Author Topic: Drafting compass that holds a pen or mechanical pencil?  (Read 3680 times)

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Offline Michael Kellough

  • Posts: 5288
Is there such a thing? It seems all the “good” compasses only hold the most primitive drawing instrument of all, a wood clinched led pencil.

I want a tool with a strong joint that can securely hold a variety of different diameter instruments. Because want a sharp clear line that doesn’t change widths. Doesn’t seem like this is too much to ask...but despite looking, nothing like it has turned up.

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Offline allthegearnoidea

  • Posts: 19
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #1 on: June 01, 2021, 05:27 PM »
There's this:

https://www.jetpens.com/Kutsuwa-Stad-Compass-with-Mechanical-Pencil-0.5-mm-Silver/pd/9215

But essentially what I think you're asking for is a normal (but solidly constructed/stiff) compass with a slightly larger diameter retaining ring with a screw in it. Which have I also unsuccessfully look for in the past no no avail.
« Last Edit: June 01, 2021, 05:31 PM by allthegearnoidea »

Offline rvieceli

  • Posts: 1521
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #2 on: June 01, 2021, 05:28 PM »
Michael here's a link to a fairly recent analysis of drafting compasses.

https://www.artnews.com/art-news/product-recommendations/best-drafting-compass-1202690854/

The top three have a single lead for the marking side. They also come with an adapter to clamp in a pen or pencil or even a Sharpie.

Ron

Offline Michael Kellough

  • Posts: 5288
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #3 on: June 01, 2021, 05:41 PM »
There's this:

https://www.jetpens.com/Kutsuwa-Stad-Compass-with-Mechanical-Pencil-0.5-mm-Silver/pd/9215

But essentially what I think you're asking for is a normal (but solidly constructed/stiff) compass with a slightly larger diameter retaining ring with a screw in it. Which have I also unsuccessfully look for in the past no no avail.

This is the closest in that it will make a fine line and I can choose the lead. Despite lacking a couple of desirable I’ll buy one them.

Offline Michael Kellough

  • Posts: 5288
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #4 on: June 01, 2021, 05:49 PM »
The good old General pencil compass would work if they just included a larger diameter loop. Might have to just make one. Not much more involved than bending a nail and threading the end.

Or maybe just opening up the existing loop...
« Last Edit: June 01, 2021, 05:52 PM by Michael Kellough »

Offline allthegearnoidea

  • Posts: 19
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #5 on: June 01, 2021, 05:53 PM »
You could even possibly get away with bending the standard clip open a little wider...

Offline Michael Kellough

  • Posts: 5288
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #6 on: June 01, 2021, 05:56 PM »
You could even possibly get away with bending the standard clip open a little wider...

Looks like we had the same thought simultaneously!

Offline allthegearnoidea

  • Posts: 19
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #7 on: June 01, 2021, 05:57 PM »
Ah yes. Post back with how you get on and I will give it a go if you're successful.

Offline allthegearnoidea

  • Posts: 19
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #8 on: June 01, 2021, 06:01 PM »
Ah yes. Post back with how you get on and I will give it a go if you're successful.

Ha! they're £30 in the UK so what's that - $40? Maybe i don't need one that much! [blink]

Offline Michael Kellough

  • Posts: 5288
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #9 on: June 01, 2021, 07:35 PM »
There is another way to go with the General compass, use a Fine point black pen refill and make a holder that fits the compass. I’ll try that too.

Offline Cheese

  • Posts: 8903
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #10 on: June 01, 2021, 07:55 PM »
I prefer using this older model Starrett.

1. The metal point & a traditional lead pencil for paper, soft woods & hard woods.

2. The metal point & another metal point for scribing/marking hard woods.

3. The metal point & another metal point plus Dykem for metals.

A very important added bonus round is that the 2 thumb wheels located on the bottom leg combine to be a fine adjuster that allows you to increase/decrease the diameter of the compass by thousandths of an inch.

Important...I would NOT recommend the Rotape Tape Compass, it's a real POS.


Offline Mr. Amateur

  • Posts: 37
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #11 on: June 01, 2021, 08:11 PM »
FastCap makes a pretty nice compass.

Offline ChuckS

  • Posts: 2885
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #12 on: June 01, 2021, 10:06 PM »
Interestingly, I just needed to scribe the other day with a compass. I used one (marked Hong Kong) that can be fitted with a lead or a pin.

Another older compass I have is marked Eagle Pencil Co. No. 576 New York. Patent Jan 1st 1901.
« Last Edit: June 01, 2021, 10:46 PM by ChuckM »

Offline usernumber1

  • Posts: 181
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #13 on: June 01, 2021, 11:17 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?

Offline Michael Kellough

  • Posts: 5288
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #14 on: June 01, 2021, 11:50 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.
« Last Edit: June 02, 2021, 12:01 AM by Michael Kellough »

Offline Bob D.

