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12th January 2013, 07:07 PM #1GOLD MEMBER
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How to square Incra gauge to blade
Hi all,
I had a little trouble today in my workshop with my Incra 1000HD mitre gauge. I'm not getting 90 degree cuts - I only noticed it at the end of the day but I didn't notice it earlier on.
I got my square (it's definetely square) and used it to align my blade against the gauge, then I locked it down and made the cut and it's not square. The edge I'm using against the gauge is straight and true so I'm lost as to what it could be? Is there a better way to set it to 90?
I thought that my newly made zero clearance insert was perhaps high in the middle, but I dropped it down even lower and the problem is still there. I also measured from the front and back of the blades and got 0.05mm difference from the same tooth front to back, could this be it?
Thanks for your help,
Andy
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12th January 2013 07:07 PM # ADSGoogle Adsense Advertisement
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12th January 2013, 07:20 PM #2
Is it the square or the saw set up?
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12th January 2013, 07:40 PM #3
Forgetting the gauge for now, have you checked to see the the blade it parallel to the slot?
If the blade isn't parallel to the slot, no amount of setting the gauge square is going to help.Cheers
DJ
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12th January 2013, 07:51 PM #4GOLD MEMBER
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Re: How to square Incra gauge to blade
Yep there is 0.05mm difference from front to back measuring the same tooth. This couldn't be the reason surely?
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12th January 2013, 07:55 PM #5
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12th January 2013, 08:14 PM #6GOLD MEMBER
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I hope it is cause it's an easy fix. I only discovered it when I was about to leave the workshop so i'll adjust it tomorrow and report back. I just thought it was such a small amount. Thanks.
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12th January 2013, 08:29 PM #7
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12th January 2013, 08:36 PM #8GOLD MEMBER
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Thanks Paul - yes I've used his videos as a guide to tune my table saw and found it excellent. I'll use his method to adjust the blade tomorrow..
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12th January 2013, 09:27 PM #9
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13th January 2013, 12:56 AM #10
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13th January 2013, 09:59 AM #11
I tend to agree. 2 thou on the blade is pretty good. You could tweak it and get closer but I would check the fit of the bar in the mitre slot and check for movement on the gauge. One of the mounting screws may be a tad loose.
Those were the droids I was looking for.
https://autoblastgates.com.au
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13th January 2013, 10:14 AM #12
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14th January 2013, 12:40 AM #13
and also check arbor run-out on the table saw.
Cheers
Hilton
"Life is off the main road."
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15th January 2013, 08:18 PM #14GOLD MEMBER
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Ok, I jointed flat one face and one edge and cut a perfect 90. There is no movement, everything is tight but I occasionally get cuts that are off 90. I think the timber is moving when I cut, so I'm thinking of puting an auxiliary fence with 120 grit sandpaper to hold the piece in place.
Does anyone have any pics of their setup with the sandpaper? Or any other suggestions?
Thanks,
Andy
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17th January 2013, 02:24 PM #15
Rather than sandpaper, I use Griptape, the stuff the skaters use on the decks of skateboards. It is meant to grip, not sand. It has a strong self-adhesive back. You can get it at sports stores. It comes in sheets as big as a large skateboard deck so one sheet will cover a lot of jigs. It binds well to timber, mdf and metal.
DougI got sick of sitting around doing nothing - so I took up meditation.
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