. If I'd been using a timing belt, I'm guessing it would have snapped, or worse, spun the spindle around my tool holder until I came out to check on it. The V-belt saved my bacon once and it probably won't be the last time. Just my $0.02.

Ken

[Bob La Londe]

All,

I've been running ArizonaVideos belt drive for a few years now and I can say without a doubt that my machine would not be in use at all without it. It's truly been night and day where before I'd sit next to the machine and count the seconds it had been running at 3K rpm. Now the only thing I stress about is the coolant running dry during a run and I don't worry about that much. As far as the V-belts go... Yesterday I managed to drive a 2.5" face mill right into my soft jaws. It completely locked the spindle and let out a deafening scream. It was the belt slipping on the pulley. If I'd been using a timing belt, I'm guessing it would have snapped, or worse, spun the spindle around my tool holder until I came out to check on it. The V-belt saved my bacon once and it probably won't be the last time. Just my $0.02.

Ken

Well, here is another 2¢ worth. Connect the trouble output from your VFD to the E-stop circuit. Then program your VFD to fault at just over peak current demand of your motor at full load. Then instead of screeching a belt it should just stop the machine. Of course you have to have a big enough belt and enough belt tension to be able to spin at full load. Nice thing about that is even at slower speeds where your motor doesn't have the toque it will cause it to fault instead of doing a poor job of cutting due to motor slip or worse. Fry your VFD.

I know I said I stalled a 5HP motor, but I'm guessing the belt had no issue handling 5HP. Or more likely 4HP since that's all the VFD would support on single phase input. They must have picked one rated for it. I hooked up the fault output after that. LOL.

[RustedOut]

I studied some of the commercial mills while I was doing the design of my belt drive, Bridgeport used timing belts on some models, while Fadal used v groove belts on the ones I found info on. My original design, I was trying to emulate Fadal on the use of two belts, one slack and one tensioned. I gave up that idea after deciding to just overspeed the motor and that required only one ratio. But I kept the v groove belt. I guess time will tell if that was a good decision, but I have no worry about that selection.

Bob

[ViperTX]

I got my belt-drive kit for my MD001 from Dave. He does excellent work and I would highly recommend him!

Paul

[arizonavideo]

Tony:
I received your PM about wanting more info about the a belt drives but it says you don't take incoming messages so you will need to change that or give me a different email so I can contact you.

Thanks
Dave

[jetflatline]

Forgot to post the photos, there's a couple on my flickr account: pulley mount on my IHCNC mill | Flickr - Photo Sharing!

[Randall]

SO DAVE
do you sell these?
Randy