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Sanding Disks and Radius Interface Pads (Read 420 times)
 
Don Stephan
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Sanding Disks and Radius Interface Pads
Oct 3rd, 2016 at 7:29pm
 
If the sanding disks are about 2 3/8" diameter, and the rounded or radius interface pads are much smaller diameter where the pad meets the sanding disk, has anyone else had the sanding disk fold over around the perimeter?  Wondering if 2" diameter sanding disks would work better with the radius pads.
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Ed Weber
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Re: Sanding Disks and Radius Interface Pads
Reply #1 - Oct 3rd, 2016 at 7:51pm
 
Many sanding discs are designed oversized to do just as you described.
If the disc were the same size as the pad or interface pad, when you either tilt too far or touch something with the spinning edge it would tend to cut into the wood causing damage.
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Tony Rozendaal
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Re: Sanding Disks and Radius Interface Pads
Reply #2 - Oct 4th, 2016 at 7:19am
 
If the disks you are using are 2-3/8 inch diameter it sounds like they are Vince's disks from Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to Login or Register . If so, I recommend you call him and talk to him directly about any questions you may have.  You will find he is very personable.
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Don Stephan
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Re: Sanding Disks and Radius Interface Pads
Reply #3 - Oct 5th, 2016 at 7:18pm
 
Before posting here, I did exchange emails with the vendor.  I expected some explanation for the difference in sizes and discussion, more than most people don't have problems and I also sell 2" pads.  I don't want to keep an inventory of 2" pads and 2 3/8" pads, so if I have to switch to 2" for the radius pads I'll get 2" disks from Jon at our local woodturning group and stop using 2 3/8".
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Ed Weber
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Re: Sanding Disks and Radius Interface Pads
Reply #4 - Oct 6th, 2016 at 8:12am
 
Don, I use the 2 3/8" pads and if I need/want to have a disc the same size as the pad I use a 2 3/8" interface pad. It solves both problems of disc to the edge of the pad and double inventory.
Just a suggestion.
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robo_hippy
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Re: Sanding Disks and Radius Interface Pads
Reply #5 - Oct 6th, 2016 at 9:51am
 
The radius firm pads from Vince are excellent for sanding the insides of bowls, and any concave surface. They work a lot better than the firm square edge pads. I have found that if I use a pad that is the exact same size as the disc, almost every time I will have 'mystery' scratches on the wood. I eventually figured out that these scratches came from the edge of the pad, and some times, especially when I was using thicker abrasive discs, the scratches would come from the disc as well. The idea of the over sized disc is to prevent this, and it does a good job. Since the disc is larger than the pad, when it goes over the edge, it has to flex, and that causes the creases. No problem with them other than on the coarse grit pads, some of the abrasive breaks off. If you have seen the wave discs that are scalloped on the edges, the cut outs pretty much match the creases.

I use 3 inch discs, well 3 3/8 from Vince, when ever I can fit it inside a bowl. It has over twice the surface area of a 2 3/8 inch disc, so more miles per disc, and less sanding time.

robo hippy
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