Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread Bill Schairer
Oops, clean and lubricate the shaft AND all the other joints that are supposed to move when you turn the shaft. Just do everything. Bill S San Diego On Friday, October 14, 2022 at 11:53:05 AM UTC-7 Garth wrote: > I forget to add what Laing already mentioned, I figured the knob was >

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread Garth
I forget to add what Laing already mentioned, I figured the knob was loosening because the shaft wasn't moving freely enough. Hence, people overtighten the knob and break it in trying to compensate for the resistance in the main shaft. If lube isn't enough, a new main shaft kit would apply.

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread Bill Schairer
Sounds like you need to lubricate that shaft. It shouldn't take a ton of effort to adjust. I have one of those. Bill S San Diego On Friday, October 14, 2022 at 8:47:10 AM UTC-7 cycli...@gmail.com wrote: > Epoxy > > > On Friday, October 14, 2022 at 8:41:41 AM UTC-7 pi...@gmail.com wrote: > >>

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread David Person
Epoxy On Friday, October 14, 2022 at 8:41:41 AM UTC-7 pi...@gmail.com wrote: > I spoke too soon. Overnight, the loctite cured and now I can turn it (with > a ton of effort, but it works!). Now I can build up my wheel. > > On Fri, Oct 14, 2022 at 6:46 AM lconley wrote: > >> Have you lubricated

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread 藍俊彪
I spoke too soon. Overnight, the loctite cured and now I can turn it (with a ton of effort, but it works!). Now I can build up my wheel. On Fri, Oct 14, 2022 at 6:46 AM lconley wrote: > Have you lubricated the other items along the threaded rod to reduce the > amount of torque required to

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread rltilley
I have used JB Weld on a number of metal to non-metal interfaces and it worked really well. I can’t recall any failing. This is the standard JB Weld that has black & white materials that you mix together to get a gray material.Robert TilleySan Diego, CASent from my iPhoneOn Oct 13, 2022, at 7:52

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread lconley
Have you lubricated the other items along the threaded rod to reduce the amount of torque required to rotated the rod? Boeshield would be good for that. Lubricate the shaft (except for the knob/locknut) and the tighten the locknut real good against the knob. If that doesn't work, the just keep

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread Garth
Did you watch the video to see exactly how Park does it ? Are you sure you're not bottoming out the knob first before you tension the nut against it ? (They say leave 8 threads after the locknut is threaded on.) Follow the video, that's all I can say. If you say that doesn't work then that

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread 藍俊彪
Already tried red loctite. Doesn't work. On Fri, Oct 14, 2022 at 5:34 AM Eric Marth wrote: > I'd try something like red Loctite first. Easy to find, easy to apply. > > If that doesn't work you might try looking for a more robust replacement > thread-on knob that has a set screw built in. Find

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread Eric Marth
I'd try something like red Loctite first. Easy to find, easy to apply. If that doesn't work you might try looking for a more robust replacement thread-on knob that has a set screw built in. Find our the pitch of your metal thread and check out McMaster-Carr for "threaded hole knobs." On

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread 藍俊彪
I do have the locknut, but it doesn't help. It keeps the knob from turning clockwise once it's snug against it, but counter-clockwise (the unscrewing action) doesn't work. On Fri, Oct 14, 2022 at 1:31 AM Garth wrote: > My first question then is "how was the knob attached to begin with from >

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-14 Thread Garth
The Park TS-2 is your stand, yes ? (sorry I don't know your name as it isn't shown) The logical first question is, How was the know attached on your stand to begin with ? And to follow that, how was it attached from the factory ? According to their parts diagram the knob is held in place with

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-13 Thread Josiah Anderson
Oh, rereading I see now that you're actually trying to get the new knob to stay put. What if you used that same locknut idea, just with one nut pushing against the back of the knob? That would probably hold it on quite securely. Le jeu. 13 oct. 2022 à 21:00, Josiah Anderson a écrit : > The goal

Re: [RBW] How to bond plastic knob to metal screw?

2022-10-13 Thread Josiah Anderson
The goal is to remove that threaded rod, right? I would try to find two nuts that fit on there and lock them together, like you would on a hub axle, and just use those to turn it. Alternatively you could wrap it in something soft (bar tape?) and turn it with vise grips or something. I don't think