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Re: Sliding Table ¡°90 Degree Jig¡± #sawsetup


 

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Hi David B and Michael:

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Funny you should mention the flatbed CNC. Although not the same, I have been pondering how much use I¡¯d get out of a Shaper Origin. That tool would fit nicely somewhere in my shop!

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Thanks David for your vote on the vertical method. I think the clean corners are swaying me strongly for that option. I¡¯ve wondered if I make a very accurate registration jig and use a small pattern bit (I can get an 8mm dia. bit from across town) to establish the majority of the 20mm flat across the joint, then there would be very little chisel work at all:

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  • corners squared by the saw blade
  • majority of waste drilled out
  • shoulder established by the pattern bit
  • minor chisel work to finish.

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Your jig making has always been a source of inspiration for me. Your lock mitre jig is especially egregious! I absolutely love it. Of course, now I know I should have made a much larger vertical jig that does not depend on the crosscut fence for registration. Something like what you¡¯ve done would have been much better. Cheers.

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Warm regards,

Lucky

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From: [email protected] <[email protected]> on behalf of David P. Best via groups.io <dbestworkshop@...>
Date: Wednesday, 10 July 2024 at 10:01
To: [email protected] <[email protected]>
Subject: Re: [FOG] Sliding Table ¡°90 Degree Jig¡± #sawsetup

I actually like your original concept of using the rip as a bump-stop, a 400mm blade cutting both edges, and a jig on the crosscut fence to hold the material vertically. ?Here¡¯s a couple more jig I¡¯ve made to stimulate your thinking. ?I could quibble over the actual jig configuration (hence these photos of jigs I¡¯ve made to hold vertical materials on the slider as food for thought).

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This is for cutting lock miter joints:?

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This one is for finger joints - which is a shallower type of thing you are doing:

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David Best
DBestWorkshop@...
https://www.flickr.com/photos/davidpbest/collections/
https://www.youtube.com/@David_Best



On Jul 9, 2024, at 3:18?PM, David Luckensmeyer via groups.io <dhluckens@...> wrote:

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Oh wow! The video came through. I love it. No one would even think the drawer is there! Thanks for sharing.

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Lucky

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From: [email protected] <[email protected]> on behalf of Brian via groups.io <brian.milidrag@...>
Date: Wednesday, 10 July 2024 at 08:12
To: [email protected] <[email protected]>
Subject: Re: [FOG] Sliding Table ¡°90 Degree Jig¡± #sawsetup

Lucky, as I further thought about my suggestion I realized it was lunacy. I think you are correct about returning to the horizontal setup. I know we are talking about a lot of work for 280 repititions!?
I had a few do overs and re-designs as I progressed but ultimately was very happy with the result.?

To answer?your question, it is a drawer that holds DVD¡¯s on the bottom level, and Blu-rays on the top level as they are both different size cases. The drawer was incorporated into a raised panel staircase I built 30 years earlier and had always planned to make a drawer similar.

There is hopefully an attached video below showing final install??

The CMT was excellent; best dado I ever had but I ran it on a cabinet saw, not on my K700S. I used a simple ¡°box joint jig¡± that we all learned in woodworking 101 but made a mistake thinking I could do the sides separately and still have things line up. A couple of tries changing methodology were necessary. The drawer empty without the drawer front was over 75 lbs made of Maple. I used Blum slides (Blumotion) with ?¡°Tip-on¡± added for push to open tech to eliminate visible exterior hardware.

Kind regards,


Brian D. Milidrag

Cell?248.765.8411

brian.milidrag@...

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On Tue, Jul 9, 2024 at 5:41?PM David Luckensmeyer via <dhluckens=[email protected]> wrote:

Imran:

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Thanks for your ideas. You¡¯re correct about the slotting blade. If I go the vertical machining route I¡¯ll need nearly every bit of the 400mm blade¡¯s depth of cut. If I were to go back to the horizontal setup, I could remount the dado blade, set it to maximum height, and make a partial cut. This may well be a better solution because it gives me the exact width (to match the existing shallower trenches).

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You have rightly identified the time-wasting point of needing to take two passes (minimum) and then deal with the waste by drilling a hole with a forstner bit to get rid of the septum. I would then have to mark and chisel the waste which is fine for 1-10 joints, but not 280 trenches¡­

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Brian:

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That looks awesome what you¡¯ve made. Is it a drawer insert for plates? I¡¯m very curious what you thought of the new CMT dado stack? What did you like? What didn¡¯t you like? Thanks for sharing. I¡¯d rather not run two 400mm blades on the slider. So much to go wrong! EEK.

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Joe:

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Love those jigs. Pictures speak volumes. So many ideas to learn from. Thank you.

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Methodology Quiz

How would you make 280 non-through cuts that have to be precisely machined at 125mm deep and 20mm wide?

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  1. Vertical method as discussed to date using the 400mm sawblade, to make two cuts to establish each shoulder, drilling out the waste, and then A) mark a line and use a chisel to square up the joint, or B) use a router and small pattern bit to establish the shoulder and then chisel out the corners.

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  1. Horizontal method using the same dado stack that machined the shallow trenches, dado raised all the way up for the stopped cut, and then employ either option A or B above to clean up the joint.

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  1. Rely on the existing shoulders of the trenches (5mm deep on both sides), and use a router and pattern bit to obtain the 125mm ¡°half lap¡± joint, and then square up the joint using option A or B above.

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  1. Something else?

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I personally can¡¯t see a way to avoid handwork of some kind. The reason why I favour the vertical method (as I¡¯m calling it) is because I can get precise and square internal corners for the stopped cuts. I find it much easier to clean out the waste if the corners are already established. I have never liked chiselling corners square, even with a square chisel (e.g. Veritas). And I would hate chiselling 560 corners!

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Thanks in advance for your input,

Lucky

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From: [email protected] <[email protected]> on behalf of Joe Calhoon via <joecalhoon=[email protected]>
Date: Wednesday, 10 July 2024 at 06:41
To: [email protected] <[email protected]>
Subject: Re: [FOG] Sliding Table ¡°90 Degree Jig¡± #sawsetup

I have another more stable jig for demonstrating tenoning on the slider that could be adapted for this also.


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