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Do those work on 110V or just 220V?

The 570 ozin nema 23 drops to ~100 ozin at 550 rpm which is about 110 ipm with 5 mm ball screw. In contrast the 640 ozin nema 34 (KL34H280-55-4AT) has ~250 ozin at 550 rpm. More than double the...

Thats ok. With 5mm pitch ball screws the 570's loose a lot of torque at about 100ipm. This may limit your rapid speeds. Its why I changed from the 570's to the 640's.

The 640ozin Nema 34's are a pretty good combo on the g0704, way better than the 570 nema 23.

Im just trying to figure out how this stuff works. Maybe I'm asking the wrong questions? Will it trip even if I limit the output current? How does the current limit work in the vfd? Does it just...

Good point Steve. Im having trouble finding 800W with ER16. Do you have any recommended sources?

Thanks for your help, I'm still not clear on things.

What do you mean by not great performers or dismal?

I really don't care about the 2.2kW rating, I'm not going anywhere near there. It's...

That's interesting, this is all a learning experience for me. Searching myself its hard to find info.

On the other hand I found 110V 2.2kW spindle / vfd set on amazon, also 0.8kW and 1.5kW with...

Hmm. It makes sense that you cant get more output than input, were talking about power right?

I guess I was assuming a 1500W 220V motor should be about 7 amps on the output. I figure this means...

Thanks for the reply! Is that 30-50% output power drop at the same input power? If I had 120V 12.5A (1.5kW) it would still loose 30-50% output power? Is this due to vfd efficiency?

Hi all I know this has been asked before, but I cant seem to find the information I'm looking for. I'm interested in getting a spindle with er16 for a benchtop mill (similar to a router in style) but...

So I was able to use a interesting pair of vise grips to grab onto the spindle and torque the drawbar. Sure enough I ran into some bad programming where there was severe chatter and stalling of the...

That's a proper CNC machine. Quite bigger than a benchtop machine eh?

I don't have a power drawbar, and I realize I'm not going to find a socket to fit this square drive that comes on top of the...

Wow that sounds amazing. Do you have any pictures of the machine your making those cuts with? I cant even do 0.25 cin/min without the TTS pulling out on my machine! A properly tensioned drawbar makes...

I just recently found a lot of joy in not using the TTS tool holders on my G0704. I would choose ISO20 over TTS. TTS is really sensitive to chatter so if your machine isn't rigid enough or your...

Nice spindle lock!

Very Cool. I don't have audio so I can't tell if your saying anything or not. Will it be spring loaded to the open position?

Hello all. I recently started using my G0704 again and after a crash I was worried I ruined my intermediate gear. I took off the window near the gear selector and inspected the gear. The teeth all...

I thought I would update this thread with what I did. I replaced the Stepper, bearings, and ballscrew. The main thing is probably the stepper. I have a 604 ozin nema 34 installed. I didnt check the...

I have been taking a break since its freezing in the garage, but I was really considering the leeson motor 192067.30 its a d80c frame , 1.5hp , 3475rpm 10:1CT motor. It also weighs in at a whopping...

I measure 275mm Wide X 340mm Long X 96.5mm Tall. I have been slowly working on some cad models but didn't want to release it until I was finished.

You got that for about the same price as the 0704? What a deal! I think this looks similar to the RF 45 mill so that may be a good starting place. If there aren't already kits you can make your own....

Ok. So I think I have found my motor upgrade. I'm looking at a 71C 3ph AC motor 1hp. The 1hp is continuous, and by my calculations it should have 2.1 Peak HP.

I based this off of the following:...

Air cylinder to actuate the hydraulic master cylinder. A 2" diameter air cylinder will produce 300lbs of force on 100psi. Go thru a lever or get a cylinder big enough to go straight to the MC.

Hmm did you attempt to use that calculator before you shared?

It makes sense that the larger radius would demand more power and rigidity from your machine. You could calculate the HP requirement and cutting forces. There's going to be some point where you don't...

I found a 1hp 71 frame motor. I imagine this will do pretty well I think it may be a drop in as well but didn't measure the stock motor yet. Now I'm double thinking it and looking at that 1.5hp...

How much did you pay for the weiss motor? The only place I found online was aliexpress and they want about $360 shipped.

I like this idea.

Yeah I have a few 56c motors here at work, and they just look waaaaaaaaay too big for the mill. I'm looking at metric motors as they can be packaged smaller than the 56 frame motors and still pack a...