Member postings for Dave Halford

He has

Halfway there Salvie. Now you have a straight and parallel turned bar. Take the bar out of the chuck and turn it round to hold it in the jaws by your turned section, then see how much the bar wobbles if at all.

BTW some old worn chucks have been used mainly for small size work and will be bad at those sizes, but they are fine on the unused sections. For example I have a 5" chuck with 15thou runout for sizes under 1", opening the jaws further the chuck key goes noticeably stiffer and the chuck holds like a new one.

Are they all different types?

It seems that as others have said sites come and go on the list depending on bookings so if someone takes a walk in jab their booked appointment gets cancelled and the system throws open the slot again. Blink and you missed it.

Round bright bar is neither very round nor very straight, the chuck may be fine.

A new 3 jaw may have a 3thou wobble built in, some may be perfect.

Rotate the bar bit in the jaws and re tighten it may be better.

Or one of the scissor style?

Those are a lot easier on the hands than snips and will cut 3mm steel, even the short one with a handle extension.

The waste is quite curved

Edited By Dave Halford on 09/11/2021 21:02:04

By 'check the wiring isn't bad' I mean check the wires aren't loose in the spade connector crimp, that bare wire is actually touching the spade connector (and hopefully welded to it) and that the spade terminals are not loose on the cap body.

Did you move the wiring, twist the caps round to read them etc. If so just check the wiring isn't bad.

Run caps are in the 400V range

Start caps are 250V

The construction is different.

They both persist in still working too

I suspect it's a CUD that tripped on the pub doorstep during a heavy night out, it might pay you to look for cracks in the apron.

75%

There's a need for unburstable piecework machines out there.

Edited By Dave Halford on 08/11/2021 19:25:15

If you run it first in 4th gear for five minutes and then start it in 6th is it better?

If it's OK like that, the oil just needs to warm up.

At least you can say the control board is as tough as nails.

I'd love to see a photo of the chips that machine produces.

Ian, what motor speeds and cutters do you normally use?

Under one end or both?

That switch stack looks fairly open, you could try a blast of compressed air.

Having met a BBC producer once they know much better than you non media types do.

It's noticeable that some channels always have fuzzy sound, the Sony movie channels were the worst. Discovery seems quite good. Switching between to two told me it's not my ears nor the set, though it could be the sampling rate is too low for a late 60's brain to fill in all the gaps.

Hi Lynne,

By 'the lathe' I take it you mean your ML7B in your photo album. So you should have the NVR as your motor on/off contactor, then the forward/reverse switch, then the motor.

It sound like the NVR is in the wrong place.

In vertical mode the handle ends up where the drill head is so it's not as clever as it sounds.