What Did you do Today 2022

Made some coloured chips, it's nice being able take decent d.o.c/feeds. The Ml7 is sulking in the corner

Not just today, but yesterday as well. While waiting for the drawings and construction notes for the Hemingway Kits Chenery V-Twin engine to arrive, I amused myself with this variation on the indexing theme that I employed on my low-profile rotary table and simple indexer projects.

The principle is exactly the same. A close-fitting stepped ring is fastened to the spindle flange (in my case) of the lathe by four grub screws and the "vernier" plate is mounted to the headstock casting by three screws and stand-offs.

The holes in the vernier plate are equispaced at 11° intervals so that a 5mm dowel pin passing through the chuck plate and then aligned with the requisite hole in the vernier plate rotates the spindle by that amount. For example, for an angular displacement of 48°, place the 5mm dowel in the 0-0 hole at 12 o'clock on the chuck plate, perform whatever process is required, then disengage the dowel from the vernier plate and rotate the chuck 40° anti-clockwise on the chuck plate plus a further rotation to hole 8 on the vernier and reinsert the dowel pin. Perform the next operation and job done.

The whole thing would be removable when not in use.

CAD mock-up of the system in use:

John

Upon reflection, perhaps I didn't explain that very well! After the 40° movement, rotate the chuck a little (8° ) until the dowel slides through the chuck plate and into the vernier plate hole marked "8".

I hope that hasn't muddied the waters further!

John

Emoji removal edit

Edited By John Hinkley on 15/11/2022 19:31:17

Edited By John Hinkley on 15/11/2022 19:31:47

Did you get a laser engraver for your birthday? Sometimes I think I could do wonderful things with a laser engraver, particularly graduated scales. I am just not a pantograph sort of person

I feel happy today after completing my 1st toolholder for holding a larger triangle insert with zero degrees so you can uses 3x tips on both sides. I got a set of these from somebody else,Japanese make.
I used what I got, a piece of metal from a Toyota steering coloum, mill the piece sqare, mill the head by 5 degrees negative for this insert. I then managed to get the hole drilled and thresaded(6mm) in correct place, then used a 6mm grubscrew and modify the tip on lathe to have a cam lock, I used 16 thousands feeler guage to get the offset on one jaw of 3 jaw chuck on lathe.

To my surprise he camlock worked well and lock the insert without trying to shift it while locking.

Spent a couple of hours making a part you can buy for £1

Robin,

If I get around to making it, I'll use my Shapeoko 3D router. Having difficulty sourcing 12mm thick aluminium 180 x 180mm at a price that I can justify.

John

Ah well, it might have run, but the timing isn't right, I'm busily making new eccentric rods having re-adjusted the return cranks

Well done Duncan, sounds like you have got over the hump of “if I don’t test it I don’t know it won’t run” and are now happily on the other side.

regards Martin

.

I obviously don’t know what you can justify, John … but I found reasonably-priced ‘offcuts’ of Tooling Plate were available from Richard Austin Alloys

MichaelG.

.

I suggest you have a word with your nearest branch:

https://raaltd.com/aluminium-products/aluminium-plate-products/#casting-tooling-plate

Edited By Michael Gilligan on 20/11/2022 09:29:56

Am I seeing this wrong or did you just remake in brass a steel component that failed in tension?

You could be forgiven for thinking it was a steel part, it was a brass item that had been plated. It fixes the plug strainer to the waste pipe on the sink. The plug slides in and out of the centre bore and it had seized in the old one and the screw snapped trying to remove it

MichaelG,

I thought that I'd posted a response to your suggestion for aluminium supply but I can't have pressed the add posting button. Thanks for the lead to raaltd.com. They have a depot in Leeds, so not so very far from me . I'll send an email enquiry on Monday.

John

I got a call from my brother to say one of the brackets on his extension ladder had broken and could I make him a new one.

Rather than suggest he use JBWeld to fix it I said put it in the post and I'll see what I can do. When it arrived I took a photo and imported into Alibre and then just drew a few lines over the image, extruded those then added a few fillets to suit the cutter 4mm I intended to use

Thought it best to make him a spare while I was at it so nested two together and then ran the CAM in F360 before cutting from 10mm 6082 on the KX-3 making use of the two holes to screw the plate to a piece of scrap. Just needs sawing apart and a bit of filing to square up a couple of internal corners.

Ah. I saw tiny yellow glints in the top countersink and the thread flanks, but thought they might be a trick of the light, or streaks of some deposit...

Helped move a Colchester Triumph 2000 long bed lathe across a warehouse ready for collection this week to go to my mates house.

Yesterday went to collect 50 off Clarkson end and slot mills, all either resharpened or new. Whilst there I was offered a further collection of 230 off, end/slot mills and drills. About 180 of these were new Tungsten carbide end/slot or drills, the rest being HSS. These were up to 18mm dia long series tungsten carbide mills. Decided to have the lot and split them with my mate. Having looked at prices of tungsten end/slot mills, I had a very very very good deal.

Now need to sort all my milling cutters

Colin

Finished off a table to use my rebadged Femi bandsaw in the vertical position. Thanks to member JohnF for pictures and drawings of his

Milling a piece of train rail to see how squzre I can get all surfaces to each other. Its not hard throughout, but I did see sparks fly milling the sides it was cut off.

Any extra ideas what to make of it for future uses as one piece-?

How about an Anvil see Link

Hi, didn't really do anything in the way of engineering, as this morning I had to get some charge back into my car battery so I could go a fetch a new one, but even with charging it for well over two hours yesterday afternoon and at least an hour and a half this morning, I also had to use my jump starter as well. When I got back, just did some catching up with stuff on my old laptop. This evening though I watched a programme on TV about the Hollies reflecting on most of the performances and some of their trials and troubles within their group. Most of the early songs they played, took me back to my secondary school days when they really started to get a headway into the top ten, and the old black and white performances which were on TV. Although I do have a CD with most of their songs on, it was good to see them playing.

Regards Nick.

Edited By Nicholas Farr on 26/11/2022 21:57:13