Thread cutting in chinese ballscrew

**Jonathan** · 12-01-2017

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 it might at first appear.

John S hit the nail on the head with "They can be screwcut with tipped tooling but I wouldn't fancy my chances with a die.".

**John S** · 12-01-2017

Because John S has done it hundreds of times with his own compact design for mounting the motor, bearing, nut and coupling.

Patented that is as well.

No sticking the motor on two plates and 4 pillars. Its a CNC machine not a fcuking clock.

**komatias** · 12-01-2017

Originally Posted by John S

No sticking the motor on two plates and 4 pillars. Its a CNC machine not a fcuking clock.

AMEN!

Now, guys, remember, the conversion is done on the cheap and the expectations will be of the same order of magnitude.

Would I die cut again? Nah, I would just buy machined ballscrews and be done with it.

**njhussey** · 12-01-2017

Originally Posted by komatias

AMEN!

Now, guys, remember, the conversion is done on the cheap and the expectations will be of the same order of magnitude.

Would I die cut again? Nah, I would just buy machined ballscrews and be done with it.

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 😊

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**noyloj** · 12-01-2017

Originally Posted by John S

Because John S has done it hundreds of times with his own compact design for mounting the motor, bearing, nut and coupling.

Patented that is as well.

No sticking the motor on two plates and 4 pillars. Its a CNC machine not a fcuking clock.

Yes, that is a thing of beauty! I was thinking of a couple of bits of machined 4" x 2" angle ally machined up to form a square pr possibly welding up a few plates into a box kinda like the Damon CNC solution... Buerk! Clumsy in comparison but hopefully enough to get me to a position where I can CNC machine a neater solution...

**noyloj** · 12-01-2017

Originally Posted by Jonathan

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 it might at first appear.

John S hit the nail on the head with "They can be screwcut with tipped tooling but I wouldn't fancy my chances with a die.".

Thanks anyhow, but I've gone ahead and bought the die already on ebay... Looks like Old Skool rules for me!