Exactly? Six 3/4" holes on a 6" stick equally spaced? Want 1/4" of
stock between tangent of hole and end of stock on both ends?
Then locate hole no.1 with its center 5/8" from either end, (that is
the 1/4" space + 1 radian (3/8") of the hole diameter = 5/8)
That leaves {6" - 2(5/8") =} 4.75" of space to split up 6 ways.
Spacing = L/(N-1), where L = length of drilling space & N=6. So 4.75"/
5 = .95"
Centers for holes = .95"
Now How? Use fence on the drill table; let hole no.1 start its center
at 5/8" from the end of stock. Clamp in place against an end stop.
Scribe nothing; hitting a scribe line = .010" error minimum. (Also
true of lasers, sharp pencils, knife lines or chalk.)
Make an accurate .95" spacer, easiest choice = garden variety
Adustable Parallel.
Drill hole no.1, move stop x .95" (step & repeat), butt work against
new stop position, clamp & drill hole no.2.
Iterate for a total of 6 holes. Tangent of last hole will hit 5/8"
from opposite end of stock; all holes equally spaced
http://patwarner.com/drilling_lessons.html










On Aug 20, 10:46*am, "Paul" wrote:
My math skills are non existent beyond basic math, and I'm trying to figure
out how to space holes evenly along a center line in an area. Let's say I
have a rectulanglar block, 6" long ,less 1/4" on each end for a border and I
want to evenly space 6- 3/4" holes. How do you figure that? My
daughter-in-law says you can do that in one of those cheap home design
programs. That would be ideal for me. Anyone use one of those programs that
knows if they can be used for that? Thanks.

--
Paul