How to cut slot in wood (awkward position)

[perky416]

Hi guys.
I have a wooden border fixed to the ground that cant be moved or disassembled. The cross sectional view makes it look like an L shape (please see image attached).

I need to cut a slot at the bottom of one side of the wood right on the L. I cant get at it with my router as it is quite high (bits wont be long enough).

I have 24m of wood to cut this slot in with internal corners.

What would be the cleanest was to cut the slot? It needs to be around 1cm x 1cm.

Thanks

 

[Tigercubrider]

I was thinking a door trimming saw before I saw the internal corners.
I suppose a special router bit isn't possible? Like a milling bit?

 

[Tigercubrider]

https://www.amazon.co.uk/Mesee-Exte.../B08NDCL784/ref=psdc_1939248031_t2_B08ND927YW

?

 

[Deleted member 174758]

I've got to ask why the groove wasn't cut before instslling the timber - which woukd have been far easier.

Trying to cut a 10 x 10mm slot in a single pass is the sort if job you can do with a 1/2in router and a top bearing slotting bit, like an intumescent bearing bit:

The problem is that the greatest depth of cut you can get on this type of cutter "E" (with an accessory guide bearing) is 7.5mm, although the height if the cut "B" can be 10mm. With an 82mm long shank that means your slot could be 50 to 55mm down from the top.

You might be able to use a router cutter extender to get you 100mm down off the top, but these extenders are really designed for use with the router fixed in a table and are generally regarded as too hazardous to use on a hand held router. In other words it is a dangerous combination

About the only thing I can think of would be an antique 3/8in shoulder plane, with the corners being dealt with by hand chisels. A multitool and strip of 10mm ply (as a guide to run the blade against) could replace the shoulder plane, but wouldn't give such neat results. Either way, very labourious

 

[JohnD]

what is this groove for?

 

[Tigercubrider]

I guess adding wood with a gap is a non starter?

 

[opps]

Just thinking aloud...

What about a biscuit joiner such as the old DS140 (which doubles up as a mini plunge saw) or a plunge saw with a flat face such as the old Festool 55mm saw? Both have flat faces but you would need to run a bit of timber along the floor to set the required height,and run the tool more than once. Far from ideal, so feel free to ignore me.

 

[Notch7]

Just thinking aloud...

What about a biscuit joiner such as the old DS140 (which doubles up as a mini plunge saw) or a plunge saw with a flat face such as the old Festool 55mm saw? Both have flat faces but you would need to run a bit of timber along the floor to set the required height,and run the tool more than once. Far from ideal, so feel free to ignore me.

biscuit jointer was my thoughts too.

a budget £50 would do it.

 

[Nozzle]

https://www.amazon.co.uk/Mesee-Exte.../B08NDCL784/ref=psdc_1939248031_t2_B08ND927YW
Unsurprising comments in the reviews that it breaks on first use
?