SherpaDoug
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Scaling of hardware drawings in DraftSight (or AutoCAD)
I am trying to use DraftSight to draw some mechanical hardware for my PCB. DraftSight is the SolidWorks freebie 2D clone of AutoCAD.
If I go to McMaster.com and get a .dwg or .dxf drawing of a bolt (McM # 99306A624 for example) the bolt comes in scaled to 0.7 x size. The length of the bolt called out in the drawing is 1". The length of the bolt using the DraftSight dimention tool is 0.7" If I scale the whole bolt by 1/0.7 = 1.42857 the dimention tool now says it is 1", but the text in the drawing magically changes to 1.429"
Is there any way to reconcile the two? Do I have to erase all the McMaster dimentions, scale the part, and make new dimentions? Are the McMaster drawings bogus? This makes it really hard to make a drawing from imported parts.
P.S. I just tried it on another PC with real AutoCAD and it does the same thing. So either McMaster has bad drawings, or I am somehow confused.....
P.P.S. About half of McMaster's 3/8" x 1" hex bolts (different styles) are the right size in the drawings, some are too big and some are too small. I guess you have to check every part you import and fix the bad ones :-(
I am trying to use DraftSight to draw some mechanical hardware for my PCB. DraftSight is the SolidWorks freebie 2D clone of AutoCAD.
If I go to McMaster.com and get a .dwg or .dxf drawing of a bolt (McM # 99306A624 for example) the bolt comes in scaled to 0.7 x size. The length of the bolt called out in the drawing is 1". The length of the bolt using the DraftSight dimention tool is 0.7" If I scale the whole bolt by 1/0.7 = 1.42857 the dimention tool now says it is 1", but the text in the drawing magically changes to 1.429"
Is there any way to reconcile the two? Do I have to erase all the McMaster dimentions, scale the part, and make new dimentions? Are the McMaster drawings bogus? This makes it really hard to make a drawing from imported parts.
P.S. I just tried it on another PC with real AutoCAD and it does the same thing. So either McMaster has bad drawings, or I am somehow confused.....
P.P.S. About half of McMaster's 3/8" x 1" hex bolts (different styles) are the right size in the drawings, some are too big and some are too small. I guess you have to check every part you import and fix the bad ones :-(
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