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Member postings for Brian G

Here is a list of all the postings Brian G has made in our forums. Click on a thread name to jump to the thread.

Thread: Old School Projects
03/07/2020 10:49:35
Posted by J Hancock on 03/07/2020 08:03:53:

If you need a book always Google abe books first !

I find bookfinder.com a good place to start as its search results are easier to filter than Abe Books and they include eBay UK "buy it now" as well as worldwide Biblio, Alibris, Abe Books and Amazon listings. The last two are hardly surprising as Abe Books and Bookfinder are both owned by Amazon (not quite a monopoly?).

Before ordering, a quick check on a few independent booksellers and the auction listings on eBay can often come up with a saving, whilst for new books 123 Price Check may come up trumps. This is certainly an area where having more time than money can be useful.

Brian G

02/07/2020 17:12:57

I wasn't sure how to describe a price of £1.50 a page delivered to the UK without getting moderated...

If I could get Amazon prices for everything on my bookshelf, I could set up a really nice workshop

Brian G

Edited By Brian G on 02/07/2020 17:13:25

02/07/2020 16:42:09

There is a copy of "Steam engine and boiler (Modern engineering for schools)" on Amazon.com but at a price!

Brian G

Thread: What a silly Vee block this one is!
02/07/2020 11:49:49

Was it even manufactured rather than simply made? My first pair of V blocks were made within about 8 weeks of starting training, and only matched each other because they were machined as a pair and even I couldn't mess that up - although I'm pretty sure I could now

Brian G

Thread: micro switch
01/07/2020 12:39:37

Marquardt 1010 series. Out of stock at RS though Marquardt

Google image search for 1010 microswitch brings up plenty of them

Brian G

Thread: Wilesco D16 Steam plant
29/06/2020 18:06:52
Posted by Paul Kemp on 26/06/2020 21:28:05:

Andrew,

i don't think the boilers are stainless, some of the blurb suggests polished nickel plating but looking at a video the bling looks like a cover especially round the whistle and safety valve. I don't have any Wilesco products so can't speak with any authority but I would expect the boiler to be copper under the skin. Was quite surprised by the quoted operating pressure of "about 1.5 bar" almost double what you would expect on a Mamod.

Paul.

Hi Paul

The boilers are soft soldered brass, either in a polished finish or nickel plated. It isn't unknown for the sight glass flange to come adrift if the boiler runs dry (when I tried to fix one where this had happened I didn't realise it was made this way and tried silver soldering. I burnt straight through it with a propane torch)

Soldering, polishing and plating the boilers starts at about 3:38 in this video

Brian G

Thread: Number punches
20/06/2020 19:18:05

I don't think there are many 2.0mm punches around. We used to use Kennedy interchangeable punches in hydraulic punch setups to number parts at the same time as punching holes, so I looked at the Zoro website and saw this set from Pryor. I suspect you would be better off making your own holder, perhaps with a central pin to engage in the holes in the plate?

Brian G

Thread: Material for a Chuck Backplate
17/06/2020 14:48:54

I need to make a 5" diameter backplate like that in the photo (but without the protruding cap head screws) but cannot decide what material to buy. Despite the inevitable mess I'm leaning toward cast iron in case the milled recesses around the rim would affect the stability of mild steel, but have no idea if grey or ductile cast iron would be best.

Thanks for any advice

Brian G

chuck.jpg

Thread: Brexit No Deal - WTO duty on EU machines/tooling?
16/06/2020 12:05:23

Not that painful on new items if the vendor can sell VAT free for export (although we will also have to pay clearance fees), but could it mean that we will be charged VAT on used items from private sellers?

Brian G

Thread: Unusual problem with 3D printer
15/06/2020 16:41:27

This has happened to me without feline assistance, in fact the car is quite likely innocent (although if I know cats it is guilty of something) . The longer the PLA is left the more brittle it becomes, and it always snaps at the point it enters the extruder drive as this is where it is under stress.

I now watch it starting to print before turning my back it.

Brian G

Thread: Starrett type clamps
15/06/2020 13:17:26

For anybody who really wants to use Imperial units, Starrett kindly provide a handy drawing of the 2" version, although I would be tempted to take advantage of the +/-1/64" stated tolerance to replace the 17/64" thread with 1/4" or 9/32" (or even perhaps M7, modelling in a scale officially described as "14 to 16mm to the foot" means I cannot afford to be fussy).

