KX1 Drawbar too long?

**mbcx4jrh** · 16-09-2016

what is the normal length of the thread inside an MT2 M10 collet ... anyone know?

**magicniner** · 16-09-2016

From memory there was about 1/2" to 5/8" of thread in my MT2 collets, I know I ran a die through several to increase thread depth.

**mbcx4jrh** · 16-09-2016

yeah, thats about what i've got.
Arc were really good btw. Just in case anyone reads this the wrong way.

It was tested at arc first, so even stranger. i have a working theory tonight that my previous (clark mill like object) had somehow jammed or damaged the threads at the end of its drawbar... maybe thats why different collets exhibited the same issue. I'll look into this tomorrow.

joe

**cropwell** · 17-09-2016

ARC is my local supplier, being 20 mins down the road from me. They are always helpful, even if you are not a big spending customer.

That drawbar looks like the one from the Sieg SX1 or Clarke CMD10 or any of the same generic Chinese small mills, except that it has a fancy extractor. on my CMD10 I use a soft faced hammer to whack the drawbar to break the taper lock on the collet. Perhaps if you have the Clarke Mille Thinge you could try the drawbar against the modified one and see how the lengths compare. If they are the same after you cut the new one, then probably you had an 'out of tolerance' issue in the first place.

BTW has anybody had any success adjusting the gibs on a CMD10 to get rid of yaw on the table, whilst still permitting the X and Y movement ? My PoC (Piece of Crap) has so badly ground slideways that adjustment across any significant working movement range is impossible.

Cheers,

Rob

**cropwell** · 17-09-2016

[QUOTE=cropwell;83527That drawbar looks like the one from the Sieg SX1 or Clarke CMD10 or any of the same generic Chinese small mills, except that it has a fancy extractor. [/QUOTE]

Looking at the relative lengths of the collets, it looks as though the KX1 is a longer drawbar and I am, yet again, talking bollocks