Beam Compass we called them Trammels

[Stewart HartParticipant @stewarthart90345]

Over the week end I made a Beam Compass or as we use to call them Trammels but I thing Beam Compass is a better description as the man said it does was it says on the tin.

Your probably wondering why I needed one of these old fashion drawing/marking out instruments in the modern days of cad. The reason is quite simple I need to draw large arcs in order to model the valve gear on the loco I'm building and my little lap top was just too small to be able to see what was happening so it was a mater of good old pen a paper to the rescue.

Cheers

Stew

Edited By Stewart Hart on 22/11/2017 19:19:59

[Stewart HartParticipant @stewarthart90345]

[Michael GilliganParticipant @michaelgilligan61133]

Nice job, Stew

Personally, I like the word 'Trammel' … if only because it keeps people aware of the origin of what is colloquially called "Tramming".

[but I'm funny like that]

MichaelG.

.

Edit: corrected a silly typo.

Edited By Michael Gilligan on 22/11/2017 19:39:58

[SillyOldDufferModerator @sillyoldduffer]

Another item to add to my list of sexy metal objects! It's odd how often functional objects look good almost by accident. Your Trammel has a whiff of Spitfire about it. Nice.

[Brian HParticipant @brianh50089]

That looks a very nice job Stew.

Brian

[Neil WyattModerator @neilwyatt]

Nice one Stew, Do write it up

Neil

[Stewart HartParticipant @stewarthart90345]

Posted by Neil Wyatt on 22/11/2017 20:49:50:

Nice one Stew, Do write it up

Neil

Just doing it Neil

Stew

[David Standing 1Participant @davidstanding1]

Lovely job, only spoiled slightly by the fact the camera date needs resetting

[Mike PooleParticipant @mikepoole82104]

Posted by Michael Gilligan on 22/11/2017 19:31:53:

Nice job, Stew

Personally, I like the word 'Trammel' … if only because it keeps people aware of the origin of what is colloquially called "Tramming".

[but I'm funny like that]

MichaelG

Trammel is a woody word

Mike

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Mike Poole on 22/11/2017 23:21:55:

Trammel is a woody word

Mike

.

… and numerous other things, according to various dictionaries.

MichaelG.

[Mike PooleParticipant @mikepoole82104]

Yes we don't like tinny words.

Mike

Just had a few pints of Gangly Ghoul so you won't get much sense out of me.

Edited By Mike Poole on 22/11/2017 23:37:46

Edited By Mike Poole on 22/11/2017 23:40:23

[john carruthersParticipant @johncarruthers46255]

Excellent design, I may make one for marking out rocking horse parts, much better than the 'stick and two nails' I use currently.

[Chris Evans 6Participant @chrisevans6]

I made mine about 50 years ago. I still draw some items out at a 10 to 1 ratio as a second check on the maths so a useful addition to any workshop.

[Martin ConnellyParticipant @martinconnelly55370]

When the change from film and board based draughting was changing over to CAD based I salvaged a couple of Harling roller pattern beam compass sets. I still use them for full sized layouts on film for manufacturing.

See the second item down in this link **LINK**

Martin

[Stewart HartParticipant @stewarthart90345]

Posted by Martin Connelly on 23/11/2017 11:24:13:

When the change from film and board based draughting was changing over to CAD based I salvaged a couple of Harling roller pattern beam compass sets. I still use them for full sized layouts on film for manufacturing.

See the second item down in this link **LINK**

Martin

Thanks for the link Martin, I think some of those old sets of drawing instruments are works of art in them selves, and as for those ink pens that comes with every set I don't know if any one has tried to use them when I did I had blots and splashes all over the place, in short I mad a right old mess, when you see the quality of the drawings those old guys did with them you have to take your hat off to them.

Stew

[larry PhelanParticipant @larryphelan54019]

Very nice job,it,s light years ahead of my model,and I love the fine adjustment !

[Martin ConnellyParticipant @martinconnelly55370]

Stew, I made a marker pen holder to fit on the end of one of the beam sections. Marker pen is good enough for a fabrication layout. Never tried to use one of the ink things, pen, nib or whatever they were called. They were also supplied with compass sets but often never used.

Martin

[Neil WyattModerator @neilwyatt]

Stew's sent me drawings for future publication… I see he has used CAD

Neil

[roy entwistleParticipant @royentwistle24699]

Stew If you load the pen with an artists brush and don't draw along a straight edge that is flat on the paper you shouldn't have much of a problem with blots and splodges. It comes with practice

Roy ( but it's a long time since I did it )

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