Member postings for Roderick Jenkins

Well truffled out Michael

Over the years I have traded various sets and part sets of the Myford collets to get a set that suits my needs. The metric ones are quite tricky to find. My understanding is that the Myford ones were made for them by Crawford Collets but these passed through my hands:

The three marked RHL were subtly different, but still fully functional, from the Myford ones so perhaps Myford weren't the only firm to make use of the Mr Blood's patent.

Rod

My Sharp mill has a 1" arbor without a keyway. I haven't had any problems cutting 20 DP gears.

Rod

Oops, that's not what i meant to say. I'll try again.

Is there any practical difference between using a metric pin in a hole made with an imperial reamer (or vice versa) and using a taper pin in a hole made with the correct reamer?

Rod

This thread has prompted a question: Is there any practical difference between a metric (1:50) pin (in red) and an imperial (1:48) pin (in blue) when bashed into a hole hand cut with the correct reamer?

Just a thought,

Rod

Are you sure you can match the superfine limits available from die casting?

Rod

Have you tried tapping 1 1/8" BSW? Half inch is hard enough

Rod

Thanks again for the input chaps and especially to Jason for those links. So far it seems that Marshalls, Hornsby and Boulton and Paul all seemed to use this form of wheel sometimes - all based in the east of England, I wonder if they outsourced them?

I've had a go at making my own so I 3D printed some fixtures (jigs?)

The hubs were sandwiched together with JB Weld

I made 2 sizes (50mm and 65MM diam.) with the idea of making a trolley with a steerable front axle but am coming round to using the smaller pair for a hand cart as in the Chore Boy illustration. The larger wheels were brush painted with straight to metal paint - horrible, will have to come off if I decide to use them

Cheers,

Rod

I swivel my vice all the time. I guess it partly depends where and how the vice is mounted. Today I needed to support this riveting dolly and since the vice is mounted so that a long bar can be held downwards in front of the bench, a small amount of rotation was required to bring the support bar on to the bench:

Rod

Looks like a (modified) RandA/ Winfield **LINK**

According to the RandA page these were sold my Myford in the 1930s. Winfield are always a good bet for identifying these small basic British lathes, they seem to have made a lot of models for badge engineering.

Cheers,

Rod

Hi Alan,

I have sent you a personal message.

Cheers,

Rod

Read the question guys! The OP is looking for a milling cutter. My solution would be to get a 1mm end mill with a 6mm Weldon shank and put this in a Weldon to Clarkson threaded adapter. Milling with cutters this small is possible with a knee only machine (like mine) with care. It looks like the maximum speed of the mill is 3000rpm which is slightly faster than mine, so definitely worth a try.

HTH,

Rod

How about HPL/Trespa from here:

Plastic sheet shop

HTH,

Rod

Edited By Roderick Jenkins on 13/06/2021 20:06:15

Myford change gears are 14.5 degrees pressure angle. Unfortunately HPC only do 20 degrees.

Rod

The bed on a 1700 series lathe is 18" (46cm), a 1590 is twice that. The countershaft looks much heavier than a 1700. See ADY1's link above

Rod

I have had a similar problem - I had assumed it was an inverter problem but it turned out that the primary (motor) drive belt was slipping.

HTH,

Rod

It used to be so simple, road bikes had 27" ( or 700C) tyres and mountain bikes had 26". Then hybrids came along with 700C tyres and may or may not have had suspension forks. Back in the day I remember that some pro teams tried suspension forks for the cobbles on Paris/Roubaix. I put my bike together from a cyclo cross frame with carbon forks and cantilever brakes. That was 12 years ago - nowadays you would call it a gravel bike. Definitions and styles constantly change, mostly to do with marketing. Mix and match any combination of bits and you will end up with something that a marketing focus group has already coined a name for.

Modern life eh!

Rod

If it were me I would replace the headset as well (they don't need to be expensive). You will then have freedom to mix and match to suit your head tube diameter, head set and steerer tube.

Rod

Guys,

Thank you for your input. You've resurrected my very first forum post from 10 years ago

Cheers and stay well,

Rod

Here's the original picture I grabbed:

Smaller versions seem to work. Difficult to gauge the scale but I doubt that starting handle is more than 12" long. I caught a passing view of one used as set dressing on 'The Repair Shop' that looked like it was about 18" in diameter and makes me think that they were used on more general agricultural implements. I also guess that they may well have been re-purposed for a cart - farmers never throw anything away.

Rod

Paul,

That's really useful information. Lots of pictures on the web of Marshall portables with this type of wheel so I can get a better understanding of the construction.

Many thanks,

Rod