Re: West Mersea

Eastsidepilot

Western Thunderer
Col,
What would you prefer: keys fixed to the chairs or loose keys to insert as required?

.

...........What are your thoughts on assembly Dave ? as we wont be able to slide chairs on in the normal way once a vee is made up, it would work with loose keys, with fixed keys the chairs would have to be cut.

Col.
 

Stevesopwith

Western Thunderer
I think I'd prefer loose keys, so as not to have to cut the chairs. They'd be 3.5mm long.... quite manageable compared with some of the stuff we handle!

Steve.
 

Eastsidepilot

Western Thunderer
Perhaps Dave will print off a 1:43.5 hammer for you to knock them in with :D

"SSSHH"......PJH might be listening:rolleyes: .

With solder assembly of the vee we'll have to put the brass tie strips under the the spacer block positions and the dropper wire under the knuckle perhaps.

Col.
 

S-Club-7

Western Thunderer
Perhaps Dave will print off a 1:43.5 hammer for you to knock them in with :D
The cunning plan is to (eventually) produce two versions. One with fixed chairs: primarily to be used for cosmetic purposes (samples should be at the next meeting). The second version will have loose keys for those of us who want to do it properly; I believe these chairs and loose keys will be fully functional so no soldering required (apart from a dropper wire to each piece of rail).

The loose keys will be tapered (like the prototype) so if you thump or squeeze them in too hard the chair jaw will snap off (unlike the prototype) -- what we need are rubber hammers...
 

marsa69

Western Thunderer
Those chairs look the mutts nuts. I'd probably take some for my next O gauge project, and no, I'm not converting I just prefer better looking rail components :thumbs:
 

Eastsidepilot

Western Thunderer
The cunning plan is to (eventually) produce two versions. One with fixed chairs: primarily to be used for cosmetic purposes (samples should be at the next meeting). The second version will have loose keys for those of us who want to do it properly; I believe these chairs and loose keys will be fully functional so no soldering required (apart from a dropper wire to each piece of rail).

The loose keys will be tapered (like the prototype) so if you thump or squeeze them in too hard the chair jaw will snap off (unlike the prototype) -- what we need are rubber hammers...

Excellent Dave,
I know it takes some time to draw all this up Dave, are you likely to produce the larger angles, 8's & 9's at all ?:D

Col.
 

S-Club-7

Western Thunderer
UPS have just delivered the first 1 in 6 crossing chairs. Sorry about the focus of the photo, the camera here at work isn't designed to be used for photographing 7mm scale chairs!1in6_first_one.jpg
From left to right we have: the 6X chair; the knuckle block, washer-blocks and bolt-heads; a point rail holding-down-block (for those who shape their point rails properly, for the rest of us there's also one fixed to the 6A chair); the 6A chair; the A blocks; bolt-head and washer-block to hold the end of the splice rail to the point rail (left and right variants); wing blocks (left and right variants) and washer-blocks; more washer-blocks to join the point and splice rails (some companies also had a rivet or two as well); the 6B chair; and finally the 6C chair. See the image in post 187 above to see how it should all fit together.

Come to West Mersea HQ on Sunday if you want to see the real thing (bring a magnifying glass!) being installed.

Edited to add link to previous post.
 

Dog Star

Western Thunderer
UPS have just delivered the first 1 in 6 crossing chairs..

Ther drawing in post #187 indicates that the 6A is modelled on a "slab-and-bracket" style which is too modern for some of us! What chance that you might include the "block" style of chair on future prints?

regards, Graham
 

S-Club-7

Western Thunderer
The drawing in post #187 indicates that the 6A is modelled on a "slab-and-bracket" style which is too modern for some of us! What chance that you might include the "block" style of chair on future prints?

This is only the first draft (first 3D draft that is, there have been dozens of virtual drafts since last November). When I get my new PC (you may all have to buy some chairs to help fund it...) then there's no real reason why not, except I really should concentrate on the chairs needed to convert Lumpy Sidings to S7 in time for the "33 sq ft challenge".
 

Dog Star

Western Thunderer
I really should concentrate on the chairs needed to convert Lumpy Sidings to S7 .
An interesting link and one which indicates that my suggestion in #201 might be applicable. I think that you intend to represent second-hand S&C components from MR and GER without any REA arrangements / fittings . If I understand those sentiments then unlikely that there would be any slab and brackets at 6A.

regards, Graham
 

S-Club-7

Western Thunderer
An interesting link and one which indicates that my suggestion in #201 might be applicable. I think that you intend to represent second-hand S&C components from MR and GER without any REA arrangements / fittings . If I understand those sentiments then unlikely that there would be any slab and brackets at 6A.

I must read my own web-sites before posting links to them! In my defence, those words were written a decade or so ago, although they are still roughly what I'm aiming for.

A 6A "block" style chair will be in the next 3D draft print, after I finish the GER chairs required by Steve and Sopwith.
 
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