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Radius Dishes?

Total Topics: 18
Total Posts: 107
Hi all,

Working on my second kit, one from John Hall (Blues Creek Guitars). First, let me say he'd be a very rich man if he charged me for all the questions I've asked so far. Kudo's to John!

I'm at the stage where I need to radius my sides. My first kit was a Stew-Mac, and I used the sanding stick in their instructions on my first kit. I am not entirely sure I got the angles correct when I made it, however, as it required a lot of force to get the back on tight.

Is there an inexpensive, more accurate, alternative to a sanding stick? I've read about radius dishes -- are they worth it?

Thanks all

May 02, 07 | 6:13 pm

Total Topics: 32
Total Posts: 145
Hey -

I'm on my second guitar (going slowly...) did the Stewmac sanding stick on the first. For the second, a LMI OM, the sides were not shaped at all, as they were on the Stewmac, so wasn't confident that the sanding stick was going to do the job.

On the other hand, didn't want to shell out the money for a sanding dish. After some back-and-forth with Ted, I figured out a way to make my own - just needed a router and plywood.

THe method I used was captured in a post here: Create the Curve

David had a different method with good results too.

So - to finally answer your question - yeah, this worked really well for me. Made two dishes, 15' and 30', used double-sided tape to attach four sheets of sandpaper, and went to town (after planing). Worked great

Bill has also posted a way, in one of his build journals, to do this with marking off measurements from the plans, planing it down and finishing it off with a sanding board.

- BillM

May 05, 07 | 8:47 am

Total Topics: 22
Total Posts: 158
I've spent today trying to make my own dishes, it ended it nothing but dust. Some how my curves for the 15 foot and the 30 foot radius ended up being exactly the same... or at least so close it was hardly worth while routing out the dish.

Anyway, the point of the post is that I found this thread on making sanding dishes and thought you guys might like to add it to the grey matter.

Apr 13, 08 | 5:28 am

Total Topics: 6
Total Posts: 295
I have two sanding dishes which were order from John at Blues Creek Guitars. His price is the best I could find, and if you plan to build more than one guitar these are great. They are so much easier to use than anything else I had tried.

Apr 13, 08 | 7:33 am
blues creek guitars Authorized Martin Repair Ctr

Total Topics: 52
Total Posts: 1011
the sets that I ship are set up and contoured. I use 28 on the top and 15 on the back. check out my site in the blog section and you will see what was done to help you understand the geometry
I am here to help

Apr 13, 08 | 1:31 pm
Dennis Weatherly

Total Topics: 73
Total Posts: 651
I also have a set of John's radius dishes and one of his kits. They work well together - no surprise there! I brushed a few coats of KTM-9 on the dishes to help seal them from moisture before I attached the sandpaper.

Apr 13, 08 | 6:57 pm

Total Topics: 22
Total Posts: 158
and let me add (having tried to make one)... If I didn't live 10,000 miles away and be slugged with the transport cost, I'd be clicking on the list of suppliers at the front page and ordering one - to save the grief.

Apr 14, 08 | 5:19 am

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