Slight widening of trenches - Router Forums
 
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post #1 of 8 (permalink) Old 09-24-2010, 03:04 AM Thread Starter
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Default Slight widening of trenches

I'm probably guilty of trying to teach my grandmother to suck eggs ...
Built a toy storage cabinet out of 16mm shelving - kind of a giant set of pigeon holes using egg crate construction.
Bought a 16mm straight cutter to machine the slots, but of course, 16mm won't fit into 16mm.
After machining the 16mm slot, 2 thicknesses of masking tape fixed to my circular router base gave a snug fit without having to readjust my offset guide fence.
Simple but effective!
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post #2 of 8 (permalink) Old 09-24-2010, 05:52 AM
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Hi Barry:

Welcome to the forums and thanks for the tip.

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post #3 of 8 (permalink) Old 09-24-2010, 07:21 AM
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Quote:
Originally Posted by bandsaw barry View Post
I'm probably guilty of trying to teach my grandmother to suck eggs ...
Built a toy storage cabinet out of 16mm shelving - kind of a giant set of pigeon holes using egg crate construction.
Bought a 16mm straight cutter to machine the slots, but of course, 16mm won't fit into 16mm.
After machining the 16mm slot, 2 thicknesses of masking tape fixed to my circular router base gave a snug fit without having to readjust my offset guide fence.
Simple but effective!
I'm a great believer in finding solutions to problems as they arise however, for a man with your background, wouldn't it have given you more satisfaction to have routed all the slots and then adjusted the side fence and re-routed the grooves.
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post #4 of 8 (permalink) Old 09-24-2010, 12:45 PM
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Hi Barry

Why not just use the router bit made just for that type of job (plywood bits)

4 pc 1/2" SH Dado Plywood Straight Router Bit Set - eBay (item 140457286876 end time Oct-22-10 14:43:19 PDT)

========

Quote:
Originally Posted by bandsaw barry View Post
I'm probably guilty of trying to teach my grandmother to suck eggs ...
Built a toy storage cabinet out of 16mm shelving - kind of a giant set of pigeon holes using egg crate construction.
Bought a 16mm straight cutter to machine the slots, but of course, 16mm won't fit into 16mm.
After machining the 16mm slot, 2 thicknesses of masking tape fixed to my circular router base gave a snug fit without having to readjust my offset guide fence.
Simple but effective!


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post #5 of 8 (permalink) Old 09-24-2010, 01:06 PM
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I believe the spacer is the better solution to moving the fence. I've done this on purpose myself. My TS dado can only cut up to 13/16" wide but I needed a 15/16" notch. Rather than move the fence for the additional 1/8", I elected to add an 1/8" spacer to provide the additional width. Since I had to move the fence for each notch (16 in all), this cut the number of adjustments in half. I just had to remember to make the second cut before moving the fence for the next notch.
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post #6 of 8 (permalink) Old 09-27-2010, 02:48 AM Thread Starter
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Harry, I was working on-site without the facility of a bench let alone a router table.
Bobj, here in Canberra we're restricted to standard router bits (and lucky to have any sort of a range)
Bandsaw Barry.
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post #7 of 8 (permalink) Old 09-27-2010, 04:21 AM
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I am probably the most poorly placed person to give advice on anything to do with a router at present, having yet to even sink my new machine into a piece of wood. That said, I read a huge amount (both on and offline) and came across a tip that I thought sounded useful - and might just be for this application. The only issue I can see is that it will only work when routing freehand. That said, it still sounds useful : essentially it involves creating a square router base in which one drills a central hole. One then marks one side as '0', and the others as '1', '2' and '3'. You then cut (with a table saw, or similarly accurate method) 1mm off the '1' side, 2mm from the '2' side, and 3mm from the '3' side. Attach the base to the router and make a pass with the '0' side against the fence. Rotate the router so that the '1' side sits against the fence and make a pass. The channel just got 1mm wider. Continue on, making the channel as wide as required. You could obviously make such bases with greater increments than 1mm, giving one more scope for widening the channel.

Sound handy?
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post #8 of 8 (permalink) Old 09-27-2010, 07:57 AM
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Quote:
Originally Posted by bandsaw barry View Post
Harry, I was working on-site without the facility of a bench let alone a router table.
Bobj, here in Canberra we're restricted to standard router bits (and lucky to have any sort of a range)
Bandsaw Barry.
What you did, but failed to explain the reason for, is my kind of "necessity being the mother of invention"
Regarding router bits, take a peep at this Aussie site, I've had heaps of router cutters and saw blades and have always been happy with the quality, and the prices, well look for yourself Barry.

Harry



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