Search found 623 matches

by billbedford
Sun Jun 14, 2020 9:00 am
Forum: On My Workbench
Topic: Mitchell Castle bogie
Replies: 27
Views: 975

Re: Mitchell Castle bogie

However, in terms of copyright, there may be a world of difference between saving copies for personal use and making publicly available. I suspect that is less of an issue for suppliers like Brassmasters who do this themselves, but the two scenarios of (i) those who don't and (ii) deceased (in the ...
by billbedford
Tue Apr 21, 2020 7:43 am
Forum: On My Workbench
Topic: Bill Bedford Frames for GWR 56xx
Replies: 6
Views: 668

Re: Bill Bedford Frames for GWR 56xx

The frames are correct. The wheels you have used have unnecessary, and un-prototypical bosses on the backs.
by billbedford
Sat Apr 18, 2020 12:44 pm
Forum: Exhibitions
Topic: Scaleforum 2020
Replies: 113
Views: 10311

Re: Scaleforum 2020

Joe Newman wrote:I know that there is a health problem caused by the covid-19 virus.
Perhaps Bill can explain.


I despair of people who don't recognise spillchucker corrections.
by billbedford
Sat Apr 18, 2020 9:41 am
Forum: Exhibitions
Topic: Scaleforum 2020
Replies: 113
Views: 10311

Re: Scaleforum 2020

I reckon that the whole covid thing will be over by the end of May. If shows are cancelled into the autumn it will be because of 'civil unrest' caused by the government playing safe and not lifting the lockdown. Of course, we all have a choice of whether we listen to people who look at the real data...
by billbedford
Fri Apr 17, 2020 10:11 am
Forum: Guy Rixon
Topic: D95 banana van
Replies: 20
Views: 1191

Re: D95 banana van

Yep, photo of the banana boats being unloaded show stems being carried on men's shoulders. While retailers were supplied with hands in wooden boxes.
by billbedford
Thu Apr 16, 2020 8:46 am
Forum: Guy Rixon
Topic: D95 banana van
Replies: 20
Views: 1191

Re: D95 banana van

I think you are going to have problems with those mitres. It may be better to print the van in three pieces, roof, body and underframe. I know I would.
by billbedford
Sun Apr 12, 2020 8:23 am
Forum: Will L
Topic: Buck Jumping on Mass
Replies: 93
Views: 36463

Re: Buck Jumping on Mass

The GER Society has a whole list of drawings that might help with your buckjumpers
by billbedford
Sat Apr 11, 2020 2:12 pm
Forum: Andy W
Topic: 3D printed MR Brake
Replies: 5
Views: 632

Re: 3D printed MR Brake

The main problem was in fettling the brake gear etc to get the wheels fitted. I'm used to carving and cutting soft plastic kits, but this material is far more brittle. I managed to break the footboards and pull rods by being too heavy handed. I'm not sure what you needed to fettle on the brakes. Th...
by billbedford
Sat Mar 21, 2020 4:19 pm
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 70
Views: 4544

Re: Rigid Chassis Locos?

Markits have made P4 axles, whether they still stock them I'm not sure.
by billbedford
Sat Mar 21, 2020 10:42 am
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 70
Views: 4544

Re: Rigid Chassis Locos?

Even with steam era track, ballast is not really very springy
by billbedford
Sat Mar 21, 2020 9:22 am
Forum: Chassis and Suspensions
Topic: Rigid Chassis Locos?
Replies: 70
Views: 4544

Re: Rigid Chassis Locos?

The late Roy Jackson wasn't a believer in 'flexible' chassis either and his locos ran on 'Retford' faultlessly. I remember him saying that he did try compensation at least once, possibly more, but he wasn't convinced by it. But then both Roy and Tony model in EM and OO which could make a difference...
by billbedford
Wed Mar 11, 2020 11:27 pm
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

Re: Ratio Midland Carriage bogies

According to the VCT all the surviving MR clerestory bogie coaches have Bain 8' bogies.
by billbedford
Sun Mar 08, 2020 9:41 pm
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

Re: Ratio Midland Carriage bogies

If I've read the drawing I have correctly, the original Midland bogies were not exactly robust. The drawing shows a channel solebar instead of the angle on the original builds. The is a photo of a carriage fitted with these bogies on page 273 of Lacey and Dow. It's interesting because all the underf...
by billbedford
Fri Mar 06, 2020 5:30 pm
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

