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Tool Tip #21: Drilling Dimples or more correctly Pips in wood

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Blog entry by robscastle posted 04-03-2016 12:55 AM 1415 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 20: Hollow Chisel Mortiser Tune Up Pt3 Part 21 of Tool Tip series Part 22: Yonico Router bits »

In my Woodworking adventures I have been attempting to cut Dimples or Pips in wood.

What I have discovered may be of interest.

The various methods I used.
1 . Router cove bit in a Radial Arm Drill.

This worked to a varing degree and gave equally varing results.
However a drill press cannot obtain the RPM expected for routing good results.

2. Hand held die grinder and carbide bit
Fail (see the raggedy yellow pip)
Too hard to hold in position

3. Die grinder in drill Press
Produced reasonable results but again does not now spin at the accepted speed.
As a result it tends to clog dead center and burns the wood.

3 HSS rotary rasps
Fail, again
constantly clogged with wood
almost useless, sorry about that supplier!

So how do you do it with acceptable results.

Suggestion 1.
Use a INSTY BIT (If you can buy one)

Suggestion 2.
Bench mount somehow a carbide die grinder in a drill press, or a dremmel.

Suggestion 3.
Grind a twist drill with a curved cutting edge, or

Suggestion 4
And possibly the most appropiate these days
Use a CNC

-- Regards Robert



4 comments so far

View Joe Lyddon's profile

Joe Lyddon

9447 posts in 3518 days


#1 posted 04-03-2016 04:38 AM

Yep, to really get it RIGHT… The CNC approach would be painless!

Use a computer program to draw what you want, with dots where you want them… Print it to actual size.

Find someone with a CNC setup & ask if it would be hard to do… (really not very hard)...

BINGO… You supply the wood & he supplies the CNC… You’re done…

Then the other challenge will be to paint the dots without messing up everything else…

Just some thoughts of how it may be done…
Finish the wood in it’s final stain, lacquer, etc., etc. ... Let it cure really good…
Cover the whole thing with a thin good coat of wax…
CNC the Dots into the wood through the wax…
Just slop the Paint enamel over & into all of the dots & finish with lacquer… Let dry really good.
Using Paint Thinner, wipe off all of the wax… lightly sand with a high grit to get it all smooth…
Touch up, etc. as desired…
Cut it all up to get the Dominos… Finish the edges… All done.

I probably would try the Drill press method & make it work... wax a little around each dimple, drill them setting up stops that would cover all dimples in that position, setup for another set of dimples & drill’em, etc.
With a fine point brush, paint the dimples & let dry real good.
Sand it all smooth for final finishing.
Dab wax into all of the dimples very carefully…
Stain & finish the remaining wood… etc. etc.

Just blabbing off the top of my head… Hope you get some ideas… That work…

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View Roger's profile

Roger

19881 posts in 2270 days


#2 posted 04-03-2016 11:58 AM

7 come 11…............Roll Em

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. Kentuk55@yahoo.com

View JoeinGa's profile

JoeinGa

7483 posts in 1473 days


#3 posted 04-03-2016 12:52 PM

”3. Die grinder in drill Press
Produced reasonable results but again does not now spin at the accepted speed.
As a result it tends to clog dead center and burns the wood.”

If you are going to put a dollop of paint in each pip, the little burn spot wont matter.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View JoeinGa's profile

JoeinGa

7483 posts in 1473 days


#4 posted 04-03-2016 12:55 PM

Here’s another thought on using that die grinder bit. What if you clamp each domino up on it’s SIDE and push it into the side of the cutter? Should get the same pattern (because the cutter bit is round) and it may not clog because gravity will pull the shavings away

-- Perform A Random Act Of Kindness Today ... Pay It Forward

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