Brian G

Thread: Wooden Gears
14/06/2020 14:09:13

Watermills and windmills used fruitwood such as apple for gear teeth, although this was running against cast iron. This website has a list of the properties of different timbers for making wooden clock gears, so it might be relevant.

Brian G

Thread: Does anyone view this forum by first selecting a 'topic'?
13/06/2020 20:36:44
Posted by JasonB on 13/06/2020 20:17:23:

Brian, the reason you are taken to the first page is because you have that set as were you want to go. If you click "settings" on the green bar at the top of the page and then on the page that comes up click "my account" you will see the first thing is how you want a thread to open.

You do need to be logged in for this to work

Edited By JasonB on 13/06/2020 20:18:11

Thanks Jason, settings changed.

Brian G

13/06/2020 19:54:06
Posted by Neil Wyatt on 13/06/2020 19:25:36:
Posted by Martin Kyte on 13/06/2020 14:09:04:

As the forum is busy at the moment could we extend the number of latest posts so they don't disappear so quickly and get missed. ?

regards Martin

You can just click on Next or page 2 of the list!.

The behaviour of the latest posts list on the right of the home page is different to that of the detailed latest posts list following the "more latest posts" link. When I click on the links to the right I am taken to the last page of the thread (the one with the latest post), which is much more convenient than when I use the detailed latest post list which always links to page one of the selected thread. In the case of "My new lathe a Warco 918" this is seven pages from the latest post. A slight inconvenience on a PC, but a real nuisance on a mobile phone.

Getting back on topic, I can honestly say I have never gone to a topic and looked through the threads, instead using latest posts when I want to see what is happening, and the search facility when I want to find something out.

Brian G

Thread: Generating force to cap beer bottle
13/06/2020 12:19:22

The simplest way to get hands-free operation is probably to add a return spring and connect the hand press to a pedal. Industrial staplers often just use a length of chain for this.

For powered operation, If a windscreen wiper motor isn't powerful enough you could try a mechanism I encountered on a small powered notcher. A pedal pushed the crank that operated the notcher into a continuously rotating flywheel, engaging a gab. As the notcher reached the top of the stroke a cam pushed crank out of engagement, and unless the pedal was held down it stopped after one cycle. With this mechanism the motor ran continuously, making the choice of motors simpler

Brian G

Thread: UK supplier of P1N Steel T Parting blade 1mm Wide
11/06/2020 21:30:21

The same question came up a few years back. Perhaps this will help? **LINK**

Brian G

Thread: Recommendations for where to start with my new Emco Unimat Basic SL
09/06/2020 12:46:02

I'm afraid almost everything we have told you (apart from the fact it is addictive and Michael's link to the parts list) applies to the original SL and won't be any help to you. There is some information on your machine at lathes.co.uk.

As the Basic has the same M14 x 1 thread on the spindle and tailstock as the Unimat 3 and 4, you should be able to find additional chucks, drill chucks, faceplates and live centres from either Pro Machine Tools, Arc Euro Trade, Chronos, RDG Tools or eBay. If you want a collet chuck, Arc Euro Trade offer a backplate and ER collet chuck which might be a sensible alternative to the ESX chuck as you could re-use the collets on another lathe or milling machine if you get hooked.

Brian

08/06/2020 21:28:33

I think we may be at cross purposes Lucien. Do you have a Unimat SL (cast bed and swivelling headstock, round bar sideways, turns into a milling machine) or a unimat basic (unimat Pc without stepper motors)?

Photos here

Brian G

08/06/2020 21:26:43

Double post, see below

 

 

 

Edited By Brian G on 08/06/2020 21:29:18

08/06/2020 17:35:47

There is an active group of enthusiasts on groups.io Lucien. **LINK** I'm not a very active member as I seldom use my SL any longer.

Original 4-jaw chucks can be expensive but Chronos or RDG tools sometimes have M12x1 chucks. The group files contain drawings for a QCTP, or there is a piston type available from the US. An alternative approach is to use multiple toolposts. I'm afraid the centre height isn't really enough for a compound slide, but you can fit a 20mm raising block which would let you use a C0 or U3 compound on a thin spacer.

Brian G

Edit: I should add that Ady is right, an SL is a real machine but can easily lead you on to a life of moving bigger and bigger machines. I thought getting a 10x30 lathe upstairs was going to be the end of me.

Edited By Brian G on 08/06/2020 17:45:12

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