Lisa
Statesman
Posts: 806
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Post by Lisa on Jan 7, 2019 21:31:26 GMT
I don't have a picture to hand but I would say that my relic would be my Unimat 3 which my father bought for me at Wembley ME, IIRC that was 1983 so 36 years ago this month. I still have it and plan to make good use of it when making the various boiler fittings. When I was at secondary school in the 70's I had Metalwork, Woodwork and Technical Drawing classes. I made a working submersible submarine in metalwork, so that was my first pressurised vessel, the second and last being the vacuum reservoir for Doncaster. In woodwork, my project was a 'racing car'. When it came to choosing my options I had to choose one from those 3, I chose TD as I found it a challenge and was pretty good at it. It's a real shame that such classes have been confined to history these days... Pete We had technical drawing, though it was called something else that I can't recall, and also woodwork. Woodwork we actually did some things in, I've still got a footstool I made around here somewhere. Technical drawing, or whatever it was called, was all done with pencil, paper, and trisquare; on the first day the teacher gave us a little introduction which was basically "all this will be done on computer by the time you graduate, and I'm sorry but I can't teach you any of that, so don't bother taking the class for a second year, you won't learn anything you'll actually use."
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Post by Deleted on Jan 7, 2019 21:41:10 GMT
I loved TD Lisa, using a trisquare (is that the word?) as you say, it was great doing the 3 views which then were converted into an 'isometric' view.. a bit like a 3D view in CAD today...who needs a computer... Pete
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Post by simplyloco on Jan 7, 2019 22:00:05 GMT
I loved TD Lisa, using a trisquare (is that the word?) as you say, it was great doing the 3 views which then were converted into an 'isometric' view.. a bit like a 3D view in CAD today...who needs a computer... Pete It was called 'Geometrical and Mechanical Drawing ' I know this as I have a GCE O level in it!
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Post by Deleted on Jan 7, 2019 22:03:02 GMT
I loved TD Lisa, using a trisquare (is that the word?) as you say, it was great doing the 3 views which then were converted into an 'isometric' view.. a bit like a 3D view in CAD today...who needs a computer... Pete It was called 'Geometrical and Mechanical Drawing ' I know this as I have a GCE O level in it! Not in the 70's John, well not in my school Pete
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,907
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Post by JonL on Jan 7, 2019 22:13:08 GMT
I still spend quite a bit of time sketching out what I'm intending to make before building it, especially where specific dimensions are involved, but School don't get the credit for teaching me any of it.
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Post by David on Jan 7, 2019 22:20:08 GMT
I was at high school in the 1980s and we did a bit of brazing and heating/twisting of bar etc. Made an ashtray from beaten copper of course! But I only did one term of it and didn't choose it for an elective because I didn't think that's who I was even though I had enjoyed it and looked at the lathes thinking "I'd like to have a go at that". I was probably right though and I doubt I would have done well in the trade - I'm not a natural at this stuff. I did choose tech drawing as an elective because the old man was a draftsman, and enjoyed that well enough.
We have a metalwork teacher in our club so it is still an option around here. I'm sure I saw a single little metal lathe and pillar drill in the workshop at my son's school. I was a bit disappointed that's all they had for metal.
I really like that a lot of you are still using tools you made as apprentices, or tools passed down through the family or bought for you by parents. I made my first son a little bench and toolbox when he was young and he never once used them. I use the toolbox to carry my tools and loco bits-and-pieces on running days.
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Post by ettingtonliam on Jan 8, 2019 1:30:32 GMT
It was called 'Geometrical and Mechanical Drawing ' I know this as I have a GCE O level in it! Not in the 70's John, well not in my school Pete Not in my school either, in the 1960s. It was Technical Drawing, and I have an 'O' level in it. My teacher wanted me to go on and do it at A Level, in fact he was giving me A Level papers to practise on, but the school said they couldn't fit it into the timetable. When I went to University in 1968, anyone on the engineering course who hadn't done Technical Drawing at school (not all schools offered it) had to go to additional classes in the afternoons to learn it. It was a Tee square by the way, not a trisquare.
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Post by Deleted on Jan 8, 2019 1:33:30 GMT
ah yes... Tee square... with a 45-degree for plotting the isometric...
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jackrae
Elder Statesman
Posts: 1,333
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Post by jackrae on Jan 8, 2019 8:58:54 GMT
ISOs usually done at 30 degrees, otherwise they look very 'lumpy'
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Post by Deleted on Jan 8, 2019 9:03:50 GMT
ISOs usually done at 30 degrees, otherwise they look very 'lumpy' Are they Jack?...I stand corrected...it has been a few decades since I last drew an ISO.... Pete
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,269
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Post by smallbrother on Jan 8, 2019 10:51:16 GMT
I passed O level Tech Drwg in 1971. Some years later I bought a very handy A2 Drawing Board with a tee square. Did the drawings for the raft foundations for my house on it. I also did some more designs for people who were building their own houses. A very sound investment but somehow it got chucked out.
I still have a large 30 deg set square which we use to measure the height of our growing boy against the kitchen door frame.
