Biscuit Jointer question

[jlevin01]

I have a Shopsmith Biscuit Jointer while using it, the screws that hold the rod that determines the size of the biscuit slips. What can I do to keep the set screw in place but not permanently?

[berry]

I don't have a SS biscuit joiner but I'd suggest making your way to the nearest automotive store (NAPA, Carquest etc.) and purchase some Locktite. They make a range of products that will easily 'glue' a screw/nut in place yet the seal can be broken with hand tools. I use Locktite 222 (for fastners under 1/4") to prevent fastners from coming lose. (If I could only find something to keep the marbles from rattling around between my ears.)

I'm sure SS biscuit owners will be responding soon.

[dusty]

Be careful!!!

I agree that Loctite 222 is a viable solution BUT make certain of the type of Loctite you get; some types are is near "permanent".

[Nick]

Dusty is right, John. If you're going to use Locktight, get the stuff in the red tube. Avoid the blue tube at all costs. I'd probably avoid the red tube, too, but that's just my opinion.

I can suggest three other solutions, all taught to me by a talented machinist. When a machine screw is too loose in its threads, remove it from its socket and (1) wind a heavy-duty cotton thread (like quilting thread) around the screw -- a single strand in the valleys between the peaks. If necessary hold it in place with a little beeswax while you replace the screw in its socket. Or (2) wrap the screw will the Teflon tape that plumbers use to prevent threaded pipe joints from leaking. Or (3) place a few strands of lead wool (another plumbing material) in the socket so they lay across the threads and replace the screw. I've tried them all; they all work; I'm partial to the Teflon tape for no other reason than the thread takes time and the lead wool is hard to find.

I've also "mashed" a few threads with a punch to tighten a screw in its socket on occassion, but I wouldn't suggest that technique on this occasion. The steel screw is threaded into an aluminum casting. Because the steel is harder than the aluminum, the mashed threads will simply cut the aluminum and strip the threads from inside the socket.

With all good wishes,