Draughting Pens

[Danny M2ZParticipant @dannym2z]

Posted by Andrew Johnston on 24/05/2016 22:54:13:Here are some closer shots of the elevations:

Andrew

Andrew's drawings have a subtle quality and warmth that a cold CAD program could but hope to reproduce.

Maybe not technically perfect but quite usable and easy on the eye.

It's quite difficult to explain why, but I like them as a work of engineering art.

* Danny M *

[Neil WyattModerator @neilwyatt]

Posted by Andrew Johnston on 26/05/2016 11:44:59:

Posted by JasonB on 25/05/2016 07:24:31:

PS could you provide one dimension so an idea of size could be worked out, say flywheel diameter

Jason: Flywheel diameter measures as 7.5".

Andrew

And if you want scale, I suspect those brown rectangles at the bottom will scale to just under 9" long and 3" high – allowing for mortar

[SillyOldDufferModerator @sillyoldduffer]

Posted by Neil Wyatt on 26/05/2016 14:05:28:

Posted by Andrew Johnston on 26/05/2016 11:44:59:

Posted by JasonB on 25/05/2016 07:24:31:

PS could you provide one dimension so an idea of size could be worked out, say flywheel diameter

Jason: Flywheel diameter measures as 7.5".

Andrew

And if you want scale, I suspect those brown rectangles at the bottom will scale to just under 9" long and 3" high – allowing for mortar

Bit blurred but there's a scale in the lower right hand corner of the drawing. I think it says 1 1/2 inches to the foot which makes 7.5" mean the engine has a 5 foot flywheel.

[Neil WyattModerator @neilwyatt]

Posted by SillyOldDuffer on 26/05/2016 14:46:06:

Posted by Neil Wyatt on 26/05/2016 14:05:28:

Posted by Andrew Johnston on 26/05/2016 11:44:59:

Posted by JasonB on 25/05/2016 07:24:31:

PS could you provide one dimension so an idea of size could be worked out, say flywheel diameter

Jason: Flywheel diameter measures as 7.5".

Andrew

And if you want scale, I suspect those brown rectangles at the bottom will scale to just under 9" long and 3" high – allowing for mortar

Bit blurred but there's a scale in the lower right hand corner of the drawing. I think it says 1 1/2 inches to the foot which makes 7.5" mean the engine has a 5 foot flywheel.

And makes the bricks 8.5" long, looks like they left the mortar out

[SillyOldDufferModerator @sillyoldduffer]

Posted by Neil Wyatt on 26/05/2016 15:24:50:

Posted by SillyOldDuffer on 26/05/2016 14:46:06:

Posted by Neil Wyatt on 26/05/2016 14:05:28:

Posted by Andrew Johnston on 26/05/2016 11:44:59:

Posted by JasonB on 25/05/2016 07:24:31:

PS could you provide one dimension so an idea of size could be worked out, say flywheel diameter

Jason: Flywheel diameter measures as 7.5".

Andrew

And if you want scale, I suspect those brown rectangles at the bottom will scale to just under 9" long and 3" high – allowing for mortar

Bit blurred but there's a scale in the lower right hand corner of the drawing. I think it says 1 1/2 inches to the foot which makes 7.5" mean the engine has a 5 foot flywheel.

And makes the bricks 8.5" long, looks like they left the mortar out

Hiatus maxime deflendus!

[JasonBModerator @jasonb]

Neil, being in the construction industry I know all to well the variation in old imperial bricks so they can only be taken as a rough guide.

Thanks Andrew for confirming a known item looks like 2" scale or 1/6th would be a nice size to model it in and a 10" flywheel will fit nicely on the lathe, though it's not quite such a nice scale to get to suit nominal sizes, the original 1/8 of the drawing is better for that.

Also good to know that all that macheneryu and tooling in the house is doing a good job blocking out the daylight

[Author]

Posts