|21 forum posts|
The MT2 spindle bore in my tailstock has some damage i can feel, has anyone any idea of how to best clean it up ?
Has anyone any experience of using a MT reamer or any other way that proved successful ?
|Martin Connelly||29/07/2019 17:59:09|
959 forum posts
I have cleaned one up (not on a Myford) with a reamer. Held it in the 4 jaw to get best possible concentricity of the shank and checked the tip was running true using the centre drilled hole. kept everything locked or pinched to minimise snatching and turned the chuck by hand to take off the minimum necessary to give a good surface. I was only removing raised high spots and leaving the main bulk of the spindle untouched.
|Brian Wood||29/07/2019 19:06:46|
|2072 forum posts|
I too have cleaned up the morse tapers on tailstock barrels, but I adopted a much gentler way of going about it
I gripped the tang end of the correct size reamer in the bench vice in one instance and pushed the barrel onto it while rotating it by hand. You can 'feel' the cutting that way. I haven't measured the result as the lathe is being refurbished but taper shank drills fit with a nice 'kerthunk' noise and grip properly
In the second case, a 3 MT version, the tailstock barrel [18 inches long and heavy] was gripped via a cloth in the vice and the reamer turned by hand in a big tap holder, using the tang gripped between the jaws of the tap holder. Later measurement on a precision bar at 5 inches from the mouth of the barrel gave a run out of under 0.001 inches and again there was the satisfying 'kerthunk' noise on fitting drills
|21 forum posts|
Thank you for the replies, sounds like good advice on controlled use of the MT reamer. I think i will give it a go.
|3147 forum posts|
It may well be that you have an "piece" of swarf imbeded, just a light touch with the reamer.
Please login to post a reply.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.
Click THIS LINK for full contact details.
For subscription issues please see THIS LINK.