Bob sent me a video of his motorized box joint jig.|
Bob was running into shoulder pain from pushing the jig across is saw thousands of time
producing bee boxes, so he made a jig to do this for him. The idea is more to relieve one
operation than to automate everything. Turning off the switch after the stroke is automated
though (watch where he switches it on).
Bob writes about the jig:
I thought you might want to see what I am doing with the great finger
joint jig you designed and John made for me.
( I wish he would make
them still) This video is not edited or complete but you get the idea.
I only use the jig to make boxes for bee hives, two sizes: 6 5/8" wide
boards and 9 5/8". So I have a 7/8" dado on the table saw. I attached two
bar clamps to always be in place and added a spring loaded squeeze board
to keep the boards flush against the side. We make thousands of these
boards and my shoulders and back were killing me last year after a few
hours of pushing the jig back and forth. So recently I rigged up the
wooden gears and simple switch to the variable speed drill. I had a
speed control switch next to the toggle switch (on hand) but it was
rated one amp under the drill and failed after two days use. I later
bought a bigger amp rated controller but in the mean time put a threaded
bolt against the drill switch and it keeps on ticking. So haven't
installed the new speed switch yet. I expected the toggle switch to
fail too and will need to get a more durable switch, but so far it has
cycled on and off over 10K times without fail.
On the 6 5/8" boards I can cut the fingers on each set of 6 boards in
about 2 minutes or considering down time 150 boards per hr. Much quicker
than before and sooo much less pain.
I want to thank you for designing the jig. Without it I have no idea
what I would have done to make these cuts. A hauncher used by the big
boys would cost more that all the machinery in my entire shop. And I
really have my doubts the hauncher would be much faster. You still have
to load it and turn the boards. And all the other table saw jigs were
By the way my company is OzarkCedarHives.com
Thanks and God bless,