@Paolo Liverani Hi Paolo, send me an email on the address I have under About. Cheers, Jake

cnc need controller use only small current, need external SSD relay not broken small controller own relay, working well spindle start/stop if use big external relay and controller small relay only give control signal to external relay. and some modification can use mach3 or linuxcnc PWM speed controller too in computer display.

Thanks, it's not too bad as long as you are careful with the potentiometer and the connections. You could mount the whole power supply and potentiometer in a plastic box (or a metal box where you connect the box to earth ground) with some connectors, that is what I am planning to do. Alternatively the cheapest way to get the power supply isolated from the mains would be to add an isolation transformer, but a 500W isolation transformer will probably cost $50-100, so a bit expensive unless you are lucky and find a cheap 2nd hand one. Cheers, Jake

Thanks, yeah I love my Migsig scope, it is really good, I am planning to do a full review soon, but I can say I'm very happy using it.

@@TheStuffMade Love sometimes is irrational thing and you are still not happy (rationally, in the morning usually) :-)

Hello Chris... just wondering where you buried the 300 watt brushless spindle you once teased us with. Please do a review on it. It would be very much appreciated! There isn't a single review of the brushless version that I can find. Cheers.

Weird things happen in betwenn ground and vcc when connecting different power supply... without wiring looks that the electrical noises get isolated.

Sounds like a good method to balance the fan wheel.

I pulled the fan, mounted it on a model airplane propeller balancer, added drops of CA glue to the inside surface (with accelerator) and got it balanced up perfectly

Hi, this spindle is less powerful than your Makita 3709 trimmer (I have the same trimmer) but I'd say it does well in most materials, but you might need to run it a bit slower than you would with your trim router. However when it comes to engraving and fine detail work, this spindle performs better than the Makita because it's got so little runout. I'd say if you are not in a hurry and you like a much quieter spindle then it's worth a try. You can always switch back to the Makita when you need more power for a project. Cheers, Jake

It's a good point, brushed motors do require some maintenance and it's best to replace the carbon brushes before they wear out, otherwise it could damage the commutator, I'd expect you can run it for several 100s of hours before it's needed. You can take the spindle apart and service it to replace the carbon brushes, if you can't find the right size, just buy some that are bigger and sand them to size. It might also be a good idea to change the bearings with some decent quality sealed ones while it's apart. Cheers, Jake

You have to use a relay. If your control board got a 12V laser output, then use that to drive the relay coil and connect the relay switch to the on/off on the spindle power supply. Make sure to use a protection diode in reverse polarity across the relay coil otherwise you could damage the control board. Cheers, Jake

Yes, I'd recommend grounding both the power supply chassis and the CNC machine itself. Cheers, Jake

Thanks, yeah perhaps if the spindle is stalled it will consume 500W before melting down. But I don't believe it's a 500W spindle, I compared it to a 500W Makita trim router and the trim router feels like it's got a lot more power. I'll probably do a short follow up where I'll attempt to do something about the vibrations, it would be a much better spindle if it didn't vibrate so much. Cheers, Jake

yeah the power consumption will go through the roof under a heavy load..... As for the fan, you could take it to a local machine shop and see what they'd charge for truing it up. It's a must because from the sounds in the video, it's bad enough to cause premature wear on the bearings.....

@@TheStuffMade no no no true, i has used makita router and de walt router small size and big router , makita 900W small router stall lot before than 500W air cool spindle, and 800W air cool spindle have lot lot more power than all router have, not stall speed if cut aluminium, router stall before than spindle motor.

I pulled the fan, mounted it in a model airplane propeller balancing stand and added drops of CA glue with accelerator to the inside of the shroud and easily achieved a perfect balance.

Yes if you get the version of the power supply that takes a 0-10V input for speed control then it should be possible, check 0:42 in the video. Cheers, Jake

It's hard to say exactly what the problem is but my best guess is a bad solder joint, try take the power supply apart, but please be careful, the large capacitor can hold a deadly voltage so make sure it's discharged and everything is disconnected from the mains. Then check for bad solder joints on the bottom of the board, especially the larger though hole components. Sometimes it's hard to see and it's a good idea to just reflow all the through hole solder joints. Cheers, Jake

you have main fuse too little, if spindle use free not use lot current but load and cuttung wood or metall current decline fast because have load lot more, you need change wires and main fuse biggest then not blow fuse. remember if change fuse biggest, need change this line wire gauge too biggest not burn wires. and house.

I didn't make a note of what PWM controller it's using and mine is all packed up right now as I'm in the middle of moving, but maybe someone else can help. Cheers, Jake

Hello, there is no ground on the power supply, but I'd recommend connecting earth ground to the metal case just for increased safety if anything shorts inside. Cheers, Jake

Yeah, I have a few of them, they're nice because they can stand on their own and they have these little knobs to hold round objects. I'm pretty sure I got mine from Aliexpress, try a search for "mini vice suction cup" that should return some results, they're cheap, just around $5 each. Cheers, Jake

@@TheStuffMade thank you, yeah mean while i found actually a few. Already ordered

This is the Seek Thermal Pro, it's pure thermal and got a decent resolution plus a very high temperature range. I'm quite satisfied with the performance. Cheers, Jake

It's called chatter, it's a common thing on CNC, Milling machines and Lathes. You can sometimes lower it by changing feed speed and rpms or try another bit with more or less flutes. However I think in this case it's mostly because the machine/material isn't stiff enough to prevent the vibrations.

@@TheStuffMade tysm

You'll need a much more powerful motor, probably at least 20-30 times the size for a 49" propeller depending on pitch. Plus the bearings and housing in this spindle are not designed for any continuous push/pull force. Cheers, Jake

Okay, thanks for replying back. So I take it you would suggest, not to put words in your mouth, a 220v or higher unit for this?

