If you're only using CAD as a drafting tool, you're missing a great portion of it's capabilities (just in parts/material control alone). As a DESIGN tool CAD really comes to the front. Being able to accurately model the components for fit-up, then using the same models, address shipping, storage, erection clearances, maintenance clearances, and operation clearances, leaves a hand drafter still playing with his slide-rule. Add to that dropping a complete parts list out at the touch of a button, and hand drafting just can't measure up (pun intended). But hey, that's just me.
'xcept if you think the final product is Paper--- You missed the point!
CAD is electronic... and data can be shipped by phone....
or extracted, modified, re-imported and printed in a way it never was drawn!
-- and I agree- CAD's strong point is Revisions...
It's weak point is startup time (include training if you really want to get
Still - some people think CAD is sooo much better (really, just sooo much
And (I still think) drawing with a mouse is like drawing with a brick! Hand
drafting is not done with bricks!
Hand drafting's biggest challenges- master the lineweights & lettering -
CAD: organization and filtering information (layers, layers, layers, for
This thread shows no disagreement- just reminiscence of other talents, and
longing to re-introduce some of it (reintroduce this- all us hand-drawn
advocates: Sepia eradicator! UGH - not to be missed!)
I agree CAD is an additional draughting or design tool however one thing
that I have noticed especially in my field of architectural metalwork the
biggest problem that has crept into architects schemes is one of if it can
be drawn with CAD then it can be made now the real artform of a draughtsman
is to convert the scheme into a practical working drawing for a fabricator
who can then make it.
I think the biggest problem especially in theUK is the fact that it appears
that few people architects draughtsman CAD operators etc do not have the
experience of drawing on the board before going onto CAD so that they do not
know how to set out a drawing to the correct projection or can see where
there will problems in their design
I find agreement with this, too - (Escher-esque designs)
My last employer wanted me to customize ACAD- HVAC work-
I had 4 layers for ductwork -supply, return, exhaust & fresh air/makeup air-
He wanted "wood-stupid" (his words) layering-- all ducts on one layer-
I suggested -
to check 1 duct layer is hit-or-miss
to check 4 layers- air mustpass through Some equipment to enter the next
layer - color coding what's what makes it a 20-second job!
He insisted, now they may as wall be using pencils - "wood-stupid"
I think that I should have said that it appears
that the instances of "if it can be drawn on CAD then it can be made" are
occurring more often. I suppose it is a case of that CAD is taught rather than
draughting at colleges.
I haven't missed any points. CADD is definately way better then manual drafting even when you look at the finished project. Why? because you can plot a fresh copy of the project at any time. Manual drawings will decay and smear over time. I also have never seen a finished manually drawn project that looked consistant throughout all sheets. Each draftsman had their unique style no matter how well the group tried to collaborate. On top of that, most manual documents end up unreliabe because of corrections and on the job changes that never get redrawn, it's not feasable manually. Not to say CAD won't have these problems, but the changes can be made much easier so the integrity of the documents can be maintained.
Sorry, CADD is far better in the end then a human hand with a pencil.
Here's my take on all this: For someone like myself, CAD is a godsend. It IS faster, no matter how you slice it. Witheh added commands; stretch copy, rotate, array, auto dims, etc.. it jsut makes things soooo much easier.
But, I do agree, that anything hand drawn should be regarded with awe. Nothing can compare tothe feelings of teh lines personally put on paper. I remeber seeing a museum exhibit of archetuctural dwgs fromteh last 50 years. Hnad drawn plans jsut have a certain warmth that CAD will never match. (One dwg I remeber, had little cartoon people! way to cool, and obvioulsy a friday, 4:30pm 'time wasting doodle'!! but added soo much feeling to the building plan.
Now I will say this. With the advent of CAD course in school, a lot of 'new designers' figure that if they know CAD, they know how to draft. Not so. I have seen many people like this, just churn out dwgs that are technically.. garbage. And with teh automatic features, one looses sight of what is important, and where things should be placed. Little dertails
Hand drafitng taught you not only how to properly represent the idea, but also to be diligent in the details.. It really made you think. Ansd yes, it is a skill that not every one can master..
Having read onlyt ehg first 20 or 30 responces, I'm not sure if anyone has asked:
What about this new '3d parametric modelling'? Is taht faster than 2D CAD or hand drafting?