I only started this hobby in 2009 so I don't have any ancient relics. I have though kept the 5" Scamp chassis that I started that year. I struggled to get anything within 10 thou so gave it up.
Pete.
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,907
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Post by JonL on Jan 8, 2019 11:58:49 GMT
...I struggled to get anything within 10 thou so gave it up.
I'm currently calling any measurement I get in the right Post Code to be a success.
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Post by jon38r80 on Jan 8, 2019 12:51:03 GMT
The only relic in my workshop is me.
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jackrae
Elder Statesman
Posts: 1,333
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Post by jackrae on Jan 8, 2019 13:36:32 GMT
ISOs usually done at 30 degrees, otherwise they look very 'lumpy' Are they Jack?...I stand corrected...it has been a few decades since I last drew an ISO.... Pete Nice explanation with examples shown here of iso construction www.technologystudent.com/prddes1/drawtec2.htmlMy TD teacher was forever tearing his hair out because we wouldn't use 'chisel points' on our pencils Using projection lines to rotate rounded objects for alternative views was always a 'challenge'
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Post by Deleted on Jan 8, 2019 14:10:30 GMT
that's interesting Jack but I wonder if we did it a different way? that seems to show an ISO being drawn freehand using given measurements. What I recall is having the front, side and plan views set out on the paper. Starting with front view top left and using this via vertical and horizontal and 45 degree from bottom right of the front elevation to draw the side and top elevations. Perhaps I'm getting confused with how the 3 2D views were calculated, and the ISO was indeed drawn to one side at 30 degree's?
Pete
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Post by terrier060 on Jan 8, 2019 14:41:48 GMT
What a great idea for a thread Ross. I love the FLIT one - we used to spray a lot of it about when I was in Singapore in the 1950s. Especially under the mosquito nets before going to bed. May explain why my memory is getting so bad - all that DDT! I was lucky in that my father was an engineer and he passed on to me a lot of his stuff. Some pieces he made as an apprentice - the inside/outside calipers for example. Sadly there are no other engineers in the family so I suspect they will all be sold to one of the model engineering suppliers. I just hope they end up in a good home. I still use them all as I still work in Imperial and all the machines are Imperial. The other item which I cannot get to at the moment is a Cowell drilling machine. Sadly Cowell is no more but they made great machines - much better built than the Fobco Star. I have only just stopped using it as I had no room for it and it was replaced by the Tormach. It was the first piece of equipment I bought new, after starting work in the 1960s. I did not have a lathe to begin with, but marked out circular parts and filed them down to centre-pop marks as my father told me to do, and press-fitted them into the motion-work on my tank engine. I built nearly all the loco as far as I could without a lathe. Then my father bought me a 3.5" Drummond still with its treadle. I soon converted it to take an electric motor. With that I was able to finish the engine - turning the wheels and axles - boring the cylinders etc. The only part I bought ready-made was the pressure gauge. I relied heavily on LBSC, bless him, and members of the Soton MES. Like Ross I have kept a lot of old invoices, from Reeves, Myford and others and also catalogues from the 1960s from Kennions, Bassett-Lowke, Clarksons and Stuart Turner etc. Dads tools by ed cloutman, on Flickr
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kipford
Statesman
Building a Don Young 5" Gauge Aspinall Class 27
Posts: 566
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Post by kipford on Jan 8, 2019 18:42:14 GMT
Pete The 45 degree line was used to help draw the side views from the plan view. The iso view was drawn to one side using 30 and 60 degree angles for the x y dimensions, with the z still vertical. I also did technical drawing O Level. I stared using 2D CAD in 1981, 3D in 1983 and stopped using a drawing board completely in 1991. Wow 28 years on the tube and do not regret one minute of it. Dave
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Post by RGR 60130 on Jan 8, 2019 21:10:28 GMT
If I recall correctly, isometric projection used 30 degrees and oblique projection in both the cabinet and cavalier formats used 45 degrees.
Reg
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kipford
Statesman
Building a Don Young 5" Gauge Aspinall Class 27
Posts: 566
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Post by kipford on Jan 8, 2019 23:37:28 GMT
Never ever rely on memory, of course Iso view was only 30 degrees on x and y. What a pratt!
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Post by ettingtonliam on Jan 9, 2019 2:11:51 GMT
While we are still on the topic of drawing, I've got a black steel box which contains all my drawing equipment, the instrument set I had when I was at school, the instrument sets belonging to my grandfather and great grandfather (brass with ivory handles in fitted mahogany boxes, bow pens for ink) my Rotring drawing pens I bought when I started work in 1971, Uno stencil pens and stencils for lettering, set squares, curves, erasing shield, scale rulers etc etc. The company didn't supply any of this, you had to buy your own. The only things they supplied were specialist items such as railway curves. Remember railway curves anyone? I haven't used the pens in many years, but I do still have an A2 drawing board with parallel motion, and several years ago, for old times sake, I did a full set of drawings, component by component, in pencil on cartridge paper, of the planing machine I had designed and built. I built it first, got it working, then drew it once I knew I'd got it right!
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