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I"m looking to drive a power feeder -a typical woodworking power feeder. An 18 volt brushless motor cordless drill works just about perfectly, except that the switch (trigger) is awkward to lock...

My shop built Mach3 system built about 6 years ago has developed the bad sporadic habit of starting the spindle at random moments. This could be dangerous, as I previously did not unplug the spindle...

I just received some used NSK linear motion rails with LAH30 trucks. They are much stiffer than the small IKO and THK rails and trucks I"ve used before. They are also much bigger --full 26 x 28...

Thanks, that's great to hear. Yes they are square rail NSK bearings-- these: eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices
t hat came from a big...

I'm renovating my moving table, fixed gantry cnc router to get a few more inches table travel. I"m wondering if it's a bad idea to mount them upside down to the usual, with the trucks fixed to the...

I need to mill .04" x .25" slots, a full .3" deep in ebony. Requires long reach .04" cutter. Expensive and fragile. I'm assuming I want 2 flute rather than three or four? And maybe coated if...

Every now and then, as in maybe every 100 hours of use, but very eratic, my z axis goes haywire.Especially apt to happen when machine is first turned on. Especially during jogging operations. It'll...

I'd love to hear a report on these 3 and 4 KW guys.Air cooled would remove some of the the hassel and worry of the Chuinese spindles, and many of us really need the ER 20 collet, if not the power,...

Thanks for all that info. The job is just at proposal stage, so let's hope he doesn't freak out at the price. Wants an all ebony box with hard gloss finish. Will let you see results iif its a go, or...

I'm looking to do some silver inlay work. I'm experienced at doing inlays in wood, including very hard woods like ebony, but I"m not sure how to go about working with silver, or if it's possible. I...

So the bearing price makes it clear we're talking disposable spindle.
The spindle failure was precipitous. The spindle suddenly was making a funny noise as it cut. The nose could be manually...

My first spindle was easy to keep cool. I used aquarium pump in a gallon bucket. water got warm after awhile, but spindle never got hot. i couldn't quite get the recommended flow, the specs of...

J still has to actually remove those bearings.....

Thanks so much for doing this! I bought this one from linearmotionbearings, I believe guys call him Chai, who has never made claim of German origin bearings, but one should certainly be skeptical...

Only here would there be people fighting over a spindle just described as beyond repair... (By the way, sold, to DIYengineer). Well, here are some photos. They don't show a whole lot, I'm afraid,...

Not clear that one can replace the bearings even sloppily. The motor guy gave up on getting it completetly apart, and there are many steps to go before disassebly would be complete. Now maybe some...

So the local motor repair shop, which is very good, was unable to repair my 2.2 kw Chai obtained spindle, which experienced sudden bearing failure after a year of light professional use. He said...

I just noticed that Keling described his as "grease lube". I have never lubed mine --stupid I guess, though I dont see how you'd get access to bearing on collet side. I also just saw these --...

It's funny, just yesterday moning I was spinning the collet by hand and admiring how silky smooth it still was. It was some fluting work with deep plunges that preceded the failure, but I do some...

The bearings, or at least one (the top) failed quite suddenly today on a 2.2 kw Chai (linearmotionbearings) ebay spindle. Anyone managed to change bearings on one of these who could give me some...

My 2.2 kw spindle from Chinese ebay vender has just has a bearing failure after a year of part time use. I'm wondering if anyone has successfully changed these bearings, and can outline proper...

After 100's of hours of flawless performance, my shopbuilt machine has developed a glitch whereby it, every so often, at 10-40 minute or so intervals , misses a z axis command. This may also...

thanks for help. Solution 1 works pretty well, but necessitates 2 cycle start hits between cycles, and maunual changing of each program. #2 which I had tried and couldn't make work, I didn't try...

I have a short program I would like to run over and over without having the spindle stop, to eliminate the ramp up wait, and save on energy costs by not constantly starting and stopping (it's about...

I basically agree. The one problem with the ones on Ebay now (I have one) is the connectors call for 3/16" id tubing, which is pretty small. The passage through the spindle is a significant...

I'm wondering about the parameters for water cooling. The number 8 gallons of water per hour has been thrown out, (perhaps via Homesshop CNC's spindle?) but doesn't this depend on the starting...

After about a dozen calls to various Hitachi VDF folks, finally a rep in Chicago suggested changing a parameter (A44) from "intelligent sensorless vector control" (the default, apparently bad for...

I wrote both Drives Warehouse, and Wolf Automation, and gave them all the motor parameters. They both recommended the drive I got, based on the 8 amps. I specifically asked the guy at Wolf about the...

I'm running the 24,000 RPM 2.2 KW , 400 HZ, 8 amp 220V spindle from Chinese Ebay vendor, with a Hitachi SJ200-015NFU VFD with single phase 220 input. I solved the deceleration trip problem I was...

OK, wiring this relay http://cnc4pc.com/Tech_Docs/C15-DUAL_RELAY_BOARD_Rev1.pdf to start and stop spindle via VFD, At the top of the drawing where it shows wires heading to the device, what...