Search found 715 matches

by Jol Wilkinson
Wed Feb 28, 2018 1:26 pm
Forum: North East Essex (NEEAG)
Topic: NEEAG February meeting
Replies: 5
Views: 2078

Re: NEEAG February meeting

Doug,

Richard has written up a piece on how he came to roll brass carriage roofs and went about it.

I'll post it in the Tools and Techniques section.

Jol
by Jol Wilkinson
Wed Feb 28, 2018 11:02 am
Forum: Where to Find?
Topic: Parkside Kits
Replies: 42
Views: 12041

Re: Parkside Kits

David, I have read that suitable S/H moulding machines can be brought relatively cheaply. The difficulty with saving the Coopercraft range lies elsewhere. Robert Tivendale at POWsides has negotiated direct supply (from Slaters presumably) of their POW and MR wagons kits. They can be found under &quo...
by Jol Wilkinson
Wed Feb 28, 2018 10:46 am
Forum: Vehicle dynamics and trackholding
Topic: Flange thickness-effect of.
Replies: 56
Views: 13075

Re: Flange thickness-effect of.

simple enough to calculate it. You have all the data in the drawing. regards Alan How? That's way beyond my pay grade! I've done it for you Julian, using the EMGS drawing for their wheel profile standard ( the first and probably only time I'll ever bother with such a calculation). I make it .53mm, ...
by Jol Wilkinson
Tue Feb 27, 2018 11:59 am
Forum: Vehicle dynamics and trackholding
Topic: Flange thickness-effect of.
Replies: 56
Views: 13075

Re: Flange thickness-effect of.

Julian, is the EMGS drawing intended for designing a tool to manufacture wheel tyres? The P4 wheel profile on the same document doesn't match in drawing style. One issue seems to be the location at which the dimension of .36mm flange width is actually measured, so making it rather irrelevant. In fac...
by Jol Wilkinson
Tue Feb 27, 2018 9:59 am
Forum: Vehicle dynamics and trackholding
Topic: Flange thickness-effect of.
Replies: 56
Views: 13075

Re: Flange thickness-effect of.

Perhaps he was too busy to answer - in detail - an email questioning his manufacturing standards/tolerances.
by Jol Wilkinson
Mon Feb 26, 2018 11:43 am
Forum: North East Essex (NEEAG)
Topic: NEEAG February meeting
Replies: 5
Views: 2078

Re: NEEAG February meeting

Doug, I think Richard rolls them with a GW rolling mill (or similar). He was explaining to Paul that he cuts the brass sheet with a long throat piercing saw and it is important to buy good quality saw blades to get a straight cut. He gets his blades in Germany when he makes one of his several annual...
by Jol Wilkinson
Sun Feb 25, 2018 10:12 pm
Forum: Vehicle dynamics and trackholding
Topic: Flange thickness-effect of.
Replies: 56
Views: 13075

Re: Flange thickness-effect of.

As an acquaintance has told me several times recently, anther alternative would be Markits wheels on their P4 axles. He claims to have built a loco with these and that they run satisfactorily on a S4 standard layout belonging to one of his friends. You may not be surprised that, not having witnessed...
by Jol Wilkinson
Sun Feb 25, 2018 5:21 pm
Forum: North East Essex (NEEAG)
Topic: NEEAG February meeting
Replies: 5
Views: 2078

NEEAG February meeting

NEEAG's February meeting was held last Thursday, on the 22nd. Eight members made their way through the chill winds to enjoy tea, coffee and the extravagance of home made cookies and Bourbon biscuits. Three of the baseboards for Lavenham were set out and have now been distributed for storage by indiv...
by Jol Wilkinson
Sat Feb 24, 2018 9:53 pm
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

The test was on two pieces of brass etch-scrap, cleaned up and pressed together face-to-face with Carr's 118 solder paste in between. The RSU was the MMS one and I tried all three settings with no obvious result using the aluminium probe. Switching back to the carbon, the unit was initially on the ...
by Jol Wilkinson
Sat Feb 24, 2018 8:56 am
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

Hmm, interesting that he does not advocate acid flux, uses Carr's 188 paint and is also happy for the tip to glow. I've not seen my tip glow (yet!). I've used an RSU for many years and struggled to get good results with solder paint or solder paste. I always tin the item to be fitted, usually with ...
by Jol Wilkinson
Mon Feb 19, 2018 4:19 pm
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

Well I can understand the simplicity of tapped outputs but that requires a custom traffo , these days it's easy to control the power to the input , I have a big 500W variac on my lab bench , so I can rig that up to a 100 VA 0-6Vac output toroidal and see what's currents are required, it looks like ...
by Jol Wilkinson
Mon Feb 19, 2018 11:14 am
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

Well I can understand the simplicity of tapped outputs but that requires a custom traffo , these days it's easy to control the power to the input , I have a big 500W variac on my lab bench , so I can rig that up to a 100 VA 0-6Vac output toroidal and see what's currents are required, it looks like ...
by Jol Wilkinson
Mon Feb 19, 2018 9:02 am
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

