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Hmmmm, looks like a benchtop to me???

Thomas

If you use the proper water soluable coolant there should not be an issue with rust.

Thomas

I don't think that rigid tapping is possible unless you have a servo spindle.

Thomas

Jay and David,

Here is what I did on my RF-45 for the counterbalance:

http://ImageEvent.com/tppjr/rf45dovetailmill/zaxiscounterweight

Working out pretty good. I did swap out the gas spring...

The bearings are conical bearings, about the worst you could use. The preload changes with changes in spindle temp etc, etc. The bearings produce a ton of heat. Try this, run your spindle (not the...

Remember I am not shooting this down. I like the idea. Actually the bearings are quality from the factory at least mine were. When I did my rebuild I replaced them anyway with good ones again. ...

Looks good. I am still waiting for my 150lb spring to come in to replace the 200lb. I will be done with the counter balance then. Did you loose any travel?

Thomas

Looks like we have the same machine. I don't think I would go over 4000 rpm, probably stay about 3k. I think that is around the limit for the type of bearings the RF has. Wish it had "real"...

Only problem is that you can not have both worlds. Either speed or torque. If it is setup for speed and you need to do something slow you may not have the torque to do it. If you set it up for...

But not three phase. You need a three phase motor to run a VFD.

Is the factory IH mill motor three phase? I do not think it is even 220 much less three phase which is what you need to run with a VFD. My RF motor is a two speed 220 three phase. I wired it to...

I was sure I bought the setup through enco, one of their $99 units but can't seem to find it now. But that is what I got. The skimmer I got from Skimpy at:...

Ron,

I am not ignoring you. As soon as I am back up (computer rebuild) I will check and post them. I wrote them down once but can't seem to find them. I will post them on mh photosite too.
...

Anything I can help wiht will be my pleasure. Always good to give back. I could not have done what I have without this and many other groups made up of great people.

Thomas

Ron,

No problems at all. If it wasn't for groups like this I would never had been able to do what I have done. The more I can give back the better.

As far as accuracy, I honestly do not know,...

I don't know, must be. The wire as well as the ferrells were both listed as 3/32. The wire itself measures about 1/8" in diameter.

Thomas

I used regular 3/32 cable, the stuff made for garage doors.

Thomas

Ron,

Thanks. First, if you make it to any of the links go to the top and there is a drop down that will allow you to go to any of the others from there.

My RF is a true RF and is the way it...

Since the CNC conversion I rarely run the mill at under 3k and for extended periods of time. The lower bearing would get so hot I could not keep my hand on it. I had previously added a downstop...

Here is what I have come up with:

http://ImageEvent.com/tppjr/rf45dovetailmill/zaxiscounterweight

Seems to work perfect so far. Only thing is that I think I will change the strut to a 150 lb...

Have you done a live demo with OneCNC yet?

All I can find is by the 5gal. Pretty pricey to try, anyone know where I can get a gallon to try?

Thomas

Where do you get it from?

Thanks,

Thomas

Not the cheapest but I had very few problems with the learning curve. Theyt have several different packages. Give them a call, they can link up with you if you have a cable modem and give you an...

Have you looked at OneCNC?

Thomas

I am confident that if I do a combination gas strut and pulley system like a counterweight I will be able to retain full movement. I guarantee that I will be able to reach the table. If I loose...

BW,

I could easily hide the gas strut inside. The reason I am not going to do it that way is because the tension will be acting on the gibs in the same direction as the weight of the head. I...

I think that is what I am going to do but think it will be a combination of the two systems. I am looking at using a cable system just like I would if using a hanging counterweight but use the gas...

I am thinking about doing a counterweight for my RF-45 CNC conversion and am trying to decide on the route to go. Either a true counterweight or a gas spring. If I use a counterweight won't the...

Here is what I did to my RF-45. Works pretty good, just wish that I had known about the pattern that should have been cut into the ways to help with the oiling. It works good but bugs me to know...