An easily replaceable drill press table insert. I made mine from hardboard though I'm sure MDF would have been fine too. The setup allows the insert to be rotated to eight different positions and the table swings left to right too so there are lots of options to maximize use of a single insert. I cut the pocket to be a 'just right' fit for inserts cut on my reusable jig with zero offset on an outside cut. To replace the insert, I push it up from underneath via the hole in the table.
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Tools
RoundedOctagon.svg
Drill press table needing new insert ;-)
18mm Baltic Birch for base of jig
5.4mm Hardboard for jig and blank inserts
Shaper Origin
1/4 inch spiral down cut bit
I created the Rounded Octagon shape using this rounded polygon generator: https://weareoutman.github.io/rounded-polygon Note: I removed the fill colour, set stroke to black and closed the path by adding 'z' as the last component of the 'd' attribute of the path. The drill press table I upgraded is from Lee Valley: https://www.leevalley.com/en-ca/shop/tools/power-tool-accessories/supports-and-stands/110474-drill-press-table-and-fence?item=86N8002 Scale the octagonal insert size as needed to fit your drill press table. I make mine large enough to remove the holes to lift the old insert which collected debris. I also made if small enough to replace the insert without needing to remove the fence. The sizing of the jig is based on the size of the insert so adjust as needed. I chose to use the thicker hardboard (about 5.4mm) which is readily available in my area. It's not a thick as the original insert so there's some of the old pocket left. Replacement insert jig: I created the jig to cut the new replacement inserts first as this is what I'll be reusing in the future to make the next batch of replacements. The base is baltic birch and size is based on insert size and tape field needed Hardboard pieces on top of the base form the working area From the top down, the hardboard parts are: - top anchor with field of tape coving the screws - left anchor also screwed down - the blank with double stick tape under the insert only - wedges at the bottom hold the offset and handle variance in size (I cut mine at about 20 degrees) A strip of baltic birch screwed to the front edge of the base - enough above the base so the wedges can press against it - enough below the base so that it registers against my bench Cutting the pocket into the drill press table was done after several blank inserts were cut. I positioned my insert so that it's offset from the centre of the drill. That way I get to use all 8 positions. I can also swing the drill press table about the axis of the vertical post to maximize use of the insert. I slowly crept up on a 'just right' fit for the inserts into the pocket I then crept up on the depth of the pocket so my inserts sit flush with the table top All cuts were done with 1/4 inch spiral down cut bit which did a lovely job on the hardboard and on the laminate top of the drill press table.
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