Re: Ratio Midland Carriage bogies

They are new, and not yet on the web site. This one is a 9' LMS, others are in various stages of development. The plan is to have the as plug & play fitting to RTR, though the is also a bolster to be fitted on kit coach floors. They are designed for both pin pins and ballrace bearings which wil...
by billbedford
Fri Mar 06, 2020 10:54 am
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

Re: Ratio Midland Carriage bogies

They are new, and not yet on the web site. This one is a 9' LMS, others are in various stages of development. The plan is to have the as plug & play fitting to RTR, though the is also a bolster to be fitted on kit coach floors. They are designed for both pin pins and ballrace bearings which will...
by billbedford
Fri Mar 06, 2020 10:36 am
Forum: Coaches and NPCS
Topic: end steps
Replies: 11
Views: 1761

Re: end steps

Thanks guys. I'm pretty confident that I would never be able to cut enough individual steps consistently by hand before deciding to take up a different hobby. So I think it will be a case of drawing them up and waiting until I can put enough (different) items on one sheet to make it worthwhile havi...
by billbedford
Fri Mar 06, 2020 10:25 am
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

Re: Ratio Midland Carriage bogies

Of course, there are alternatives:


IMG_1451.jpg
by billbedford
Fri Feb 28, 2020 12:33 pm
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

bogie coaches

The brake pull rod to the bogies had to be on the centre line of the coach (think about it). So the inn v-hanger was placed on a longitudinal stringer on the opposite side of the coach to the v-hanger on the solebar. This arrangement was universal for vacuumed braked coaches. See the plan of a six-...
by billbedford
Fri Feb 28, 2020 9:08 am
Forum: Starting in P4
Topic: Ratio Midland Carriage bogies
Replies: 61
Views: 4897

Re: Ratio Midland Carriage bogies

Secondly I have some prototype questions that have not been answered by reading the Lacy/Dow Midland Railway Carriages book Vol 1. Does anyone have a drawing of the brake arrangements for these, at least as far as brake hangers are concerned as the kit has a V moulded onto the trusses/middle footbo...
by billbedford
Sat Feb 15, 2020 11:34 am
Forum: Coaches and NPCS
Topic: LNER Thompson 5 compartment brake third
Replies: 11
Views: 1301

Re: LNER Thompson 5 compartment brake third

Thompson non-corridor stock were 52ft4in over headstocks and had 36' bogie centres so a Gresley 51ft underframe will need a lot of fettling to get it to work. I suggest the easiest way of making a d.361 is to remove the sides from any Hornby Thompson non-corridor and use the BCK0186S sides as sugges...
by billbedford
Wed Feb 05, 2020 12:47 pm
Forum: Guest Book
Topic: 3D printing track
Replies: 10
Views: 1232

Re: 3D printing track

Document printing has evolved ... but it took its own sweet time about it. My research group got its first laser printer in 1987, at great cost. 32 years later, I finally managed to buy a home printer that's both affordable and works well, all my previous home printers having been expensive, or ski...
by billbedford
Wed Feb 05, 2020 12:44 am
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 3844

Re: Another newcomer's question re wagon suspension

And the elephant in the room is: A 26mm axle can't be fitted into blind holes in a 24mm wide shallow channel without distorting the legs of the channel*. Note that in all other applications of pinpoint bearings at least one of the bearings is adjustable, usually on a screw thread. * the limit for th...
by billbedford
Tue Feb 04, 2020 11:26 am
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 3844

Re: Another newcomer's question re wagon suspension

Yes, this part of the design should certainly become an explicit part of the P4 standard ... but do we know what tolerances to put on the parts? What's the acceptable range for end-float in a pin-point bearing? Yes maybe, but it's a bit of an indeterminate quantity as it depends on a/ the w-iron be...
by billbedford
Fri Jan 31, 2020 9:36 am
Forum: Starting in P4
Topic: Another newcomer's question re wagon suspension
Replies: 54
Views: 3844

Re: Another newcomer's question re wagon suspension

The back to back on the society W Irons is 21.81mm, not the 24mm Tim recommends??? I would check that your verniers are correctly zeroed. there is no wear on etching tools so there can't be 'rogue' etches. I dont posess a degree in what ever. Surely if the spec for axles is 26mm axle length then th...
by billbedford
Sat Jan 18, 2020 9:34 am
Forum: Coaches and NPCS
Topic: Bill Bedford Coach Bogies
Replies: 17
Views: 1453

Re: Bill Bedford Coach Bogies

This can clearly be seen in the top picture on page 4 of the article. On my etch all four brake units are the same length and as a result the inside ones, when correctly positioned, are well short of the wheel. And thirdly the corner tabs on the Mk.1 kt appear to have holes for the spring wire whil...

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