Member postings for Grindstone Cowboy

Ah, those were the days!

Rob

Never disconnected the cylinder after use on mine, use whatever gas the local plumber's merchant have in stock - not Rothenberger, never had any issues.

Rob

I find the stainless steel pan scourers to be very effective, not as messy as wire wool For example, these.

Links to https://www.diy.com/departments/stainless-steel-scourer-pack-of-4/3663602564775_BQ.prd

Rob

Thanks Brian - I never thought to look at lathes.co.uk. It certainly seems to be a variation on those shown. I'll get to see it "in person" in a few weeks, so I'll do a detailed comparison then.

Rob

Hi folks

A friend has sent me these photos of a watchmaker's lathe he was given many years ago and was wondering if I could tell him anything about it.

As I know very little about watchmaker's lathes, I thought I'd ask here, as I'm sure someone will be able to give chapter and verse on the history, usage and so on for this rather old looking machine.

Thanks, Rob

To speed up the rotting of the stump (unless you are keeping it as a flowerbed), bore plenty of holes in it of a decent size - 1 inch or larger - and fill them with a strong saltpetre solution.

No saltpetre? Pop round to your local bishop with a bucket

Rob

I thought that at first, but I think it's supposed to indicate separation rather than direction. But Emgee could try it and report back. I'm still 80/20 in favour of it simply clipping together.

Rob

Well that was reminiscent of another thread - having taken the motor off the lathe a couple of months ago so I could strip and repaint the lathe, it took me twenty minutes to find it again! Anyway, here are some photos of the modified guard and the Clarke motor.

Looking at the price, not sure how long ago that motor was fitted!

Rob

Didn't take too long to find this, which seems to have the same remote. Not very explicit on how to separate, so I'd guess at just prising them apart, there's quite often a bit of a gap where the keyring part goes.

Links to https://www.gemini-alarm.de/Webshop/contents/de/953_AC2743UK-REV00_U-I_UK.pdf

Rob

Edit - highly unlikely there is a screw under the button rubbers

Edited By Grindstone Cowboy on 01/05/2021 18:35:43

I have a ML7 that has had a Machine Mart motor fitted. I'll just go and see what model, it still has the sticker on it. Guard had been modified to fit it though (but not a major job and it still covers the rotating bits unless you go and stick your hand somewhere silly) and extra holes were drilled in the mounting plate, although I think it could have been made to fit the existing holes if whoever did it had tried a bit harder

Rob

Well, here's where it linked from - it's not the easiest site to try and find what you want, I must admit - can't find the "separate datasheet" for NLGI 00 they mention.

Links to https://thelubricantoracle.castrol.com/product/spheerol-epl-1/industrial/en-GB

Rob

Don't know if this might help, it's the Castrol datasheet for Spheerol EPL1. They seem to be saying there are different NLGI grades within the Spheerol 1 range and you'd want NLGI 00 - or I may have mis-read it?

Links to https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/D847D1AA1AD247AA80257F240036A061/$File/BPXE-A5V8K7.pdf

Rob

Happy to report the AX23 fits nicely. Locknuts are on the "uphill" side, but I think that's the normal position. I see what Hopper means though, but I've not gone for guitar string tightness so hopefully all will be well. Also, a longer belt may cause the pulley to foul the guard.

Roughly measuring around the outside with a piece of string (didn't think to do it before I fitted it) give just over 25 inches, which surprises me, but then again, most things do these days.

Thanks for all the advice.

Rob

Those blue Draper soft vice jaws... recently bought a pair and sorry to say they are pretty poor. The soft plastic is too soft for anything I've tried to do with them. Considering removing the plastic and replacing with some red fibre (if I could find any of a decent thickness), as I have an old pair of fibre-faced ones that (despite one having lost its fibre) work really well and will hold screws, etc. firmly but without marring them.

Rob

P.S. I'd not bother about the anvil, pretty useless and if you hit it hard, could be expensive.

Edited By Grindstone Cowboy on 28/04/2021 19:25:49

On John's advice , I've just ordered an AX23 from Simply Bearings. I'll let you know what happens.

Thanks for the help.

Rob

Thanks Alan, it just seems that would be extremely tight, but I'll go and measure again.

Rob

Quick question - looking to replace the drive belt on a ML7 that runs from the countershaft to the headstock spindle. The one that's on it (although in horrible condition) measures 24.5 " around the outside, but I see on the Myford website that they sell a 23 inch belt for this application, but don't state if this is an internal, external or somewhere between the two size.

Having done a bit of measuring around the pulleys with some electrical flex, I don't see how 23 inches would possibly be long enough unless the adjusters are screwed right in and the 23 inches is measured around the internal surface of the belt. Even then I think it would be tight.

Has anyone replaced one of these recently, and if so, what belt size did you use? Probably going to buy from Simply Bearings as they are considerably cheaper than Myford.

Thanks,

Rob

Slightly off-topic, but I was cutting some industrial flooring vinyl the other day which had tiny particles of grit embedded in the top surface to make it non-slip. Could do about two or three feet of cut with a fresh Stanly knife blade before having to re-sharpen it. The professionals must have a better way?

Rob

I'm probably missing something here, but to me a hydraulic press is something that works slowly but with great force, whereas I imagine you want something more like a power hammer? Apologies if I'm wrong.

Rob

It's apparently a big thing, a YouTuber my daughter watches (video games) was hit with more than 200 infringement notices overnight, each of which he had to deal with individually. This was despite his having written permission from the composer/artist to use their work.

Rob