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Don't know if the brass screws would make this an expensive jig, but
http://www.woodsmithtips.com/2012/01...bit-depth-jig/
http://www.woodsmithtips.com/2012/01...bit-depth-jig/
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I think in straight lines, but dream in curves
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I think Woodsmith has a pretty good TV show. The brass screws would not make it an expensive jig to make, and it's a pretty simple concept.
EdDo you know about kickback? Ray has a good writeup here... https://www.sawdustzone.org/articles...mare-explained
For a kickback demonstration video http://www.metacafe.com/watch/910584...demonstration/ -
I saw that, good idea. But there's lots of other step measuring plastic jigs to compete against. Got to keep this one calibrated - it can get off if someone messes with it or if you drop it.
Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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Do you know about kickback? Ray has a good writeup here... https://www.sawdustzone.org/articles...mare-explained
For a kickback demonstration video http://www.metacafe.com/watch/910584...demonstration/Comment
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I have never bought any, but last I checked at BORG, they only had plated screws, not all brass. I am assuming its a specialty screw which in my mind = $
I think in straight lines, but dream in curvesComment
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If it turned out that the screws were too expensive, and I really liked the jig, I wouldn't be afraid to use steel screws, if necessary. After all, you just barely want the bit to make contact with the screw. Problem solved.
EdDo you know about kickback? Ray has a good writeup here... https://www.sawdustzone.org/articles...mare-explained
For a kickback demonstration video http://www.metacafe.com/watch/910584...demonstration/Comment
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How about using dowels instead? Glue them in slightly long, then file to length. Miniscule chance of bit damage that way and if the dowel is ever damaged it's easy to cut it flush with the jig and drill a new hole to replace it.
Or, instead of brass screws, try brass rod. Not as easy to adjust as screws... but can still be filed. Or, if you have a tap-n-die set, you can thread your own "screws." I may try this myself... I like "machining" stuff and have tap-n-die stuff.
mpcComment
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The problem with a measuring jig like this is that its accuracy depends upon you transferring the measurements from some other device, removing you one more time from the reference and building up error.
Setup bars and jigs that are machined or cast in plastic are generally right on the mark the CNC programming or the mold having been precisely done one time. With this jig you have to have a reference setup bar to set the screw height and then lock it in. Maybe a dab of superglue on a screw set in wood locks it but I'm not sure I'd bet on it.
Neat as it seems, after consideration, this is one item I'd buy a jig and not make and have to tweak. And you've seen me describe how to cheap DIY jigs before.Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questionsComment
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It's cool, but I think this is one of those times where you just buy something and get it over with.
I'm partial to this one.
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