  • Posts: 2295
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #15 on: June 02, 2021, 04:24 AM »
Jump over to Lee Valleys' site, you might find something that will work for you.

I found this article on the Instructables site, but the solution is such a hack I would not consider it. MacGyver could have fashioned something better than this with his pocket knife and some chewing gum. :-)

https://www.instructables.com/Marker-Pen-Compass/

But, that black plastic compass shown (looks like it's a FastCap item but they don't call it out) looks like it would be a good candidate to modify for a proper holder for a Sharpie. You could remove the existing holder and make a new one from wood to hold the sharpie which would look and function much better than the hack in the article.

If you jump over to the FastCap site, there are some detail photos of the AccuScribe Pro that show it holding a Sharpie and a mechanical pencil. Only problem is this being a scribe tool it has limited capacity as a compass. I've never seen this tool in person, no doubt some of you have one, but it looks to be 3D printed from the photos I have viewed.

Doesn't seem like a stretch for FastCap to make a compass of this same basic design but with longer legs for greater capacity and a few other tweaks. I bet it would sell.
« Last Edit: June 02, 2021, 04:54 AM by Bob D. »
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It's a table saw, do you know where your fingers are?

Offline Bob D.

  • Posts: 2295
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #16 on: June 02, 2021, 06:32 AM »
Or download this from Thingaverse and print it out.

Sharpie Compass

https://www.thingiverse.com/thing:2760077
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It's a table saw, do you know where your fingers are?

Offline SDWW2019

  • Posts: 75
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #17 on: June 02, 2021, 08:59 AM »
I purchased this one from Amazon a while ago https://www.amazon.com/gp/product/B07TC3NNTH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 (Offidea - ~$13). Comes in two sizes, locks in place, and is sturdy. It also holds both a PICA pencil and any 50-cent mechanical pencil from Bic or Papermate. It definitely does not fit any of the higher end pencils I have, but I'm sure it will hold many of the random pens and pencils in our home.

Offline SRSemenza

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Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #18 on: June 02, 2021, 09:15 AM »
I have an older Accuscribe. The holder has been changed since I bought mine. There is a reducing insert for pencils. Remove the insert for Sharpie. The one I have is for a standard hexagon pencil. See the video on the Fastcap site.

Works fine as a compass, though you can't "twirl" it from the top like a drafting compass for a complete circle. More of a two handed operation. Which is no big deal since I find that on most wood / building material surfaces I need two hands to keep it in place for anything more than about a 1/3 arc anyway. Good for about a 6" radius like most compasses.

The one I have is not 3D printed, and I doubt current production versions would be either.

Seth
« Last Edit: June 02, 2021, 09:19 AM by SRSemenza »

Offline Bob D.

  • Posts: 2295
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #19 on: June 02, 2021, 10:58 AM »
"The one I have is not 3D printed, and I doubt current production versions would be either."

Thanks for that clarification. I based that comment on the appearance in the photos. The surface
has the look of a 3D printed object. I did not mean that to imply it was inferior, just that if that
was the method of manufacture it might be possible to make a compass with greater capacity
than the AccuScribe.
-----
It's a table saw, do you know where your fingers are?

Offline usernumber1

  • Posts: 181
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #20 on: June 02, 2021, 01:40 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.

lol yes. some kits include the mechanical pencil and some include their fine point sharpies. been the same for 70years as you said

Offline SRSemenza

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  • Finger Lakes Region, NY State , USA
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #21 on: June 02, 2021, 07:30 PM »
"The one I have is not 3D printed, and I doubt current production versions would be either."

Thanks for that clarification. I based that comment on the appearance in the photos. The surface
has the look of a 3D printed object. I did not mean that to imply it was inferior, just that if that
was the method of manufacture it might be possible to make a compass with greater capacity
than the AccuScribe.

I am just guessing, that 3D for production of plastic parts is probably not the fastest or most cost effective.

I might get a new one so that I can put something other than a pencil in it. Might be handy.


Seth

Offline Cheese

  • Posts: 8903
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #22 on: June 03, 2021, 02:35 AM »

I am just guessing, that 3D for production of plastic parts is probably not the fastest or most cost effective.


You are correct because 3D printing was never meant to be a production method for quantities larger than 10-15 items. The reason it came into being was it was to be a replacement for the traditional methods used for rapid prototyping. Prior to that, prototyping was done exclusively on traditional machine tools, knee mills, lathes, shapers, surface grinders et al. Check out some of Darcy's equipment, that's how engineering/manufacturing models were constructed in the formative years of our industrialization.

The only problem being, was that those methods were time intensive but more importantly operator intensive. If it took 16 hours to produce a prototype...that meant it took 16 operator hours to produce a prototype. The linkage between a prototype model and the machine operator was a direct one.

