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Chris Paulick's Motorized Radius Sanding Dish
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Author:  Chris Paulick [ Thu Jul 31, 2008 7:32 pm ]
Post subject:  Chris Paulick's Motorized Radius Sanding Dish
Okay now that I've made my radius sanding dish I had to come up with a way to motorize it and this link shows what I came up with so far.

http://www.mimf.com/cgi-bin/WebX?128@12 ... @.2cb67e99
Video to follow hopefully by this weekend.
Author:  Brad Way [ Thu Jul 31, 2008 9:07 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Chris...very cool idea and setup. What is the RPM of the dish when everything is running?
Author:  Chris Paulick [ Thu Jul 31, 2008 9:36 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Well , even with the router set on the lowest setting it's still pretty fast. If I had to guess I'd say it's probably around 300 rpm. Seems like it might have gotten a little faster with the rollers installed. I just took of about 1/8" off the back rim profile in about 20 seconds with a light touch. I think it needs to be somewhat slower. I might try ordering a 3/4" drive roller with a 1/2" shaft to slow it down. I'm under the assumtion that it should be around 150 rpm. I'm also think that at the present speed I might go to a higher grit of sand paper like 120grit instead of 80grit.
Author:  John How [ Thu Jul 31, 2008 11:49 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Mine turns at about 100RPM which is quite nice using 80 grit.
Author:  Chris Paulick [ Fri Aug 01, 2008 5:36 am ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Mine works but it's a bit agressive at that speed and it would be easy to over do it. Maybe if I was use to it then it at that rpm. it would seem less risky. I think the slower rpm or higher grit psa would give me more control though which is what I'm after with a balance of speed. I'm going to try out my other router with a HF speed control tonight when I get back from work to see if can be set at a slower rpm too. Does anyone know a source of 120 grit 24" dia. psa.?
Author:  Brad Way [ Fri Aug 01, 2008 10:02 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Chris Paulick wrote:
Does anyone know a source of 120 grit 24" dia. psa.?


I think McMaster Carr has what you are looking for.
Author:  j.Brown [ Fri Aug 01, 2008 11:56 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Chris Paulick wrote:
Well , even with the router set on the lowest setting it's still pretty fast. If I had to guess I'd say it's probably around 300 rpm. Seems like it might have gotten a little faster with the rollers installed. I just took of about 1/8" off the back rim profile in about 20 seconds with a light touch. I think it needs to be somewhat slower. I might try ordering a 3/4" drive roller with a 1/2" shaft to slow it down. I'm under the assumtion that it should be around 150 rpm. I'm also think that at the present speed I might go to a higher grit of sand paper like 120grit instead of 80grit.


Nice idea for the table. Very cool. You would want to go with a smaller diameter shaft to slow it down, though...right?

-j.
Author:  Chris Paulick [ Sat Aug 02, 2008 9:01 am ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
I've put in my Porter Cable router and it works with my speed control that I use with heat blanket. I can start it from a stop. Yes the 1/2" shaft would have slowed it down by one half the rpm as the 1" drive roller.
Author:  Chris Paulick [ Sat Aug 02, 2008 11:37 am ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
http://www.youtube.com/watch?v=cp70792aMeU
Here's the video I put together after work last night. I definately need a new computer, I was up to 5:30 this morning trying to get it edited and had to finish it this morning.
Author:  Dave Anderson [ Sat Aug 02, 2008 12:34 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Very nice jig Chris [:Y:] Thanks for doing the video.
Author:  Chris Paulick [ Sat Aug 02, 2008 12:42 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Thanks Dave. Hey, I live in Tampa.
Author:  JJ Donohue [ Sat Aug 02, 2008 12:51 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Chris...I just watched your videos on You Tube. Very impressive and thanks so much for sharing. The videos that you and Todd have done lately are some of the best tutorials I've seen. [clap] [clap] [clap]
Author:  Dave Anderson [ Sat Aug 02, 2008 1:46 pm ]
Post subject:  Re: Chris Paulick's Motorized Radius Sanding Dish
Chris, Where abouts in Tampa do you live? We will have to get together
sometime soon. I would really like to see your shop and jigs.
And of course your geetars! :D
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