Member postings for peak4

According to my Zeus tables, the recommended BSI tapping size for 5/8" BSF is
14mm (0.5512" ), with an alternative of 35/64" (0.5469" )

Bill

Edited By peak4 on 06/02/2023 01:39:12

It looks like Boston Dynamics has released a video of Atlas' slight mishaps

https://wonderfulengineering.com/boston-dynamics-has-released-the-bloopers-video-from-the-atlas-robot-ad-and-it-is-hilarious

Sorry about the actual link, but the video is in there without accessing Twitter.

Bill

A single point automatic threading lathe.
See the video at the bottom of this page, as well as the embedded one below.
https://vesciomfg.com/capabilities/thread-cutting-grinding/



Bill

Yes two photos, but with different brightness, the second one is paler.

Bill

Here on Light Straw, we have a little article on Trimphone dial disposal
https://www.lightstraw.uk/ate/tao/trimphones/radiation1.html

"Light Straw" is the cream coloured paint used after battleship Grey on telephones and transmission equipment in GPO/BT; also coincidentally the colour of the rood of my Landrover, as I found a tin after I'd retired.

Bill

Edited By peak4 on 03/02/2023 01:10:46

Does it have to be plastic?
Here's some aluminium box section with a white finish in 2m lengths
https://alugiga.co.uk/product-eng-2639-40-x-20-x-2-mm-Aluminium-Rectangular-Tube-POWDER-COATED-MATT-WHITE-RAL9016.html

Bill

I wonder if a thread forming tap might be the way to go, along with a high pressure lubricant; I've never used one that small though, but have used thread forming screws.

Alternatively, drill part way through with a clearance drill and tap a shorter hole.

Bill

Have a look HERE for a bit of further info;
https://www.trademarkia.com/uk/trademark-UK00003428388.htm

See also on the UK Gov site
https://trademarks.ipo.gov.uk/ipo-tmcase/page/Results/1/UK00003428388

I'm not use if any of the registered trademark classes are applicable to electric screwdrivers

Bill

Edited By peak4 on 28/01/2023 15:40:55

I very nearly bought one a few years ago.
There were two lathes to view on consecutive days, but in different directions from my house.
Looked at the Willson first, and then the Harrison, which I rejected; unfortunately I then missed the Willson by about ½ hour.
I eventually ended up with a Warco GH1330, which is a rather different sort of beast.

Bill

I think it's a safer version of a drive/catch plate for turning between centres.
Use this with a drive dog, rather than a small faceplate with a post sticking out of it.
They seem to have been supplied with several lathes.

See the photo(s) part way down this page on Willson lathes.
http://www.lathes.co.uk/willson/index.html

Bill

Edited By peak4 on 22/01/2023 00:05:19

No experience of a Bantam on castors, but do use them on other machines.
I'd be happy provided that the castors are outside the base footprint of the machine, when they are set at their narrowest track.



I wouldn't use these castors underneath the cabinet.

You could always lift the cabinet on a crowbar and insert a spacer at each end, maybe hardwood of a length of HD box section.so the castors are available to move the machine for access, but it's not normally resting on them.

Bill

I re-discovered this the other day, NanoFlowCell. I'd come across it years ago, but had largely erased it from memory.
Beware, the website is hard on the eyes, until you scroll the top banner off screen.
https://www.nanoflowcell.com/

There's quite a few videos on Youtube about it, going back something like 8 years, but here's a more modern one



Having listened to the whole of the video, I'm not promoting the presenter's conclusions, but it does give a bit of an insight.

Bill

Edited By peak4 on 19/01/2023 12:42:52

Yes, as I recall, after fitting the vertical drive gear, I had that problem.
I'm in the house at the moment, but I think I added either a fibre washer, or an O ring, behind the micrometer dial to add some friction to the shaft leadscrew assembly.

Bill

I bought a length of EN19 to make an ER25 based spindle for my Quorn tool and cutter grinder, but not got around to it yet.
I did however get asked to make some spacers for a friends motorcycle special, and used some of the bar for those.
Very nice finish using carbide, albeit on my larger Warco GH1330.

I bought a set of collets and a chuck from a chap who was selling off his workshop.
Amongst the items were a couple of very well made parts that he'd machined from hydraulic rams.
John (AKA Bogstandard, RIP) recommended the rams for this sort of job, but luckily had a local supplier; a company who refurbished rams and sold off bent or damaged parts etc.; you just need to get past the hard chromed layer on the outside.
I've no idea what material they are, but it seems to work well.

Bill

From the owners manual Installation page

"The motor and countershaft pulley should rotate in a clockwise direction when viewed through the drive compartment door. Machines for single phase electric supply are correctly wired before despatch.
Machines for 3 phase supply can be reversed if necessary by changing over any two leads from the supply"

Here is a useful page for info on shapers generally
https://www.circuitousroot.com/artifice/machine-shop/shaper/literature/index.html

Bill

Have a look for Whitworth Quick Return Mechanism, and then observe a machine in action through the side door
The effect is more noticeable for long strokes than short, but don't forget to select a lower belt speed, and turn it by hand before running under power.



See also, this article, though there are many others
https://studentlesson.com/definition-applications-components-types-working-advantages-and-disadvantages-of-quick-return-mechanism/

For The Boxford 8", This diagram from the spares site
shows the arrangement of the bull wheel 


https://www.boxford-software.com/spares/NewImages/SHAPER/rocker%20assy.png

Bill

Edited By peak4 on 18/01/2023 01:36:42

A simple toggle, or rotary, switch should be enough to reverse the motor; double pole, double throw, centre off.

Bill

Hello and welcome; where in the world are you, as it might assist others in helping you with any queries you may have?
Sorry, can't assist with the wiring, as mine is 3 phase.
I kept the push button NVR panel, but replaced the contactors with microswitches to control an inverter housed in the cabinet.

Mine didn't have the vertical feed gears; if yours hasn't either, you may find this post useful
https://www.model-engineer.co.uk/forums/postings.asp?th=181598

Bill

I had previously come across the word before, but forgotten about it completely.
It looks like the term, for this article, has been around since the 1920's rather than just turning up in the 2020's, though its origins might even be the middle ages.

Link

https://english.stackexchange.com/questions/490428/origin-of-the-word-spudger

Bill

Acorn Bearings seem to supply the 32DP pairs on p109 (9) of their catalogue
https://www.acornbearings.co.uk/downloads/catalogues/power-transmission/racks-and-gears/davall-bevel-gears.pdf

No immediate signs of 16DP 13/26, though there might be a metric equivalent

Bill