archimedes trammel

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Project by ken_c posted 10-12-2013 02:19 AM 2268 views 23 times favorited 7 comments Add to Favorites Watch

gearing up to make a lamp for the kid and needed to make a oval so…

Precise holes makes for a very smooth accurate oval…

7 comments so far

View waho6o9's profile


6314 posts in 1620 days

#1 posted 10-12-2013 03:29 AM

Clean work, thanks for sharing.

View deon's profile


2367 posts in 2069 days

#2 posted 10-12-2013 05:01 AM

I was about to make one myself but unsure of exactly how. Will do it like yours. Thanks for posting

-- Dreaming patterns

View DeLayne Peck's profile

DeLayne Peck

414 posts in 1245 days

#3 posted 10-12-2013 01:27 PM

That is so cool! Thanks for sharing a bit of master jig building!

-- DJ Peck, Lincoln Nebraska. I think of my shop as Fritter City. I am the Mayor.

View becikeja's profile


387 posts in 1856 days

#4 posted 10-12-2013 02:26 PM

Nice job

-- Don't outsmart your common sense

View gfadvm's profile


13787 posts in 1733 days

#5 posted 10-13-2013 12:53 AM

Excellent job. I’ve made several different designs and your method of doing the channels is by far the quickest!

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View ken_c's profile


290 posts in 2205 days

#6 posted 10-13-2013 12:58 PM

I actually made three – the first used dovetail ways and slides – to much binding, the second is the square channels but I needed to make a smaller one to get to the size oval I need. The one pictured represents the smallest I can go with the router. I might be able to go a bit smaller if I were to make a clamp to hold the router motor but for now, this is fine. One lesson learned is to drill the holes with a slightly undersized bit for the trammel holes and the slide bolt holes – The tighter the better for a smooth oval.

View Jim Jakosh's profile

Jim Jakosh

14018 posts in 2149 days

#7 posted 10-21-2013 02:54 AM

Very cool tools. I’ll have to make it a favorite!!..............Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

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