The Frankensander is ready to roll....ALMOST - Router Forums
 
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post #1 of 6 (permalink) Old 02-26-2012, 09:53 AM Thread Starter
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Default The Frankensander is ready to roll....ALMOST

Here it is, ready for the sanding belt. I've yet to fashion a stop for it.
this beast would make a great thicknesser....if I could only figure a good way to make some roller type hold downs that could easily be adjusted.
Any ideas????

The Frankensander is ready to roll....ALMOST-022.jpg

Gene Howe
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post #2 of 6 (permalink) Old 02-26-2012, 10:07 AM
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Gene-meister, That thing looks really cool! Recently a post about kickback that photographically documented slow-motion of a guy nearly cutting his hand (he did this on-purpose) for illustrative and educational purposes was on this forum. You can search "kickback" and certainly find it. BobJ3 provided some very nice photos (as he so often does) that showed a way of using commercially available "rolling hold-downs" for table saws and or router tables. Something like that immediately comes-to-mind.
As far as something to keep it from becoming a "bullet" how about something like the (overhead) caution of height entry sign at a parking deck? Make it adjustable and let it "stop" the workpiece from over-passing the belt.
My wife's dad used to own a furniture business called "Roswell Seating Company" in the northern portion of metro Atlanta, GA. He had a purpose-built machine that could sand a 28 foot long church pew all at the same time. The sanding belts were custom-made for him and were over 60 feet long. There were numerous (rolling) pneumatic "tensioners" that maintained amazing uniformity of pressure on the whole workpiece!

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post #3 of 6 (permalink) Old 02-26-2012, 10:36 AM Thread Starter
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Thanks, Otis.
The stop/overhead road sign is a good idea.
Stockroom Supply sells a pair of rollers for use on their "V" Sander. I have a pair.
I'm thinking some sort of a 2 lane bridge (your sign analogy is sticking in my brain) spanning the belt to attach those rollers...maybe six or so (3 and 3).
I have a set of those "Board Buddies" rollers for the table saw. The way they are built, they both must go on the same side (on the TS fence). Consequently, they will not work opposite each other.
There is a table saw out feed doo-hickey that has 6 or 8 rollers in a frame supported on an adjustable leg. A system like that might work, over the sanding bed. Whaddya think?
I'm open to anything. (At 71 I can say that without getting in too much trouble )

Gene Howe
Snowflake, AZ

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post #4 of 6 (permalink) Old 02-26-2012, 10:53 AM
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Gene, if you look at how the commercial belt sanders are made you will be able to make use of their engineering. Use what you have built as a power feeder with a sanding belt conveyor. Either a drum or belt sanding mechanism mounted above it will give super results like TimeSaver machines.(Norm has a small one on the NYW)

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post #5 of 6 (permalink) Old 02-26-2012, 11:35 AM
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Awesome fabrication !!!!!!!

My process is reversed (sanding drum over adjustable height table http://www.routerforums.com/tools-wo...ss-sander.html)
Feeding stock against the direction by hand gives inconsistent results. With direction makes missles. Currently tinkering with feed solutions. Controlled feed rate can be achieved with resistance to slow the missle or motor driven against sanding direction.

Resistance to prevent missle can be fabricated with compression springs providing downward pressure on a fabricated yoke holding bearing for rollershaft on each side .

I plan to use a feed constructed from a canniblaized 3-wheel bandsaw. It has VS control and gearbox with attached to motor I will fabricate a drum from stacked 3/4" MDF discs and wrap it sprially with 1/4" thich 4"wide adhsive backed Neoprene from Grangers my tinkers supply store.

I think your rig would be most useful with the overhead stop bar as the benchtop belt sanders are used
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post #6 of 6 (permalink) Old 02-26-2012, 11:56 AM Thread Starter
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Thanks Paduke. I'll keep praying!
The sentiment expressed in your signature keeps all of us tinkerers tinkering.

Gene Howe
Snowflake, AZ

'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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