Member postings for YouraT

Yes, that makes sense - I think I'll be making some given the shipping cost from PeWe.

Yes, and that's fine generally - I can buy some hex head or cap head bolts no problem, just wanted the square head on this occasion - I'll perhaps have to make some this time!

Oh - thanks - useful!

€9 for three screws - €31 shipping from Germany though <arghhhh>

Hi all.

Does anyone know what the clamp screw type on real Multifix size A tool holders is?

As best as I can tell, they are M7x1, can anyone confirm?

Also, if this is the case, where on earth can I but three square headed clamp screws for one...? Even the Swiss seem to be out of stock...

Thanks!

DC31k, Bernard and Spurry:

genius ideas - I will do something along those lines - I love the O-Ring concept especially

Thanks!

Yes - in fact an R-Clip is what I'm using at the moment, but I can see a circumstance when it will either get in the way or catch on something (a hand for example) with unpleasant consequences.

It needs to be removable as I only need to use the large winding arbor gripper (adapted from a tap wrench) for large fusee springs, and want to use the original, smaller gripper most of the time. Originally there was a roll pin.

Tool clips could work, not as smooth as I want, but better than the R-Clip, and the pipe clips also, and I could file the corners off to make them smoother.

Thanks everyone - I think the *real* problem is that no-one makes these for smaller applications - in my case I need the pin that goes through the parts to be 3mm in diameter. The medical device/crutch adjusters are the smallest I can find - I'll either have to make something myself or change my design to do it another way.

The major attraction of this design is that there's nothing sticking out too much to catch if the items it goes through rotates.

Does anyone know what clips like this one are properly called, and where I might buy a few of a different size?

This one was originally used to set the extension on some crutches, and I'd like to get hold of a smaller size for another application.

My own searching comes up with "E-Clips" as a name, but that is also the name of the external circlip type things, which doesn't help with searching at all!

Thanks.

Not me, although that names are similar

It was more a response to the bluetooth connection and on screen display than the leadscrew bit of the OP's request.

I do think though that using small format magnetic scales on the slide is a better approach than the rotary encoder option, as you will be measuring actual slide displacement rather than something one link removed from it.

>>

With the increasing miniaturisation of electronics; it’s probably time someone re-thunk the idea and made a Bluetooth-enabled equivalent with decent resolution, which put the display on your ‘phone or whatever.

<<

oh, so something like this perhaps?

https://www.yuriystoys.com/

Also there this posting from a while back:

https://www.model-engineer.co.uk/forums/postings.asp?th=139332

Y.

Perhaps something like this system:

http://www.bwelectronics.co.uk/

would work for you?

Although I second the comments about the magnetic scales being very unobtrusive and easy to fit - I've used one at the back of the table on my milling machine (I didn't want to use the front as the useful auto feed stops are there), and didn't loose any travel.

Edited By YouraT on 17/10/2022 09:00:52

Michael,

Many thanks - exactly that one

All sorted now!

Y.

Hi all.

I've acquired a small lathe powered by an older model Jaguar Cub inverter (see picture) - it needs rewiring of course(!), but I don't have a manual - I'd like to see if it's possible to change the modulation frequency as although everything is working well, the motor makes a distinct whistle as it runs.

I can't find a model number anywhere on it, hence the picture in the hope someone can shed more light...

Thanks!

Thanks for ask the comments and suggestions.

The supplier has agreed to a refund, including postage, so that's all good. Interestingly they say that they have sold around a dozen of that exact item and in the only one to have complained...

I've now found a NOS Dormer reamer, which I've bought and I'm sure will be just fine.

Bazyle,

No - other than that feature, it looks as I would expect - the root at the bottom of the flutes tapers along with the flutes, so I think this was meant to be a taper reamer from the start.

I'll try to talk to the supplier tomorrow rather than just do email ping-pong....

Hi all.

Needing a larger (10mm) taper pin reamer, I bought one from a supplier I've previously used, and who have thus far always supplied decent kit.

It rubs, rather than cuts.

Looking at the grind on the flutes, there is a flat that runs the entire length of each (straight) flute which is pretty well parallel to the cutting diameter. Looking at all my other taper pin reamers (all Dormer) this flat is absent.

The new reamer:

an older Dormer reamer:

I also have some spiral flute reamers (not taper), and they all have this 'leading edge flat' geometry, but with the spiral shape, this falls away from the cutting edge and they perform just fine.

I've already sent one back for this problem, and replacement came performing just as badly - I'm taking it up with the supplier again, but what should I expect to see at the leading edge?

Cheers,

Y.

Bazyle,

Yes - a stepper motor controlled arrangement was exactly my aim

I have a motor and indeed the controlling electronics, all I'm missing is the worm and the bits that will hold it all in place.

Thanks for the measurements - I will make it out of brass - I'm assuming it's a flat crested / trapezoidal thread...?

Next challenge of course is seeing if I can easily achieve a 6.35mm pitch thread on my all metric lathe....

Hi all.

I've just acquired an incomplete Elliott dividing head, mostly because I wanted the chuck that's on it and it was the right price..

To make it useful as a dividing head again though, I'd like to see if I can either obtain or make the worm to go with the gear that's mounted on the spindle.

Not so familiar with the specs of these things - is there a simple way to measure what I need, or does some kind soul either have a spare they are willing to pass on, or even know what the specs actually are?

Thanks,

Youra.

Martin

Genius idea!

I even have a bed like that for my little 8mm Boley watchmaker's lathe - maintaining of alignment is effectively built in, and it avoids having to make any more of those fiddly little clamping handles!

Youra.