Shopsmith Forums

dusty wrote:

ibskot wrote:I didn't do it. Why? Time to go get a proper bolt and time to check. I do things when I can and when I think of it. What is the probability of the threaded post being wrong? Much lower then the nut. A non forum SS friend showed me 3 different ones...at least a pic. I am confident this will fix and especially since the washer included wouldn't fit the slot at all.

Thanks a lot for the assistance folks.

Good Luck

I would have bet on the exposed threads on the post unless you have a t-nut that was not threaded at all.

I am guessing incomplete thread - t-nut more likely than the post.

JPG wrote:

dusty wrote:

ibskot wrote:I didn't do it. Why? Time to go get a proper bolt and time to check. I do things when I can and when I think of it. What is the probability of the threaded post being wrong? Much lower then the nut. A non forum SS friend showed me 3 different ones...at least a pic. I am confident this will fix and especially since the washer included wouldn't fit the slot at all.

Thanks a lot for the assistance folks.

Good Luck

I would have bet on the exposed threads on the post unless you have a t-nut that was not threaded at all.

I am guessing incomplete thread - t-nut more likely than the post.

My guess (emphasis on guess) is that we will never know unless ibskot will check the threads. Of course if the new T nut from the MS works or doesn't then we may know the problem.

I have a very small statistical sample of 10 t-nuts. Two of them have no threads in the larger (center) hole. I've had these for a long time so they may not be representative of todays t-nut from Shopsmith. Of the other eight, two were difficult to thread onto a bolt. The remaining six spun onto the spun with minimal resistance.

Conclude from that what you will.

BTW, The two that were difficult to thread on are no longer difficult to thread on. I ran a tap through the threaded holes. I did it by hand (no handle on the tap) so the threads were not all that bad.

A good visual inspection of the threads should provide a pretty good indication of whether or not the threads on the post are bad. I guess I shoul;d assume that that was done by ibskot.

I will happily post results of the new nut upon arrival.

dusty wrote:I have a very small statistical sample of 10 t-nuts. Two of them have no threads in the larger (center) hole. I've had these for a long time so they may not be representative of todays t-nut from Shopsmith. Of the other eight, two were difficult to thread onto a bolt. The remaining six spun onto the spun with minimal resistance.

Conclude from that what you will.

BTW, The two that were difficult to thread on are no longer difficult to thread on. I ran a tap through the threaded holes. I did it by hand (no handle on the tap) so the threads were not all that bad.

A good visual inspection of the threads should provide a pretty good indication of whether or not the threads on the post are bad. I guess I shoul;d assume that that was done by ibskot.

That is fair. I have no idea. I have many SS accessories that use the T nut and came with them with no problem. I have bought T nuts from the MS and they all work so I have no idea why someone got "bad threads".

Of course I visually inspected the post. Am I the only one that thinks that if you pay for an item, it should arrive ready to perform the function for which it was sold and purchased? In other words, if I have to tap the nut then it isn't functional the way it is. If that was the case, I have a fair amount of aluminum bar stock I could have made a box full.

Thanks

ibskot wrote:Of course I visually inspected the post. Am I the only one that thinks that if you pay for an item, it should arrive ready to perform the function for which it was sold and purchased? In other words, if I have to tap the nut then it isn't functional the way it is. If that was the case, I have a fair amount of aluminum bar stock I could have made a box full.

Thanks

OKAY. I hope that the package from Shopsmith solves your problem.

dusty wrote:I have a very small statistical sample of 10 t-nuts. Two of them have no threads in the larger (center) hole. I've had these for a long time so they may not be representative of todays t-nut from Shopsmith. Of the other eight, two were difficult to thread onto a bolt. The remaining six spun onto the spun with minimal resistance.

Conclude from that what you will.

BTW, The two that were difficult to thread on are no longer difficult to thread on. I ran a tap through the threaded holes. I did it by hand (no handle on the tap) so the threads were not all that bad.

A good visual inspection of the threads should provide a pretty good indication of whether or not the threads on the post are bad. I guess I shoul;d assume that that was done by ibskot.

Dusty, I can attest that Shopsmith used partially-machined T-nuts for the sliding table of the old stand-alone overarm pin routers. The rusty basket-case OPR that I stripped for parts had four T-nuts amongst the spoils. The small holes were tapped 1/4-20, but the large holes were untapped.

Your post motivated me to check the ones on my working OPR also. Lo and behold, not only is the large hole untapped on all four T-nuts, one of the small holes was never even drilled on them.

I have to believe that this was intentional on Shopsmith's part. Since they knew the exact function the T-nuts would be used for, why spend money to machine unnecessary features?

I keep looking for that nirvana where all is always 'perfect', but do not expect to ever find it.

Hmmmmm Dennis may have uncovered the reason for the problem.


Imagine they all look alike from a distance(> 1 foot).

Well if you get part 514491 it has two 1/4-20 threaded holes, the other hole is there but threading or not threaded it isn't listed, as seen here:

http://www.shopsmith.com/ownersite/cata ... ngnuts.htm
However if you go here:

http://www.shopsmith.com/ownersite/cata ... turesC.htm

The same part is listed as having all the holes threaded.
So I have a feeling it could be pretty hard to tell which one you get.......

Ed