Dave, all the RSU available in the UK have had multiple or variable outputs (notably the American Beauty unit for the latter). The Mignon Models unit had a switched primary input, but that only seemed to give +/- 10% output variation and was only available for a relatively short time. The LRM, Grask...
by Jol Wilkinson
Mon Feb 19, 2018 7:20 am
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

Dave, as the owner of LRM is a close friend of mine, I"ll leave you to work out your own RSU spec. Maplin used to sell a suitable transformer kit on which you could wind your own secondary outputs, but these are no longer available. I wound my own when the LRM unit was being developed but later...
by Jol Wilkinson
Fri Feb 16, 2018 7:53 am
Forum: Tools and Techniques
Topic: Resistance Soldering
Replies: 96
Views: 29053

Re: Resistance Soldering

Steve,

check the diameter of the probe. LRM have always had 5mm, Exactoscale used 4mm. I don't know what the Graskop unit used.
Jol
by Jol Wilkinson
Wed Feb 14, 2018 10:20 am
Forum: Track and Turnouts
Topic: Turnout construction - Question here please.
Replies: 220
Views: 49605

Re: Turnout construction - Question here please.

Tony,

the "adapted" slide chairs look good. Have you considered getting your own castings done for those to save time?

Jol
by Jol Wilkinson
Sat Feb 10, 2018 1:47 pm
Forum: Product Information
Topic: Minicraft drill spares availability
Replies: 8
Views: 4439

Re: Minicraft drill spares availability

Steve, I have had the same response from Squires about Minicraft, but a search turns up a couple of suppliers who still have stocks of the drill so may be able to help with spares. https://www.electronelec.co.uk/acatalog/MINICRAFT_MB150_DRILL.html#.Wn72c0x2uUk https://hobby.uk.com/power-tools/rotary...
by Jol Wilkinson
Mon Jan 29, 2018 5:36 pm
Forum: Other Workshop Practice
Topic: Springs for axle jigs?
Replies: 10
Views: 3374

Re: Springs for axle jigs?

Chris Parrish passed away a few weeks ago, which may explain why the website is down.
by Jol Wilkinson
Sun Jan 28, 2018 10:09 am
Forum: Product Information
Topic: High Level Gearbox range - improvements
Replies: 10
Views: 4600

Re: High Level Gearbox range - improvements

Paul, what's naughty about being truthful?. If someone chooses to pay over the odds because they think they are getting something rare or a good deal, that is down to them. An eBay "trader" told me that he relied on the ignorance or stupidity of buyers to pay more than the price of a newer...
by Jol Wilkinson
Sat Jan 27, 2018 5:30 pm
Forum: North East Essex (NEEAG)
Topic: NEEAG January 2018 meeting
Replies: 1
Views: 1177

Re: NEEAG January 2018 meeting

Seven of the usual gang of eleven attended the January meeting. We spent the evening working on the Lavenham project. Angus had laser cut the sleepers to the design of Len Newman's track diagram drawing. Some had already been "fitted" and more were installed during the evening. The double ...
by Jol Wilkinson
Sat Jan 27, 2018 8:40 am
Forum: Product Information
Topic: High Level Gearbox range - improvements
Replies: 10
Views: 4600

Re: High Level Gearbox range - improvements

Paul Townsend wrote:Makes me regret my policy of laying in supplies ahead of need, while I have a bit of spare cash!
Now what to do with my older versions :cry:


Put them on ebay with the heading "This version no longer available". You will probably make a profit :thumb
by Jol Wilkinson
Wed Jan 24, 2018 10:36 am
Forum: Guest Book
Topic: Flexi Chassis an Appreciation
Replies: 467
Views: 105076

Re: Flexi Chassis an Appreciation

I will admit it took me a while to satisfy myself that Andy's 4 point equalisation as demonstrated in this post would do what he claimed, but after a while getting my head around what was happening, I can see that it does. I don't claim to entirely understand the theory of all this. or how exactly ...
by Jol Wilkinson
Tue Jan 23, 2018 8:59 pm
Forum: Guest Book
Topic: Flexi Chassis an Appreciation
Replies: 467
Views: 105076

Re: Flexi Chassis an Appreciation

No, confused as ever. How about a drawing?

Jol
by Jol Wilkinson
Sun Jan 21, 2018 4:54 pm
Forum: Layouts and Operations
Topic: Onward from Ambergate
Replies: 99
Views: 41195

Re: Onward from Ambergate

Wonderful.

I particularly liked the CGI shots of the train reversing as I have read this is something that can't be done with P4 models, so they must be faked.
by Jol Wilkinson
Fri Jan 19, 2018 10:34 pm
Forum: Guy Rixon
Topic: The LNWR brown train
Replies: 30
Views: 7334

Re: The LNWR brown train

Philip, I think that John didn't do the SW underframe through lack of information. It was always intention to produce a "full" kit if possible. Likewise for the LNWR Oerlikons. A superb set of patterns for the underframe castings have now been produced by Clive Croome, so those that bought...

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