CAD Managers

CAD Managers

Reply
*Ocampo, Samuel
Message 1 of 11 (1,199 Views)

estimating hours for drafting work

1199 Views, 10 Replies
10-05-1998 03:22 PM
Does anybody have a system set up to estimate hours required to finish
various types of drawings (assemblies or details) using the various
standard sheet sizes for mechanical drafting work?

I used to work for a company that does work for NASA and they use this
formula that takes into consideration the estimated density of the
finished drawing and sheet size to come up with the hours needed to do
the drafting work. Any contribution will be greatly appreciated.
*Mims, Jim
Message 2 of 11 (1,199 Views)

Re: estimating hours for drafting work

10-06-1998 01:37 PM in reply to: *Ocampo, Samuel
What are YOU worth?
I'm not trying to be cute.
Straight drafting in this neck of the woods (Fla's panhandle) has a hard
time getting $20-25 an hour. A decent designer in almost any endeavor writes
his own check.

Samuel Ocampo wrote in message <36197EF7.931@erols.com>...
>Does anybody have a system set up to estimate hours required to finish
>various types of drawings (assemblies or details) using the various
>standard sheet sizes for mechanical drafting work?
>
>I used to work for a company that does work for NASA and they use this
>formula that takes into consideration the estimated density of the
>finished drawing and sheet size to come up with the hours needed to do
>the drafting work. Any contribution will be greatly appreciated.
*Rengert, Kevin
Message 3 of 11 (1,199 Views)

Re:

10-07-1998 02:58 AM in reply to: *Ocampo, Samuel
I thought his question was regarding how LONG it takes to do drawings
not how MUCH money to charge.

Jim Mims wrote in message <6vegfg$i7i30@adesknews2.autodesk.com>...
>What are YOU worth?
>I'm not trying to be cute.
>Straight drafting in this neck of the woods (Fla's panhandle) has a
hard
>time getting $20-25 an hour. A decent designer in almost any endeavor
writes
>his own check.
>
>Samuel Ocampo wrote in message <36197EF7.931@erols.com>...
>>Does anybody have a system set up to estimate hours required to
finish
>>various types of drawings (assemblies or details) using the various
>>standard sheet sizes for mechanical drafting work?
>>
>>I used to work for a company that does work for NASA and they use
this
>>formula that takes into consideration the estimated density of the
>>finished drawing and sheet size to come up with the hours needed to
do
>>the drafting work. Any contribution will be greatly appreciated.
>
>
*Mims, Jim
Message 4 of 11 (1,199 Views)

Re:

10-07-1998 03:14 PM in reply to: *Ocampo, Samuel
You are correct. I apologize and will step aside.

Kevin Rengert wrote in message <6vg01k$j512@adesknews2.autodesk.com>...
>I thought his question was regarding how LONG it takes to do drawings
>not how MUCH money to charge.
*Mims, Jim
Message 5 of 11 (1,199 Views)

Re:

10-07-1998 03:25 PM in reply to: *Ocampo, Samuel
Wait a minute!
You are calling me on totally misunderstanding the question but aren't going
to contribute to the thread?
Come on, let's hear what you have to say!

Kevin Rengert wrote in message <6vg01k$j512@adesknews2.autodesk.com>...
>I thought his question was regarding how LONG it takes to do drawings
>not how MUCH money to charge.
*Romero, Miguel
Message 6 of 11 (1,199 Views)

Re:

10-09-1998 07:49 AM in reply to: *Ocampo, Samuel
what are we talking about?
Scaling a sketch and inputing to Acad?
inputing a written description?
both?
I tell those assigning the work, "the more info I have the faster I can
draft"
of course everything is needed yesterday!

What is fast?
*Filkins, Clive
Message 7 of 11 (1,199 Views)

Re: estimating hours for drafting work

10-12-1998 11:26 PM in reply to: *Ocampo, Samuel
Sam (is sam ok?),

You can only estimate on previous, similar drawings. Each product &
discipline will generate a drawing(s) time. Research passed projects.
Build up a database in your particular field. Then it also depends on the
CAD operators.

Your question would be - "How many hours to create this drawing(s)?"
Go round your office & ask, you may get some interesting answers.
Give them all the same drawing to do (a standard component perhaps), get
them to estimate it's drawing time & let them at it - you've got your
first estimate datum.

Pressure, pressure,.......but don't lower the drawing output standard.

Clive.