I get what you're saying but it's not even 3 pounds. I also do not need 5800 rpms on a constant or I hope ever if I can help it? Typically, 3200 to 3500 would be norm or possibly max. It's a carbon fiber propeller.

@@amc8118 I assume you mean the 3 lbs is the weight of the propeller, not the trust, I'd expect 100+ lbs of trust from a 49" propeller. I'd suggest looking elsewhere, usually small ultralight aircrafts using a propeller this size will use a gasoline powered engine with maybe 20-30 HP to save weight compared to an electric motor with batteries. Cheers, Jake

He has all 5 stars from this country. The propeller is $339.00. It's not a piece of crap and I've read carefully. Carbon Fiber is super strong and super light. Of course there's the mount etc. So probably 5 lbs in total. 2.866 pounds total propeller weight or 1.3kg. It's 49 inch 3 blade Carbon Fiber. This is why I'm asking. If this was wood or metal I already know the answer. If you pop in 49 inch 3 blade Carbon Fiber propeller you'll get the same result pretty much anywhere you look, as far as the weight. So now I believe you're understanding why I'm asking this question. If it was 100lbs I would never expect this to carry something like that? I'd check myself in somewhere if I was on that road. So for entire with screws and all necessary equipment let's say 10lbs to 11lbs. If you go back to my first message I mention the 3lbs I believe? It comes down to torque and rpms. I'm even putting solar panels on this plane to charge battery. 5800 rpm is max rpm for propeller. 100kg of thrust would be far more than enough. If I go over 100kg thrust I would be routing at 7000 feet or higher around a speed of 250 to 300 mph, the way this plane would be made. I'll show you plane design so you don't believe I'm out in LA LA Land more than you probably do already? Last thing, plane will weigh under 254 lbs empty weight. That means without me and the crap I bring along.

A common mode choke and a couple of capacitors will lower the noise going back out in the mains and perhaps grounding the chassis might help, but to really get rid of all the noise would require a lot of work. I'd recommend going with a different spindle/power supply if the noise is an issue. Cheers, Jake

Hello, first make sure your CNC is connected to Earth Ground (including the CNC controller board and the Spindle power supply), that might solve your problem with crashes. Alternatively you could power the spindle from a 500W+ Variac with a rectifier on the output, just make sure you keep the voltage to the spindle below 110V. It might also be possible to use a triac dimmer, again with a rectifier on the output and keeping the voltage below 110, that would be cheaper than a variac, but I can't say how well it would work. Cheers, Jake

@@TheStuffMade Thanks for your reply Jake I have everything grounded. I have seen a video of someone using a 48V variable output power supply and he suggests it works fine and shows the revs at around 11,000? Although checking the dc output on my supply( the same as yours) with the rotary control full on its reading 131VDC so what would your opinion be? No responsibilities on you but my knowledge is not great, would the 48volt Power supply still give me maximum speed? Thanks again Jake

@@spannerman4886 Hello, this version does require at least 110V for full RPM, I tried running the spindle from my 60V bench power supply and it probably ran at around 5000 RPM. I believe there is a 48V version available, that's probably the one shown in the video you saw. Unfortunately the power supply that comes with the spindle is made to be as cheap as possible and very noisy. However using something like a Variac to replace it will probably cost just as much as a new spindle. Cheers, Jake

@@TheStuffMade Thanks Jake that's a big help 👍🏼

It really depends on what cnc you have and how you use your cnc the most, like do you do wood, aluminum or engraving, how important is runout etc. Cheers, Jake

@@TheStuffMade At this point wood and softer materials only ans a bit of runout not a concern. Suggestions?

@@terry2346 In that case using a trim router will be a good choice. You can add an SCR regulator/dimmer for speed control and a solid state relay to switch it on/off from software. I use this myself sometimes for wood projects. They are quite noisy and you'll be limited to 1/4" bits, but the performance is excellent and you really can't beat the value for money. Cheers, Jake

Yeah, I don't see any way this spindle could consume 500W continuously and survive. Cheers, Jake

@@TheStuffMade do you know any good spindle that can go any higher than 200 real W at least?

@@jaimerodriguez3864 If you mostly work in wood and don't care too much about runout, then I'd recommend getting a trim router for more power. I sometimes use the Makita one in this video when working in wood, but they do make a lot more noise. Cheers, Jake

@@TheStuffMade I was looking at the Makita RT0701C since the grabbing area was the smallest i could find but still, i would have to modify my 3018 prover spindle holder to use one of those and I dont know if the rails will supoort its weight of 3.9 lbs. I currently using the Genmitsu aluminum holder. -Jaime

normal used 230V power and then spindle wattege have double more.

I'll change my mind if you show me an example of it consuming 500W continuously without stalling the motor or melting down because of the heat. It already reaches a temperature on the outside of 65+ degree C at ~100W, just think how hot it would get if it dissipated 500W continuously. I can smell the isolation burning on the windings already just thinking about it. lol The comparison with the Makita is valid, a permanent magnet motor can be up to 5% more efficient for large motors, in this test that makes no difference. Cheers, Jake

The Makita is great for rough work, but it's useless for precision work, too much runout plus It only takes 1/4" bits.

i just fight my makita to trash because cheap air cooled spindle have lot lot better, more power cut more biggest chip and noise have less lot in garage my ear .makita have worst spindle to any cnc dont use.

That is incorrect. Where did you get that from?

Which part died in yours? The motor or the power supply? As it is a DC motor you will need to replace the carbon brushes at some point, preferably before the commutator gets torn up.