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General control line discussion => Open Forum => Topic started by: dave siegler on January 29, 2012, 07:29:32 PM

Title: Wanted OS 25 CAD (LA or FP) DXF
Post by: dave siegler on January 29, 2012, 07:29:32 PM
I have noticed that the CAD template file I have does not have a top or bottom view of an OS 25.  I do have most of the other common engines.  I am looking for the mounting holes mostly.


Thanks

Dave
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: Larry Cunningham on January 30, 2012, 10:41:00 AM
Hi Dave,

Check your email.

L.

"An unfortunate thing about this world is that the good habits are much easier to give up than the bad ones." -W. Somerset Maugham
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: Avaiojet on January 30, 2012, 08:04:50 PM
How does someone get CAD templates of engines?

Is there a disc you buy?

Be nice to have.

CB
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: don Burke on January 30, 2012, 08:57:59 PM
How does someone get CAD templates of engines?

Is there a disc you buy?

Be nice to have.

CB
I select the engine I want to draw, measure it then make the drawing with my CAD program.   Being retired I have a lot of time to get that kind of thing done.   I don't put in all the details, but enough to draw things to fit around it.  If possible I'll look up the mounting hole pattern so that I get that right.

I don't have many stunt engine drawings though, mostly racing variety.

The best part is that the drawing views can be saved as SYMBOLS or BLOCKS that can be inserted into any drawing I make.
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: Larry Cunningham on January 31, 2012, 07:24:13 PM
You can use a "trick", Google around and find a manual page, say like this one.

Then, instead of meticulously measuring an actual engine (and Lord help you if you're not using a caliper with a digital readout!), simply capture the image, place it on a frozen layer, and meticulously TRACE it in your CAD program. Don't worry about the actual scale yet, in fact, enlarge the image to get the detail easily.

When that is completed, make your traced image into a block. Carefully measure some known distance (say overall length or perhaps center to center on mounting holes) and compute a required scaling value. Then insert your block at the scaled size to make it 1:1, explode the block, and create a new 1:1 scaled block.

Now, pretend that you actually made the drawing.. ;->

L.

"I saw a tree fall in the woods, and I didn't hear it." -Steven Wright


Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: Clancy Arnold on February 01, 2012, 02:34:28 AM
Dave
Here is the access for ALL OS Engine dimensions Inch or Metric.  (5 pages)
Clancy

www.osengines.com/engines/dimension-std.html
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: Gene O'Keefe on February 01, 2012, 07:42:32 AM
THANKS Clancy......really helps me out too !!!

    Geno
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: don Burke on February 01, 2012, 01:40:15 PM
You can use a "trick", Google around and find a manual page, say like this one.

Then, instead of meticulously measuring an actual engine (and Lord help you if you're not using a caliper with a digital readout!), simply capture the image, place it on a frozen layer, and meticulously TRACE it in your CAD program. Don't worry about the actual scale yet, in fact, enlarge the image to get the detail easily.

When that is completed, make your traced image into a block. Carefully measure some known distance (say overall length or perhaps center to center on mounting holes) and compute a required scaling value. Then insert your block at the scaled size to make it 1:1, explode the block, and create a new 1:1 scaled block.

Now, pretend that you actually made the drawing.. ;->

L.

"I saw a tree fall in the woods, and I didn't hear it." -Steven Wright



I've done it both ways.  I find the caliper method easier.  Yes I do use a digital caliper, doesn't everybody? LOL
Title: Re: Wanted OS 25 CAD (LA or FP) DXF
Post by: john e. holliday on February 02, 2012, 05:58:06 AM
This is as bad as when I asked my son what time it was.  He looked at my watch and said he couldn't tell.  It was one of the old wind up thingys with numbers around the face of it.  Also two pointy things that moved around.    Then he cheated and looked at his digital watch. VD~