Hi, I am trying to make an array of holes for a project but I am not able to Keep the pacing the same.
I would like to make it look like this picture
Thanks Andre
If you want the number of holes to increment on every concentric ring I think you’ll have to do a circular array on each ring individually.
Oh, BTW, you’ve got an extra hole at the 11:00 position on the second outer ring.
I saw it Thanks ,
I have tried so many things to get this to work out .
So, do you just need the number of holes to increase, or do you need the spacing between the hole centres to be the same from ring to ring?
Better yet, can you share what you’re making? I’m guessing a gear cutter or a rose engine.
Spacing between the holes need to stay the same.
Maths isn’t really my strong subject, but let’s see how we do.
You’ll need to do each concentric ring individually. Say all holes need to be spaced 3mm apart and you need 40 holes in the first ring. That’s 40 x 3mm = 120mm circumference. (I’m assuming you need either arc length or the difference between arc length and chord length doesn’t matter. If you need a specific chord length the maths changes a bit). Divide 120mm by Pi and you get a diameter of 38.2mm, so make a circle this size. Put the circle for your hole at a point on this circle, select the hole, then also select the circle. Do a circular array of the hole around the centre of the larger circle with a count of 40. Then do the same for each successive circle, working out how many holes you want, multiplying it by the arc length, working out the new diameter, making that new circle concentric to the others and circular arraying the new number of holes.
Like I say, if it’s chord length you want it’ll be a slightly different calculation of circle diameter, but the general principle will be the same.
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thanks, I think it works out
All good, mate. Glad to help.
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