pc software for bolthole layout?

Hi, I have a pc with winXP. My measurements never seem quite accurate
and take a long time even with graph paper. Is there some SIMPLE,
cheap or free software that just shows a measured grid and lets you
put the holes there and print it out? You could take the cutout and
tape it on the part and score the holes with a punch. What could be
easier? Thanks.
Reply to
dogbitten
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DesignCad or almost any CAD program will do that for you. For real accuracy you need to rotate the bolt circle under the drill press or mill with a dividing head. Bugs
Reply to
Bugs
Hey D-B,
I note he has recently moved his site to here. Surprised he didn't drop in and tell us.
Lot's of good stuff, and it's freeware.
Take care.
Brian Lawson, Bothwell, Ontario.
Reply to
Brian Lawson
I considered it but decided that the subject wasn't sufficiently political for RCM. :-)
The BOLTCIRC program won't produce a paper pattern but it will generate the (x,y) coordinates for the holes which, IMO, is more accurate than a pattern.
I recently had occasion to lay out holes of varying diameter on a bolt circle such that the hole-to-hole spacing was constant. Solving that problem involves iterating a transcendental equation which is a bit messy to do by hand. A new program, VREV, does the dirty work.
Regards, Marv
Home Shop Freeware - Tools for People Who Build Things
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Reply to
Marvin W. Klotz
Hard to tell how much accuracy you ned, but your printer will provide a representation of what you want, but won't be very precise
Reply to
Jon Grimm

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