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Falcor

32 mm beginner`s locomotive

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Peter Russell 408/06/2018 10:28:29
10 forum posts

Jason Thanks for that however the bosses I refered to for the water gauge are square and as far as I can see College don't do square pb102 and I don't have the facilities to machine square bar from round or hex

Pete

JasonB08/06/2018 10:41:31
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Ah, missed that

M-Machine do some square bronze sections by the inch, Assuming you have a lathe then they can be machined down to the required overall size in your 4-jaw. But you could also do that from larger dia round stock in the 4-jaw if you don't have milling facilities

Ian S C08/06/2018 12:17:36
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Do you have a file? It's worth making a filing rest for mounting on the lathe, if you only have a small number of items to file square or hex, it's often quicker to file them up than to set up the milling machine if you had one.

Ian S C

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Neil Wyatt08/06/2018 17:00:59
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Posted by Peter Russell 4 on 08/06/2018 10:28:15:

I don't have the facilities to machine square bar from round or hex

Put a section of bar crosswise in the 3-jaw chuck so its held by two jaws on one side and two on the other.

Use a spacer to make use it is parallel to the front of the chuck body, but slide the spacer out before machining.

Face the front of the bar flat.

Rotate the bar 90 degrees so the flat face is against the pair of jaws, set parallel and turn another flat.

Repeat twice more and you have a square bar.

Not the most accurate method, but works when you want some 'cosmetically' square bar in an emergency.

Neil

martin ranson 210/06/2018 19:29:31
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TO PETER RUSSELL 4 ... sorry for the delay in replying ... we have just had a week boiling ourselves in the lake district ... not usual weather for summer ... far too hot to climb Helvellyn ... most times we get rain ... fig 8 in part 2 of Falcor quotes 16 swg for the boiler, this includes the 2 end plates, just as JASON B says ... I use hard wood for the 2 formers needed ... add 2 lots of plate thickness together, in this case .064+.064 = 0. 128 (check your sheet metal) ... subtract this from the ID of the boiler tube ... this gives you the diameter of the formers ... if you try for a flange length of about 7/32 then add twice this to the size needed for the copper sheet ... anneal it and keep on annealing it as the flange is slowly formed ... to not harden the copper means that it will need to be re-annealed 4 or 5 times ... when you have made the two hard wood formers the copper sheet can be sandwiched centrally between them and clamped in the vise ... remember to make a small bevel on the corner of one piece of wood ... bend the copper round this.

When finished the flange should have a reasonable length all the way round ... if it is a bit off-centre then one part of the flange will probably have a kink or a fold in it ... this part can be trimmed down in length ... this should allow it to flatten ... all my flanged plates are now filed instead of machined ... quite deliberate as it allows the silver solder (sf 55) to flow through the joint and make a decent fillet on the inside edge.

I have always used PH. bronze with no problems ... again JASON B has answered this question ... thank you Jason ... most of the square material I use has been filed down by hand from hex. or round stock ... a file and a hacksaw is generally my version of a milling machine ... I just keep an eye on the corners by using a small square ... hope this is useful.

martin

Peter Russell 417/06/2018 21:58:53
10 forum posts

The corrections Martin has made regarding the tab on the top of the frames. 25/05/2018 part 4 three errors

The magazine drawing ive got looks ok so what Martin is saying does not make sense ( sorry Martin its more than likely my brain!!!!)

Any advise appreciated

Regards

Pete

Peter Russell 418/06/2018 20:51:54
10 forum posts

Malcom part five just recieved today - have the gremlins struck again?

Suspension bracket fig 32/33 there is no mention of the width of the brass strip forming the bracket.

Regards

Pete R

martin ranson 219/06/2018 10:20:27
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TO PETER RUSSELL 4 ... the brass tab on top of the frames is 0.50 wide and 0.25 high ... the height is correctly shown as 0.25 but the width has been omitted from the very top of the drawing ... maybe I have made it worse ? I think I will have to study ALL the measurements shown to check it is all in its right place ... as yet I am not sure it is your brain or mine that is having a senior moment ! will let you know, but it could be me ! ... as regards the suspension bracket the thickness is 1/16 or 0. 0625 and width is 0.75 ... it is ( or should be ) shown in figure 34 which is a side view ... I am assuming this part of the drawing is not yet published ... I have not yet seen the newest copy of ME, it should arrive in a couple of days ... It is just unfortunate how the magazine has been published ... you need all 3 drawings for it to make sense ... one question ... you typed Malcom part five ... should it be Falcor ?

martin

JasonB19/06/2018 10:27:33
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Martin, the correct 1/2" width for the tab is given, just to it's left, maybe just moved down to save column inches?

Fig 34 is published but just shows the front suspension bogie bush and net from 5/16 hex. Fig 33 gives the thickness but not the width of the bracket (upto fig 39 published in 4589)

 

PM Sent

Edited By JasonB on 19/06/2018 10:28:20

martin ranson 219/06/2018 18:17:31
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TO PETER RUSSELL 4 ... I asked GOD to check the frames drawing ( fig 26 ) with me ... SHE said it looks OK ... she did say maybe it should have been marked REAR at the left and FRONT at the right to save any confusion ... as regards fig 34 showing the suspension bracket, side view, it would appear from what JASON B has typed above that the numbers of the figures have changed slightly ... I will know how it appears in a few days when I get my copy of the magazine ... perhaps it is best if I do not comment on something I have not yet read yet ... I used to get the magazine by subscription about 8 years ago, about the time when easy-flo 2 disappeared from the shops ... at that time the magazine arrived on Wednesday or Thursday ... I did not realise that there was such a difference in delivery times ... hope this is some use.

martin

martin ranson 222/06/2018 13:45:18
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TO PETER RUSSEL 4 ... I am now looking at my copy of M.E, part 5 of the loco series ... a good job I waited till I had the magazine to look at ... 7 of the figures have been re-numbered in the drawing office ... 2 of the figures which show the axles and wheels for the front bogie are missing ...with these I made the wheels loose on their axles ... presumably they will show up in part 6 in a months time ... on figure 33, page 13, the width of the suspension bracket is missing ... it should be 0.75 inches as we said the other day ... the drawing office people have put figures 32 and 33 next to each other ... an error has crept in ... one of the measurements marked as "outside edge of bend" started out as 1.40 and not 1.338 as drawn ... hope it is all sorted( for the moment )

martin

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