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post #1 of 6 (permalink) Old 05-20-2012, 04:53 PM Thread Starter
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Default routing a slope

Hi, my first post and I'm no router expert, so please excuse ignorance. I have to rebuild the lazarette on my boat, as its got a bit of wet rot. This involves remaking the timber frame which forms the top opening locker support. So here's the tricky bit - the frame includes 2 sections of mahogany which have a sloping channel to allow water to run away. In millimetres the section is 55 high, 38 across and 430 in length. and the drain is a slope that runs the length of the 430. How will I set up the router to cut that slope? Its basically what Americans call a dado cut (I think). The only way I can imagine is to make some sort of wedge shape out of a piece of scrap so the router runs up it as it cuts, gradually reducing the cut. But of course that's tricky, as I'll need to cut though the wedge. Oh I bet there's an expert on here who's done something similar.
thanks
John in the UK
by the way, before someone says post a drawing, I'm going to try to do so tomorrow.
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post #2 of 6 (permalink) Old 05-20-2012, 06:02 PM
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Quote:
Originally Posted by Fraise View Post
Hi, my first post and I'm no router expert, so please excuse ignorance. I have to rebuild the lazarette on my boat, as its got a bit of wet rot. This involves remaking the timber frame which forms the top opening locker support. So here's the tricky bit - the frame includes 2 sections of mahogany which have a sloping channel to allow water to run away. In millimetres the section is 55 high, 38 across and 430 in length. and the drain is a slope that runs the length of the 430. How will I set up the router to cut that slope? Its basically what Americans call a dado cut (I think). The only way I can imagine is to make some sort of wedge shape out of a piece of scrap so the router runs up it as it cuts, gradually reducing the cut. But of course that's tricky, as I'll need to cut though the wedge. Oh I bet there's an expert on here who's done something similar.
thanks
John in the UK
by the way, before someone says post a drawing, I'm going to try to do so tomorrow.
Hi John - Welcome to the forum
Sounds like a job for router skiis. Do a search here, several threads on them. Short of making a set of those, just make a frame for your router to run level on and attach the work piece below it with a couple of shims to raise the workpiece slightly on one end.

John Schaben

The problem with experience is I usually get it immediately after I need it.
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post #3 of 6 (permalink) Old 05-22-2012, 06:17 AM Thread Starter
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Thanks John,
Well, your post made me think 'I don't have skis and though I'm sure he's right its a 'first catch your yak' approach for an itsy bitsy bit of work.' Then I realised I could mount the blank in the jaws of a folding workbench at any angle I want and use my router's fence along the outer side of the workbench jaw. Hey presto - apparently I do have skis; the workbench jaws. Thanks for getting me thinking in the right direction.

I can see that the skis will let me use the router for planing. Hm. Perhaps I will make skis.
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post #4 of 6 (permalink) Old 05-22-2012, 08:56 AM
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John, here is another way to cut your angles, this can easily be built at any angle required.
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post #5 of 6 (permalink) Old 05-22-2012, 10:06 AM
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Hi

Here's just one more way.

http://www.routerforums.com/table-mo...le-update.html

http://www.mlcswoodworking.com/shops...ter_table.html

==




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post #6 of 6 (permalink) Old 05-30-2012, 04:32 PM Thread Starter
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Thanks for your replies gents. I'm a slow correspondent because I was away from home on a boat and frankly writing to the forum on a smart phone is hard work!
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