Author Topic: Drafting compass that holds a pen or mechanical pencil?  (Read 3654 times)

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Offline squall_line

  • Posts: 775
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #30 on: June 03, 2021, 05:13 PM »
I saw my old high school drafting set ($12.00 in 1962) selling for $225.00 on Ebay.  I still have the compass, ruling pen and dividers.

Even with inflation (in today's dollars, around $106.11), that's still a little more than a 100% increase in value!

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Offline Bob D.

  • Posts: 2292
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #31 on: June 04, 2021, 06:15 AM »
"Rapidograph type pen"

I have the whole set packed away somewhere. Last time I used them
was probably 1984 when I drew up floor plans of my old house.
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It's a table saw, do you know where your fingers are?

Offline Packard

  • Posts: 635
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #32 on: June 04, 2021, 08:32 AM »
I saw my old high school drafting set ($12.00 in 1962) selling for $225.00 on Ebay.  I still have the compass, ruling pen and dividers.

Even with inflation (in today's dollars, around $106.11), that's still a little more than a 100% increase in value!

Back when a loaf of bread was about $6.00 (2001 or so), my dad said to me complaining about the price, "Right after the war in 1944 a loaf of bread was 5¢ each.  Now it is six dollars.  If I had bought 200,000 loaves of bread back then I'd be a millionaire now."

I replied, "They might have gone moldy or stale in 55 years, don't you think?"

He retorted, "Spoil-sport". [big grin]

Offline Michael Kellough

  • Posts: 5281
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #33 on: June 06, 2021, 08:34 PM »
This inexpensive compass holds a Sharpie and lets you draw a circle a little bigger than 12”.

Made of “metal” and the joint is stiff enough, at least when new.


Offline Bert Vanderveen

  • Posts: 838
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #34 on: June 07, 2021, 08:22 AM »
"Rapidograph type pen"

I have the whole set packed away somewhere. Last time I used them
was probably 1984 when I drew up floor plans of my old house.


When looking for that compass I found my immense collection of drafting pens: Rapidograph, Rotrings, MecaNorma, Staedtler — some of them never used (bc you always have a favourite that works all of the time). I used to be an illustrator and layout artist and one of the jobs I had was drafting layouts for those metal cards that attach to machinery and will be stamped with serial numbers and such. Paid really well, but you had to be absolutely exact (DIN and such). Those were the times…
Cheers, Bert Vanderveen

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Offline Michael Kellough

  • Posts: 5281
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #35 on: June 07, 2021, 11:37 AM »
I had a love/hate relationship with that kind of pen. They were by far the best at making clear consistent opaque black lines of precise width but you had to use them all the time or the ink dried and required a lot of work to restore that was often futile. Gladly technology has made them pretty much obsolete.

Currently I’m working on a commission that requires a mix of old tech and current tech. Reproduce a small unique form in a larger scale. I was tempted to suggest the client get a 3D scan done and find someone with a 6 axis CNC rig but he offered me good money to make it by hand so I’m photographing the original with a 300mm lens on a Micro4/3 camera (makes 600mm equivalent) then uploading the images into an iPad Pro and tracing with a fine mechanical pencil onto very smooth tracing paper (if my old cad software could import a jpeg at high resolution I’d skip the tracing paper) then taping the tracing paper onto the screen of a MacBook Pro and using a capacitance stylus on the good sized track pad tracing into the cad app.

It works because the tracing is done at more than three times the size of the original. Once in cad I can discover all the angular relationships etc. and then print full sized (for the new scale) templates and get to work on the wood using bandsaw, lathe, drill press, belt sander, and hand tools.

Offline Bob D.

  • Posts: 2292
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #36 on: June 07, 2021, 02:37 PM »
You're right it was a PITA to clean those Rapidograph pens.
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It's a table saw, do you know where your fingers are?

Offline Bert Vanderveen

  • Posts: 838
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #37 on: June 07, 2021, 04:10 PM »
You're right it was a PITA to clean those Rapidograph pens.


I used an ultrasonic bath to clean them. Perfect for the purpose.
Cheers, Bert Vanderveen

TS55 · TS55R · OF1010 · DF500 · MFT/3 + TSB1-MW 1000 + VL + CMS TS55 + CMS PS300 + LA-CS 70/CMS · CTL Midi · RTS400 · 2 x CXS Li 1,5 · T15+3 Li 4,2 · TI15 Impact Li 4,2 · Centrotec Sets 2008 + 2015 · PSB300 · LR32-SYS · RO150 · KS120 · 2 x MFK700 · RO90 · OFK700 · BS75 · OFK500 · OF2200 · CMS-GE · Vecturo 18 Li · TID 18 · TKS 80 EBS-Set · DTS 400 · ETS EC 125 w 150 pad · Surfix Set · CTL SYS · CT-VA-20 · … | Mirka 1230L P&C | Hammer: A3 31 Silent Power · N4400 · HS950 | TaigaTools: VacPods Pro Set
On order: … [ ! ]

Offline Bob D.

  • Posts: 2292
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #38 on: June 07, 2021, 04:16 PM »
You're right it was a PITA to clean those Rapidograph pens.


I used an ultrasonic bath to clean them. Perfect for the purpose.

I don't think ultrasonic cleaners even existed back when I was using those pens.
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It's a table saw, do you know where your fingers are?

Offline Michael Kellough

  • Posts: 5281
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #39 on: June 07, 2021, 08:13 PM »
Staedtler has like 4 pages of compasses.
Some hold drafting pens, pencils, second needle, universal holder, etc etc

https://www.staedtler.com/intl/en/products/technical-drawing-instruments/compasses/

I'm surprised you haven't heard of them?

I have Staedtler compasses, among others, but I haven’t looked at their offerings in years. Maybe they’re updated? But no, essentially the same design for the last 70 years. None of them hold a mechanical pencil let alone a ink pen or Sharpie type marker.

Maybe I spoke to soon, depending on the capacity of the “universal adapter”. Can’t find any specs for it.

Bought a Staedtler compass kit with Universal Adapter. It holds a Sharpie perfectly, and anything smaller just about as well.

 Problem solved!

Offline Milvus

  • Posts: 34
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #40 on: June 08, 2021, 05:01 PM »
Staedtler made one. I happen to have one my father bought 30+ years ago.


Offline Bob D.

  • Posts: 2292
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #41 on: June 08, 2021, 09:21 PM »
Don't waste your time with the Noris® 550 01/02. The 'universal adapter' as they call it will accept a regular Sharpie or a Retractable Sharpie but in both cases the lock screw can not clamp down on the pen as the threads will not engage. The screw is not threaded up to the end so only the very first thread starts to engage and that is not enough. I did a 'try before you buy' with a friends 550 compass. No joy.
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It's a table saw, do you know where your fingers are?