WHERE to drill the holes?
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WHERE to drill the holes?
I have a board that's 7.25 inches wide by 14.375 inches in length. I want to drill three 15/16th holes across, even to each other and to the sides.
Then drill more holes the length of the board inline with the ones across. HOW do I figure out where to drill the holes on this pounding bench for the granddaughters birthday?
Then drill more holes the length of the board inline with the ones across. HOW do I figure out where to drill the holes on this pounding bench for the granddaughters birthday?
SS 500(09/1980), DC3300, jointer, bandsaw, belt sander, Strip Sander, drum sanders,molder, dado, biscuit joiner, universal lathe tool rest, Oneway talon chuck, router bits & chucks and a De Walt 735 planer,a #5,#6, block planes. ALL in a 100 square foot shop.
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Bob
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Bob
Where to drll the holes?
If I understand what you are trying to do, you have not given enough information.
How many holes do you want in total?
How many holes do you want in total?
MarkFive510
So - I started by thinking you would want about 3/4" between the centers of the three hole and the long edges. doing this would require subtracting 3/4" from each side. 7.25" - 1.5" = 5.75" divided by three = 1.9167". This means you will want 1.9" between the two holes.
After marking a center line across the board, and two parallel lines 1.9" from each side of the center line - - Drill the first hole in the center of the short side with the center of the hole located 3/4" in from the outside. Depending on the radius of the holes, the edge of the hole will be closer to the edge.
Then mark the sides at 1.9" intervals and saw the other end of the board off to match the first side.
After marking a center line across the board, and two parallel lines 1.9" from each side of the center line - - Drill the first hole in the center of the short side with the center of the hole located 3/4" in from the outside. Depending on the radius of the holes, the edge of the hole will be closer to the edge.
Then mark the sides at 1.9" intervals and saw the other end of the board off to match the first side.
Octogenarian's have an earned right to be a curmudgeon.
Chuck in Lancaster, CA
Chuck in Lancaster, CA
I think 4 rows of 3 holes across.markfive510 wrote:If I understand what you are trying to do, you have not given enough information.
How many holes do you want in total?
SS 500(09/1980), DC3300, jointer, bandsaw, belt sander, Strip Sander, drum sanders,molder, dado, biscuit joiner, universal lathe tool rest, Oneway talon chuck, router bits & chucks and a De Walt 735 planer,a #5,#6, block planes. ALL in a 100 square foot shop.
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.
Bob
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Bob
Drill Holes
Divide the width of the board in half = 3 5/8, now divide this figure in half = 1 13/16. The holes on the width of the board will be 1 13/16 apart center to center. Put your first row 1 13/16 from either end and continue down the board until you get about 1 13/16 from the other end. You will have to adjust the board length slighty to keep all holes 1 13/16 apart (center to center)
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Ronny
Ronny
Drill Holes
Let me expand on this a little bit. Lay out a grid out on the board with all lines 1 13/16 apart and where the lines cross should be the center of each hole. If I had the capabilites of drawing the grid online it would be plainer. I hope this is not to confusing
Knowledge gained but not shared is knowledge lost
Ronny
Ronny
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Possibly a picture will best convey my approach.
[ATTACH]2986[/ATTACH]
This sketch shows two approaches. One is more balanced than the other. I would use the one on the right side.
[ATTACH]2986[/ATTACH]
This sketch shows two approaches. One is more balanced than the other. I would use the one on the right side.
- Attachments
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- Pounding Board Drill Pattern.jpg (99.41 KiB) Viewed 5549 times
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Dusty
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Dusty
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Where to drll the holes?
Another approach would be to trim the board to 7"x14" and then lay the holes out on a 1 3/4" grid. In other words perform a force fit.
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Dusty
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Dusty
Sent from my Dell XPS using Firefox.
- dusty
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- Joined: Wed Nov 22, 2006 6:52 am
- Location: Tucson (Wildcat Country), Arizona
RonnyL wrote:Perfect Dusty, I agree the one on the right - even on each end.
Someday I'm going to learn how to do those drawing online.
Down load a free copy of Sketchup and start now. I am having a lot of fun with it. The program is far more powerful than I can use but maybe someday I'll be able to do more than the simple things.
Just Google "Sketchup" and you'll find an offer to download the program.
http://www.sketchupfordummies.com will give you an excellent set of startup instructions in video format.
"Making Sawdust Safely"
Dusty
Sent from my Dell XPS using Firefox.
Dusty
Sent from my Dell XPS using Firefox.