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There was recently a discussion started on how to obtain rough saw cut marks on scale material.
This is how I did it.
There are certainly other methods. The approach I am presenting is simply one I was tooled up to implement & one easily reproduced. It could be accomplished on a drill press.
It's most commonly seen on bone scales ......
However.. the original query concerned hardwood. Toward that end .. I used scraps of a wood laminate and Desert Ironwood. Above is the initial result in the laminated wood material. The carbide cutter is offset ~ 2 inches from the center of rotation. The cuts are spaced @ ~ 3/16 of an inch. The depth of each cut is ~ 1/16 of an inch.
The initial 4 cuts in the Desert Ironwood used a radial offset of 2 inches for the carbide cutter .. the depth again was ~ 1/16 of an inch ..however.. the distance between the cuts was reduced to ~ 1/8 inch.
I reduced the offset radius of the cutter from 2 inches to 1 inch for the inner 5 cuts. The depth of each cut & the distance between the cuts remained the same.
Note: One of the carbide cutters was removed for this operation.
I found the result acceptably close to that found on the scales of the Rough Rider. I believe .. once contoured for scales .. it would be a good match.
I cleaned the results up by briefly sanding with 400 grit wet/dry sandpaper.
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A similar Carbide Tip Adjustable Circle Cutter is available from Harbor Freight for about $6.oo. I used a Grizzly G8689 Mini-Mill ..however.. the same could be accomplished with a simpler drill press.
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Obviously .. the results could be modified by changing the settings from those I implemented .. i.e. offset radius of the cutter .. distance between cuts .. depth of cuts.
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This is one method of obtaining that saw cut look that was originally queried.
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Enjoy
D ale
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Good idea there Dale, I wondered when I saw the incoming email before I hit the real page here how you would do it with a drill press, but your photos make that clear.
Since I moved from Ohio to Virginia we bought a townhouse, kids are grown and gone, I have no garage any more and anyway I have not had much in the way of tools since I came from Africa 17 years ago. So I'm very limited but a drill press, bench grinder and sander might be in my future. :-) Small models that I can store in a small shed and bring out to use in the little back garden on a portable bench every now and then but I can see I will need a few more tools.
Dale,
I am very impressed with this. Considering we discussed this briefly, I only found the one example online and it was not quite what he was looking for. I think this is going to fit the bill much better
Thanks, Jan.
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After giving some thought to the problem @ hand .. I wanted to come up w/ a method I felt was safer & easier to implement. A method requiring tools which more of us would have access to.
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Safety.
Well .. common sense is still required ..but.. a bent & therefor unbalanced saw blade spinning @ a high rate of speed .. I find scary.
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Further .. so much was dependent on the "feed rate" of the "saw method".
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Required tooling .. a $6 part from Harbor freight & a simple drill press.
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Note: When making the cuts described above .. do them slowly. i.e. a few thousands of an inch @ a time .. until the desired cut depth is achieved.
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This method .. offers more control & a more reliable outcome .. imo.
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Thanks again.
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Enjoy
D ale
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