Blade/bit height setting device.

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  #1  
Old 11-14-04, 01:59 PM
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Blade/bit height setting device.

What's the absolute best, fool proof thing out there for adjusting table saw blade and/or router bit height?
 
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Old 11-14-04, 02:39 PM
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older'ndirt,

What's foolproof for me is to measure the height of the blade or bit with a 6" rule , make a test cut and then check the cut with the same rule.

This thing looks pretty cool:

Click image:
<img src="http://www.leevalley.com/images/item/woodworking/markmeasure/88n8706s3.jpg">
Image credit: leevalley.com

Is this what you had in mind?
 
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Old 11-15-04, 07:34 AM
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GregH
That gadget certainly looks interesting. Will take another look at leevalley.com. They're the outfit with the 24 inch cabinetmakers' rule - wish they had a thirty six.
 
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Old 11-15-04, 10:51 AM
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I'm certainly no cabinet maker by any stretch of the imagination but,

I find that even if I take extra measures (pun intended!) to get the blade height set with a rule, the actual cut is not always exactly the measurement I set the blade to.
Could be play or motion in the arbor that I cant detect or how the wood slides across the table, I don't know.
 
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Old 11-18-04, 07:42 AM
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Seems like you'd have to know exactly the top of the blade arc and, perhaps, have some permanent mark to refer to each time you changed the height. If the insert plate was transparent, you could see the arbor and that would be a good reference.
 
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Old 11-18-04, 07:55 AM
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Gregs previous post makes sense. If the arbor moves ( up or down) while running it will change the height of the blade.(torque possibly).
 
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Old 11-20-04, 12:13 PM
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Majakdragon
I was thinking that, the arbor being the center of the blade circle, if you had it as a reference, a vertical (measuring) line would put you at the top of the blade arc but I agree with GregH - measure, test cut then measure again.
 
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Old 11-21-04, 05:40 PM
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Cool

For what it's worth, there is a really basic tool for this made by Empire tools, that costs less than a glass of beer. It's a flat alloy plate, 4 1/2 x 2 1/4 ins. that's notched in the centre to provide 19 or 20 measurements from 1/8 to 2 inches. Really easy to use for table saw, circular saw or router.
 
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Old 11-22-04, 06:53 AM
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If the wings on the table saw aren't perfectly aligned (i.e flat) with the table, the workpiece can 'tip' slightly and the cut won't match the setting.

I use an adjustable square to make my settings and run a piece of scrap to check it.
 
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