Member postings for Tony Pratt 1

Sorry I can't see any advantage to the 'lightly clamp part in vice and tap to suit method' that I use, just my opinion.

Tony

Who says you have to drill small holes, 4/5 mm drilled hole should be fairly doable?

Tony

60 degree dovetail is correct

Tony

2 mm endmill x 30 deep will not work, slotting as per Andrew J is doable in the home work shop, what machines have you got, both a lathe and mill can be used as a make shift slotter.

Tony

I was quite good at sharpening twist drills back in the day, afraid my eyes just aren't good enough even with glasses to make a decent job of them these days.

Tony

John Haine, it's got to be cost hasn't it? My Warco lathe is so much better with an electronic leadscrew but the cost is way more than the few crappy change wheels supplied with the lathe as new.

Tony

When I was on CNC lathes parting off was not my favourite occupation but high pressure flood coolant plus constant surface speed was a huge help.

Tony

Don't worry guys, like everything else the donkeys in charge will be on the case.

Tony

China (or India), strikes again, get a refund.

Tony

Bo'sun, I have used the felt covered tapered tools for cleaning tapers but as you say they will not remove rust.

Tony

I wouldn't use reamers to clean out rust, if the spindles are hard they may damage the reamer if soft the reamer might 'knacker' the spindle, I always prefer to use the wet and dry method as per JohnF.

Tony

If you buy a MT 4 milling adaptor you must use a draw bar through the spindle to secure it in place.

Tony

When I bought my Warco 290V this ‘induction hardened bed’ issue did trouble me as I thought it was just shall we say, ‘not true’. Although my lathe has been OK over the last 3 years this thread reignited my curiosity and I had a further look at the bed, there is absolutely no sign of an induction hardening process being applied, no sign of heat discolouration even on the bed end where it hasn’t been ground and parts of the supposedly hardened bed are as soft as the unhardened parts. From nearly fifty years experience in engineering including performing hardening/induction hardening processes my conclusion is that my lathe bed has not been induction hardened at all. Disappointing I know but I’m not surprised at all.

Tony

I would go with a VFD and give your M/C a good clean before trying to sell it, makes it so much more attractive, some jokers don't even bother to clean the swarf off their for sale machines, sort of tells me how they have been looked after.

Tony

Exactly what I use but a larger HSS blank to suit my tool post.

Tony

Chris, were they sold as 'working'?, if they don't work send the lot back at the sellers expense.

Tony

An Other, funnily enough or not I was told about my pension increase last week and received yesterday a letter from HMRC saying I owed them £1300 from tax year 2020-2021 as I had underpaid my tax, how the hell they waited this length of time I don't know and will be starting an OT thread for advice. I am so, so annoyed and couldn't sleep last night thinking about it.

Tony

I did exactly the same John, after reading your web page 😀

Tony

Taken from Eley Metrology website 'In metrology, it is very common for customers to require threaded inserts to hold or clamp items in place during the measurement process. One area of caution must be observed if these clamping inserts are needed.'

Tony