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Just read your post again Jo and see your dilemma, clamp 2 bits of 3"x2" wood together and drill a 14mm hole or largest drill bit you have nearest that size if not got that size, equi spaced through...

In fairness to the OP he did say that the Chinese forgot to do the thread when they machined the ballscrew....he's just trying to fix it as cheaply as possible with the tools he has 😊



Sent...

Post it to me with the nut you want to use and I'll cut the thread on my lathe for the price of return postage.

Edit: Sorry I'm retracting that offer - I don't think this will help you as much as...

So if you are following the usual dimensions you will find the a M10x1.5 does not pass over the 8mm section. We typically use M10x1.0 as it also allows you to get a finer adjustment on the locking...

As the man says, squareness is absolutely important. The bearings typically come with a retaining nut with an accurately (one hopes...) machined face specifically for this purpose. From memory, the...

They can be screwcut with tipped tooling but I wouldn't fancy my chances with a die.

Good luck with that. They can be done on a lathe. If you put a wet rag near the end and anneal it you just might do it. I am not sure without checking I thought they were M12x1

Typically, the outside of these ballscrews is very hard, but the hardness is just a skin and the core is relatively soft. If you are talking about putting a thread on a plain end of a ready-machined...

Just went to the web page copied the address and pasted it,not put many attachments into posts but think it's in the tools menu .
Mike

In my case, a Sieg2.7 probably about the same size as yours I think, I machined the top of the ballnut flange a little , about 2.5mm, so I could still use the two top side holes of the flange, and...

Warco WM14 you can usually get away without having to machine the underside of the table.

Warco WM16 is borderline some clear, some don't.

Warco WM18 you always have to machine the table.
...

The 5LPT is the motherboard, so yes, it should come with one.

Ok seeing that you are not so abrasive.

I cut a slot in my table about 4mm deep 20311

20312
and the table twisted by about 2mm:dread: with the stress being relieved then I had to take it to...

Slicing into a golf ball is (well was 25 yrs ago) good fun if you get an old rubber wound one.....new composite ones are boring....😁

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Machining the castings is somewhat irreversible since the parts are hand finished to fit. You can just buy a saddle but you will need to get it reground and fitted which, unless you have all the...

Should be ok cutting dry, will tend to clog if you use something oil based.
http://www.ebay.co.uk/itm/10pcs-6mm-Tungsten-Head-Carbide-Burrs-For-Rotary-Drill-Die

Don't know if a Dremel would be upto the job anyway, we used 6mm shank burr.
Mike

You could use an angle grinder to get the bulk of it out and then use a hand router with a carbide milling cutter in it to get it nice and flat? You can use a CNC router to cut Cast Iron (others on...

It wasn't what I thought it was...

http://www.warco.co.uk/milling-machines/32-wm-16-variable-speed-milling-machine.html

Suggestion: Ask Dean what motors to get and then bodge it together using...

Thats the spirit.

Yes, but it's free for hobbyists.

Yes, generally, 100Khz is more than enough for stepper motors.

Well you seem to have it sorted then. I have a WM18 mill with nema 23s with 2:1 reduction at 68V and am882 drives and it is fine.

You will need to do some more research if you think nema 34...

In my opinion no difference at all. That is, unless you have super fast, very expensive drivers. My drivers (DQ542MA) can handle up to 200kHz. They can be used with 400kHz as well but because that's...

Reminds me of another scenario where someone said to me "Lee, you can't please all of the people, all of the time", it didn't stop me trying, I'm just that kind of guy...



Camera, you don't get...