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Hand Tools!

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Waddy

Photobucket Build Album Library

Sound Clips of most of my guitars

There's this. It's not a hand tool!



Some info. http://www.ogdeninc.com/rotoplane/rotoplane.htm

Michael Gurian uses something similar. Sort of a giant Safe-T-Planer. Gives a very nice surface.

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formerly known around here as burbank
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http://www.patfosterguitars.com

OK, so we are back to the drum sander for the rest of us...

Mike

Actually, some people use routers on a form with great success and accuracy. All you need is a flat form and a wide cut surface cutter. Takes a bunch of passes, but is very accurate, and versatile. I recently saw this method being used by a classical builder of some experience, but can't find the link or remember the name right now.

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Waddy

Photobucket Build Album Library

Sound Clips of most of my guitars

Ya see!!! You ask enough questions and you start to get some interesting answers. Is there a router bit that is adequate? Like a safti planer? Without enough width, this could take all day.

I would like to throw some ideas around. Maybe some kind bars and linear bearings slider? How would height adjustments be made? Could you be talking about a plunge router? Would you trust something like this for spruce tops?

Mike

http://www.amazon.com/Magnate-2704-Bott ... B0006B0PX0

For planing.

Mike

Waddy, I studied a few of those designs. Looks like two sleds and some kind of cross bar mechanism to mount the router to. Would a laminate trimmer work or would I need a bigger router? I am guessing a plunge router would be the right ticket. Also, how to hold the work piece... double sided tape?

Mike

Im working on building a drum sander myself. A couple of drum ideas I have are a 3 1/2" diameter 4' piece of conduit. I also have a 8" diameter (1/4" wall HEAVY) piece of "well casing". used around here when they drill a water well to line the well. Going to dads tommorow, he has a large lathe and were going to engineer the drum out of one of these hunks of metal.... I have a 1/2 hp Baldor motor to drive it with. 20 inch width sound good?

Judge

Everything I have read indicate a 3/4 to 1 HP motor. Of course, the pulley ratio and RPM counts. I read that Jet & others use a 1700 rpm drum speed. So if your 1/2 hp motor spins at ~3600, and you use a 2:1 reduction, you might be OK.

mike

Mine is built very similar to Pat's (hi Pat .. nice to meet you in person in Montreal on the weekend !!)

However, it differs slightly .. I had the hook and loop on the drum, but got tired of it taking so long to get the alignment just right when reloading new paper .. so off it came, and I replaced it with some auto gasket material as a backing for cushioning, contact cemented to the 6 inch drum
(mdf disks, 3/4 shaft, 3/4 HP on a hinged plate - its all right out of the Laskin/Wren article in FFW years back). Now I have a morticed-in lock wedge at one end, and use a stainless band clamp at the other .. the hook and loop paper stretches as you use it, so its nice to be able to easily tighten it up.

No worries on the non keyed shaft either .. the 6 inch pulley is screwed intothe MDF drum ... no slippage there !!!

If you think about it a bit, and have the room, leave one end of the shaft long,and hang it out beyond the box of the sander. Get a flange mount, and a 12 inch round piece of 1/4 inch steel or aluminum mounted to it, some more hook and loop, and presto ... 12 inch disc sander. Mine is indespensable.

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Tony Karol
www.karol-guitars.com
"let my passion .. fulfill yours"

Tony,

I do not know what you mean by a morticed in lock wedge. Pics?

So I take it you are using standard sheet paper (cloth)?

Mike

I will just have to put everything together and try it. This Baldor just fell into my hands so nothing lost if it doesnt work. I have some larger hp motors but they are 3 phase and I would have to build a phase converter or adapt to the one on my drill press.
I like the automotive gasket (rubber?) backer idea, I have a bunch of black rubber similar to floor mat material squirelled away somewhere, I have used it to back sanding blocks with good results.
Actually if I used my 3 1/2" conduit as a drum with a layer of 1/4 " rubber that is a 4" drum!. thinking out loud here...

Sorry i looked for some pics but couldnt find any on the PC .. will have to take some I guess.

Anyway, a better description - The lock in at one end is a very simple idea .... make a mortice on the right end of the drum about 1 inch wide by 2 inches long, about 7/8 deep (kind of like a stopped key way). Since I am using 4.5 wide klinspor 80 grit velcro backed stearated paper but without the velcro on the drum (try saying that 5 time fast - I use this because its the only stearated I could find - its great stuff !) I wanted some way to lock it in tight with no bunching .. so the lock piece is a simple wedge that fits into the mortice, and has a wood screw that goes intot he drum at one end of it. The paper wraps under enath, then you simply tighten up thge screw - that end NEVER comes loose - but then, since I am wrapping the opposite way, it really cant anyway. The end gets held down via a 6 inch band clamp - make sure to use a little piece of veneer or something similar under the clamp area of the band - it helps prevent bunching as you tight the band, as it gives the band something to slide over.

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Tony Karol
www.karol-guitars.com
"let my passion .. fulfill yours"

If you are interested, I can send you a set of plans for the old Kuster drum sander. I own one, but I did not make it. I purchased it off of Ebay. It works great. Others in this group have Kusters also. I think you could made the drum from MDF stacked like has been mentioned in this article. Mine has a metal drum. The rest of the materials including the gears, pillow blocks etc are all available on the web or at a store like Grangier. There are a couple of items that you might need to fabricate, but a good machine shop could do it easily. The unit uses a infeed and outfeed roller instead of a belt. You could probably pick a couple of rollers up at a offset print shop or a company that refurbishes printing rollers. I see them on Ebay once and a while. Heidelburg makes a 28 inch press and those ink rollers would be ideal. The sturcture of the unit is all wood. If you are interested, e-mail me your address at khageman@mi-connection.com and I will see you get a set of the plans.

Ken