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Radius Dish - 28 Feet

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Project by HankLP posted 10-07-2019 01:34 AM 954 views 6 times favorited 7 comments Add to Favorites Watch

Finished first radius dish. Used the radius template from the last project to make the 28 foot radius guide rails for the router sled. 3/4” plywood rails were capped with 1/8” plywood to provide a smoother running surface for the sled. The attempt to make a dust collector attachment didn’t work out well so the project was moved outside where the 3/4” MDF made a real mess. Drawer pull knobs were used to aid in the spinning of the dish. The surface came out much smoother than expected so minimal sanding will be required.

The radius dish will be used to build a slight arch into the tops of ukuleles and someday maybe a guitar or two. The 28 foot radius guide rails will be swapped out for a 15 foot pair to make another dish for assembly of arched backs.

UPDATE (10/7/2019}:
Today I bonded a 24 inch round of 3/4” MDF to the back of the 28 foot radius dish with contact cement, and routed the 15 foot radius dish. I used contact cement because I Didn’t know if I could clamp it well enough to get a tight joint with Titebond. It rained on and off but I found enough rain-breaks to do the routing outside. The completed disc is 1-1/2 inches thick with a dish on each side.





7 comments so far

View swirt's profile

swirt

4334 posts in 3515 days


#1 posted 10-07-2019 01:53 AM

So clever! Nice work.

-- Galootish log blog, http://www.timberframe-tools.com

View DMiller's profile

DMiller

517 posts in 1016 days


#2 posted 10-07-2019 05:16 AM

Very nice. I’m really interested to see how it works. Glad to see as I sould probably make my self one of these!

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

View Jim Jakosh's profile (online now)

Jim Jakosh

23570 posts in 3649 days


#3 posted 10-07-2019 12:20 PM

That is a cool way to rout that dish pattern. Nice work on it!!

Cheers, Jim

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

View bigblockyeti's profile

bigblockyeti

6076 posts in 2264 days


#4 posted 10-07-2019 01:16 PM

Very cool, now if you could get parts from a potter’s wheel or a turntable of some sort you’d only need move the router from the perimeter to the center and let the tools do the rest of the work for you.

-- "Lack of effort will result in failure with amazing predictability" - Me

View TheSawDustWhisperer's profile

TheSawDustWhisperer

134 posts in 665 days


#5 posted 10-08-2019 01:28 AM

Good build on a complex design.

-- One of these days I’m going to build a dust collection system. Dusty Lungs

View HankLP's profile

HankLP

110 posts in 1045 days


#6 posted 10-08-2019 05:37 AM

Thanks for the comments, they energized me to complete the project. Today I bonded a 24 inch round of 3/4” MDF to the back of the 28 foot radius dish with contact cement, and routed the 15 foot radius dish. I used contact cement because I Didn’t know if I could clamp it well enough to get a tight joint with Titebond. It rained on and off but I found enough rain-breaks to do the routing outside. The completed disc is 1-1/2 inches thick with a dish on each side.

View Grumpy's profile

Grumpy

25811 posts in 4394 days


#7 posted 10-27-2019 01:19 AM

Nice job and congratulations on your ‘Daily Top 3’ award.

-- Grumpy - "Always look on the bright side of life"- Monty Python

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