Enter 3D printing where you'd prepare the equipment, load the model config and then just walk away. Sixteen hours later you'd have a prototype that was suitable for engineering/manufacturing analysis. The machinist, in the interim, was free to work on other projects which sped other projects along. 

The first in-house 3D printer I became familiar with cost $125,000 in 1996, it had the same sized foot print as the current models but  it was a God-send. So it could be said that 3D printing has now progressed into an arena it was never initially designed to serve. Small quantities of manufactured product rather than limited quantities of rapid prototypes.  [smile]

It's all very interesting to see how the the simple inclusion of semiconductors into manufacturing equipment has changed the manufacturing world...as well as everything else.


Offline tomp

  • Posts: 118
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #23 on: June 03, 2021, 06:47 AM »
This set on Amazon Compass Set shows using a Sharpie in the provided adapter. I was a draftsman for many years, compasses by Mars and others came with adapters to hold technical (ink) pens - e,g, Rapidograph - so you could draw lines of varying widths. I probably have a couple still in the box I brought home when I cleaned my desk out on retirement.

Offline AstroKeith

  • Posts: 210
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #24 on: June 03, 2021, 07:08 AM »

I am just guessing, that 3D for production of plastic parts is probably not the fastest or most cost effective.


You are correct because 3D printing was never meant to be a production method for quantities larger than 10-15 items. The reason it came into being was it was to be a replacement for the traditional methods used for rapid prototyping. Prior to that, prototyping was done exclusively on traditional machine tools, knee mills, lathes, shapers, surface grinders et al. Check out some of Darcy's equipment, that's how engineering/manufacturing models were constructed in the formative years of our industrialization.

The only problem being, was that those methods were time intensive but more importantly operator intensive. If it took 16 hours to produce a prototype...that meant it took 16 operator hours to produce a prototype. The linkage between a prototype model and the machine operator was a direct one.

Enter 3D printing where you'd prepare the equipment, load the model config and then just walk away. Sixteen hours later you'd have a prototype that was suitable for engineering/manufacturing analysis. The machinist, in the interim, was free to work on other projects which sped other projects along. 

The first in-house 3D printer I became familiar with cost $125,000 in 1996, it had the same sized foot print as the current models but  it was a God-send. So it could be said that 3D printing has now progressed into an arena it was never initially designed to serve. Small quantities of manufactured product rather than limited quantities of rapid prototypes.  [smile]

It's all very interesting to see how the the simple inclusion of semiconductors into manufacturing equipment has changed the manufacturing world...as well as everything else.

Initially it was true that 3D was only used for prototyping and small volumes. However the ability to make parts lighter and stronger than otherwise now has driven it into mainstream manufacture. An Airbus750 has more than a 1000 3D printed parts. Of course they are not made the same way as your average home or college 3D printer!
Retired engineer/scientist

Offline Packard

  • Posts: 640
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #25 on: June 03, 2021, 08:23 AM »
Groz makes three sizes for pencils; you would have to use a stick pen if you wanted  to use a pen.  A drafting pencil will probably fit too.

https://www.grozusa.com/products/wing-compass


Offline Bert Vanderveen

  • Posts: 838
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #26 on: June 03, 2021, 09:46 AM »
The Rotring compass set I have been schlepping with me since middle school had an add on specifically for mechanical pencils, drafting pens, etc — a ring that could be tightened and would hold anything upto maybe 14 or 15 mm. That design may still be around.

Correction: found it! Not part of that set, but still… Works with up to 12 mm, so no Sharpies. But, to be fair, I have had this for about 40 years, so no guarantee that it is still around.
« Last Edit: June 03, 2021, 11:02 AM by Bert Vanderveen »
Cheers, Bert Vanderveen

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Offline Cheese

  • Posts: 8903
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #27 on: June 03, 2021, 10:05 AM »
Here's what Dick Blick offers, there's about 6 or 7 that fill the multi marker capabilities test.

https://www.dickblick.com/categories/drawing/drafting/compasses/?gclid=EAIaIQobChMI1Z-9l8_78AIVGAutBh0t7gS8EAAYAiAAEgJHBPD_BwE

Offline Michael Kellough

  • Posts: 5288
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #28 on: June 03, 2021, 04:16 PM »
Been sorting through my stash of drafting equipment mostly inherited from my father) and haven’t found a Staedtler compass but a bunch Alvin and Post (the Post stuff is so beautifully crafted) but none of them will do what I want. One of the Alvins will accept a proprietary Rapidograph type pen.

So I just bought a Staedtler 551 02 on eBay set. Might not hold a Sharpie but it will do most of what I want. FYI there are hundreds of listings for “lots” of drafting equipment at scrap prices.

Offline Packard

  • Posts: 640
Re: Drafting compass that holds a pen or mechanical pencil?
« Reply #29 on: June 03, 2021, 04:24 PM »
Staedtler used to be a high end maker, but they have either transitioned to cheaper products or have parallel lines that are cheap. 

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.