On 25/07/17 09:29, RJH wrote:
On 24/07/2017 20:24, newshound wrote:
On 7/24/2017 8:22 AM, RJH wrote:
On 23/07/2017 20:53, jkn wrote:
Hello all
This is an enquiry about how to use a router to cut a slot in
the end of a sheet of wood.
Below is an ASCII-art side view of the sheet. The wood is around
18mm thick.

The slot needs to be say 3mm across, and perhaps 15mm deep.


| | slot approx 3mm from edge

| | 3mm slot, 15mm or so deep
/ / / /
/ / / /
/ / / /
/ / / /
|-| |------|
| | | |
| | | |
| |_| |
| |
| |
|SIDE VIEW |

| ~18mm | thickness of wood

I have a Router (1/2" chuck) available to me. I originally presumed
that the
approach would be to get a suitable 'deep pocket' router bit and cut
the
slot in several passes. However I cannot find such a router bit and am
wondering if there are any other options.

I am expecting to have it pointed out that the 3mm strip of wood
left on the LH side of the slot will be very weak. I do realise
this... a last resort is to
make a rebate rather than a slot, but this leaves me with a different
finishing problem.

Thanks for any pointers and suggestions

jon N


IIUC, clamp the wood in a workmate and run a circular saw set to
15mm. I did this to build a frame to hold the tongue of T&G cladding.

I think you might be lucky to have the thin strip survive. Given my
poor woodworking skills I think I would look at capping a stepped rebate.

Actually yes - I didn't take into account the 3mm from edge part. But if
it's a reasonably sympathetic blade, well worth a try. I clamped a piece
of wood to the bench as a guide rail and I was very surprised how good
it looked - and that was a 5mm strip at most.

Actually no. A good router tool will leasve a 10 thou wafer standing if
you set it up right.



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