loose screw issue

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RSG
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Re: loose screw issue

Post by RSG »

Thanks for the illustration
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RSG
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Re: loose screw issue

Post by RSG »

pete wrote: Thu Apr 30, 2020 7:57 pm Edit https://www.mscdirect.com/FlyerView?pag ... s/big-book 18-8 stainless at least with just a quick search of the MSC catalog.
Thanks Pete, looks like that would work if I had more room but I can't get inside once the thumb screw is in place.

I'm still thinking that nylon insert is the best idea so far. From my tests it appears to be holding well. Time will tell.
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whateg0
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Re: loose screw issue

Post by whateg0 »

Dang! I thought I was bad about coming up with complex solutions to simple problems! LOL

Dave
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warmstrong1955
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Re: loose screw issue

Post by warmstrong1955 »

whateg0 wrote: Fri May 01, 2020 1:40 pm Dang! I thought I was bad about coming up with complex solutions to simple problems! LOL

Dave
Not a rube Goldberg fan?

:)
Today's solutions are tomorrow's problems.
RSG
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Re: loose screw issue

Post by RSG »

LOL@ Bill & Dave!
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whateg0
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Re: loose screw issue

Post by whateg0 »

This thread reminds me so much of conversations with my son.

Me: I need to make this part and it's going to be a pain to hold it.
Son: Why don't you just clamp it here?
Me: Because when I get to that operation, that surface will be gone.
Son: You could machine a fixture to hold it.
Me: It's a single item and it was supposed to be a quick fix and move on.
Son: If you redesign the whole thing with some surfaces that could be used to hold it, you wouldn't need a fixture.
Me: It has to fit in an already existing space so redesign isn't possible.
Son: What if you modify the existing space?
...ad nauseam

LOL

The original part reminds me so much of the things I make, too. I seem to put so many constraints on my projects. Must be easy to make, fast to produce, last forever, not cost much, be worth way more, and most important, it has to look cool/gadgety!

Dave
John Hasler
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Re: loose screw issue

Post by John Hasler »

>This thread reminds me so much of conversations with my son.

It reminds me of a very common type of "minor" engineering project:

"Fix this but don't change anything."
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warmstrong1955
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Re: loose screw issue

Post by warmstrong1955 »

From ‘Engineers Explained’:
“Engineers believe that if it ain't broke, it doesn't have enough features yet.“

:)
Today's solutions are tomorrow's problems.
RSG
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Re: loose screw issue

Post by RSG »

:lol: :lol: :lol: 8)
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Patio
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Re: loose screw issue

Post by Patio »

BadDog wrote: Tue Apr 28, 2020 9:17 pm Awfully small and beyond my skills, but it just popped into my head... how about a screw in a screw?

Like a lock nut, but in reverse. Could maybe work if the hole is blind and preload is set by screw shoulder. Tighten outer to set preload, tighten inner to lock in place. Or along the same lines, like a split nut used to minimize backlash, but a screw, and remove all clearance, thus "jamb" the screw.

Again, I make no claims to practicality, just something that popped into my head while browsing.
RSG wrote: Wed Apr 29, 2020 7:32 am
mcostello wrote: Tue Apr 28, 2020 8:45 pm You also could put an extra screw in a hollow handle or other spot.
Sorry I can't quite imagine what you are saying, can you elaborate?
This is not a bad idea!
I have a "Cutter Master" cutter grinder that I have been giving some needed attention. It has micrometer stops for the table.
Here are a couple of pictures of it, disassembled and partially assembled.

From left to right.....Grub screw, Dial, Wave washers, Threaded shaft, and Center w/ key slot.
Top...Collar and Base.
20200504_212338.jpg
20200504_212734.jpg

The Grub Screw is used to attach the Dial onto the end of the Threaded Shaft creating a solid assembly. The Wave washers are for setting the amount of tension, required to advance the Center. They push up against the end of the Collar. You would not need the Wave washers, as you are using the friction from Thumb screw to Shaft to set the tension. To make is tool free and pretty, one would only need to make a two part Thumb Screw. Tighten the fist part for tension and the second part to lock it. One could get tricky and make the two parts of the Thumb screw. captured to each other. making them harder to lose in a steam.

It only adds one part to the whole assembly.

This will not help you, using up your existing inventory, but hey! :)
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RSG
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Re: loose screw issue

Post by RSG »

Thanks Patio!

I like that idea a lot....I could possible make some mods to incorporate that. I have been thinking that in order to move forward I may just have to abandon my inventory and start fresh, this could be an idea worth investigating.
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Patio
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Re: loose screw issue

Post by Patio »

Baddogs idea, not mine. :)
Live for the moment!
Prepare for tomorrow!
Forgive the past!
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