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Mackintosh Keyhole cutting

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Forum topic by buck_cpa posted 11-08-2014 05:54 PM 993 views 0 times favorited 5 replies Add to Favorites Watch
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buck_cpa

147 posts in 1352 days


11-08-2014 05:54 PM

Topic tags/keywords: mackintosh keyhole

Anyone have any experience with cutting Mackintosh Keyholes? I want to make a coffee table with this detail cutout, but not sure on the best tool(s) – bandsaw, scroll saw, router templates, etc.

Any ideas or experience is greatly appreciated. See below for an example.

http://www.dryadstudios.com/mackintosh_keyhole_bed.htm


5 replies so far

View CharlieK's profile

CharlieK

467 posts in 3257 days


#1 posted 11-08-2014 06:01 PM

I haven’t made that exact design, but if I did I would make a template and cut them out with a router.

-- Adjustable Height Workbench Plans http://www.Jack-Bench.com

View bondogaposis's profile

bondogaposis

4032 posts in 1816 days


#2 posted 11-08-2014 07:50 PM

A router template would be the way to make these, especially because they are so many. Some of the waste could be removed w/ Forstner bits prior to routing. You’ll still have to work the points w/ a chisel.

-- Bondo Gaposis

View pintodeluxe's profile

pintodeluxe

4856 posts in 2278 days


#3 posted 11-09-2014 02:54 AM

I made that bed, and used a full-size template and router to cut out the pattern. I used a 1/4” spiral bit and a bushing guide on the plunge router. If you start the cut with a large diameter bushing, then switch to a small diameter bushing it will make a very clean cut.
Actually I made two templates, one for the tall spade shape, and one for the short one.
Cutting the parts to shape is really quite easy. It is making a perfect template that takes some time.
Good luck. Feel free to PM me if you hit any snags.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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pintodeluxe

4856 posts in 2278 days


#4 posted 11-10-2014 04:51 PM

This is what my templates look like. To make the template I clamped a straightedge to the template and made the straight cuts at the router table. I sized the spade shape big enough that my 1/2” spindle sander would fit inside.

I simply clamped the pattern to the workpiece, and router about half way through. On the second pass the bit cut to full depth. I was expecting some chipout as the bit exited the workpiece, but the test cuts looks clean. So I skipped any hole drilling and just used the router.
Then I switched to a slightly smaller guide bushing and made a clockwise skim cut at full depth.
Good luck

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View buck_cpa's profile

buck_cpa

147 posts in 1352 days


#5 posted 11-11-2014 03:12 PM

Willie – that bed looks awesome. Thanks so much for the guidance. I’m planning to put this detail on a coffee table I’m planning to build. You are the man!

Buck

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