Member postings for Diogenes

Hope it's okay to link these (oldies) too..

Archive.org - Model Engineer Magazine

../never found that one - thanks both...

Here's one..

MEWS - A Simple Orrery Julius de Waal

..it is quite simple..

Edited By Diogenes on 04/10/2023 06:24:34

..wish I'd been paying more attention to CAD 25 years ago..

If I had to do it I'd make the blade narrower and nibble, stepping it over to reach full width, I'd probably go for something say third to half full width.

I've done this on slightly larger slots - tedious, agreed, but not as tedious as failing to achieve a slot at all.

Edit; don't use a shank that fills the bore, leave a bit of 'give' for inevitable deflection of the tool, could be that jam ups & breakages are due to this.

Start with the bit 'choked down' in the shank and extend it to enable cutting to full depth - you might even need to make another bit to tidy up, or even achieve full depth..

Edited By Diogenes on 03/10/2023 06:45:01

Edited By Diogenes on 03/10/2023 06:49:14

..sounds good, it's our first autumn here so be interesting to see what pops up.. ..also some proper field mushrooms would go down a treat..

I'd seen the 210 mentioned, so guess the point I was thinking about is that with the smaller lathes, 125mm chucks seem to pass 28/30/32mm as the norm so for practical purposes a 38mm spindle bore won't offer much advantage over a 26mm bore - to me, it wouldn't be a reason to buy the 210 over say, a 250. ..'course, space & budget allowing it'd better to have the best of both worlds and get an even bigger one

Just out of interest, do the 38mm bore lathes come with comparable chucks? ..most 125mm chucks seem to have a smaller bore size than this..

..indeed - acknowledged..

Would a simple 'pull-the-pin' alarm do the job ? - used to have one of these on my shed door... ..cheap and easy to rig..

WalkEasy - Minder personal Attack Alarm

Broadly same machine as a Myford VMF..? ..Chris Sangster near bottom of first page in this thread suggests 444kg..

Model Engineer - Myford VM-F

Hemingway Kits supply a kit for a simply-constructed radius grinding attachment kit for the 'Worden' tool & cutter grinder - here; ..worth looking at..?

Hemingway Kits - Worden Mk III - Radius Grinding Attachment

I'm really sorry to hear that, sincere condolences to those of whose lives he was a part..

..very few men have left such a big impression in so few seconds..

What size are H-D cylinder base / head stud nuts?

I've just stumbled across a reference elsewhere that hinted at the passing of Henry Body (of Douglas/Sprint fame) back in the summer - if true it would be sad to think it passed without comment..

In spite of a search I can't find any further information - does anyone know?

^^ Yes, thanks for that - also a good description of what the bike is actually like from the riders pov, interesting..

.."better value alternatives.."?

..this in Caterham..? ..I don't know anything about it other than what is shown in the listing..

Ebay - Warco Minor Mill Drill

Edited By Diogenes on 24/09/2023 09:22:15

Jason's 'Jowitt' build is also still up on Model Engineering Website (including drawings for personal use) - Part one here;

ModelEngineeringWebsite - Jowitt Engine Build Part 1

Neat piece of work..