Samuel Ocampo wrote:

> Does anybody have a system set up to estimate hours required to finish
> various types of drawings (assemblies or details) using the various
> standard sheet sizes for mechanical drafting work?
>
> I used to work for a company that does work for NASA and they use this
> formula that takes into consideration the estimated density of the
> finished drawing and sheet size to come up with the hours needed to do
> the drafting work. Any contribution will be greatly appreciated.
*
Message 8 of 11 (1,199 Views)

Re:

10-12-1998 11:26 PM in reply to: *Ocampo, Samuel
That is the way we do it. We have a custom database system for billing and
luckily had the foresight to include the s.f. (we are architectural) of each
building/floor plan we work on. Now years later we can average the hours
against the size and determine the s.f. per hour. We can also look at which
clients are more of a pain the a** by seeing if there s.f./hr is higher that
normal and charging them more.

--
posy :smileyindifferent:
"professional slacker"

Clive Filkins wrote in message <36226609.49869BA2@ozemail.com.au>...
>Sam (is sam ok?),
>
>You can only estimate on previous, similar drawings. Each product &
>discipline will generate a drawing(s) time. Research passed projects.
>Build up a database in your particular field. Then it also depends on the
>CAD operators.
>

-snip-
*Mims, Jim
Message 9 of 11 (1,199 Views)

Re:

10-12-1998 11:26 PM in reply to: *Ocampo, Samuel
That's interesting.
In electrical design, a good rule of thumb is to use total horsepower, based
on each type of facility, of course.
I've had some luck in honestly estimating what I actually think it would
take me and tripling it.
But that's really the secret, isn't it? Having a continuing database of
similar jobs just allows you to fine tune the estimate to the point where
it's no longer a guesstimate.

posy wrote in message <6vtuk4$1s77@adesknews2.autodesk.com>...
>That is the way we do it. We have a custom database system for billing and
>luckily had the foresight to include the s.f. (we are architectural) of
each
>building/floor plan we work on. Now years later we can average the hours
>against the size and determine the s.f. per hour. We can also look at which
>clients are more of a pain the a** by seeing if there s.f./hr is higher
that
>normal and charging them more.
>
>--
>posy :smileyindifferent:
>"professional slacker"
>
>Clive Filkins wrote in message <36226609.49869BA2@ozemail.com.au>...
>>Sam (is sam ok?),
>>
>>You can only estimate on previous, similar drawings. Each product &
>>discipline will generate a drawing(s) time. Research passed projects.
>>Build up a database in your particular field. Then it also depends on the
>>CAD operators.
>>
>
>-snip-
>
>
*Ocampo, Samuel
Message 10 of 11 (1,199 Views)

Re:

10-12-1998 11:26 PM in reply to: *Ocampo, Samuel
Jim Mims wrote:
>
> That's interesting.
> In electrical design, a good rule of thumb is to use total horsepower, based
> on each type of facility, of course.
> I've had some luck in honestly estimating what I actually think it would
> take me and tripling it.
> But that's really the secret, isn't it? Having a continuing database of
> similar jobs just allows you to fine tune the estimate to the point where
> it's no longer a guesstimate.
>
> posy wrote in message <6vtuk4$1s77@adesknews2.autodesk.com>...
> >That is the way we do it. We have a custom database system for billing and
> >luckily had the foresight to include the s.f. (we are architectural) of
> each
> >building/floor plan we work on. Now years later we can average the hours
> >against the size and determine the s.f. per hour. We can also look at which
> >clients are more of a pain the a** by seeing if there s.f./hr is higher
> that
> >normal and charging them more.
> >
> >--
> >posy :smileyindifferent:
> >"professional slacker"
> >
> >Clive Filkins wrote in message <36226609.49869BA2@ozemail.com.au>...
> >>Sam (is sam ok?),
> >>
> >>You can only estimate on previous, similar drawings. Each product &
> >>discipline will generate a drawing(s) time. Research passed projects.
> >>Build up a database in your particular field. Then it also depends on the
> >>CAD operators.
> >>
> >
> >-snip-
> >
> >

Thanks for all the reply. I guess all your recommendations combined
would be the way to go in coming up with a base figure in determining
hours for drafting work in my specific field. We currently have a
database at work that keeps track of all new drawings generated and
combining it with hours from accounting, I should be able to come up
with a the numbers I'm looking for.
Announcements
Manufacturing CAD & IT Manager Resource
Additional information for installing, licensing & deploying Inventor, the Product Design Suites and Factory Design Suites.
Need installation help?

Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.