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

[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 
> 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.
>
> On Friday, October 14, 2022 at 11:47:10 AM UTC-4 cycli...@gmail.com wrote:
>
>> 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 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 
 a wrench handy to turn the locknut against the knob when wanting to rotate 
 the shaft the opposite way from the knob.

 Laing

 On Friday, October 14, 2022 at 8:54:59 AM UTC-4 pi...@gmail.com wrote:

> 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 our the 
>> pitch of your metal thread and check out McMaster-Carr for "threaded 
>> hole 
>> knobs." 
>>
>> On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com 
>> wrote:
>>
>>> 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 the factory ?" 
 According to the photos, that style of knob was used on the TS-2, 
 this is yours yes ? (Sorry I don't know your name as it was not 
 included)

 So, ever inquisitive, whenever it comes to parts, I always refer to 
 original parts documents. According the stock photos and parts pdf, 
 *there 
 should have been a locknut for the knob to begin with*.  
 https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf

 You may have a suitable nut on hand as Park likely uses common SAE 
 threading. If not you could contact Park and maybe they'll send you 
 one or 
 just go to the local hardware store. 

>>>








 On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson 
 wrote:

> 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 <
> anderso...@gmail.com> a écrit :
>
>> 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 the broken plastic knob necessarily has to be involved 
>> in this 
>> process, unless I'm missing something, which is very possible.
>>
>> Josiah
>> Missoula, MT 
>>
>> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>>
>>> I broke the plastic knob on my truing stand (see attached 
>>> photo). I have a replacement knob from Park, but am discovering 
>>> that just 
>>> threading it on doesn't work --- when I need to turn the shaft 
>>> counter-clockwise it comes off the shaft instead of turning it. 
>>> I've 
>>> already tried red and blue loctite and those don't work on 
>>> metal/plastic 
>>> interfaces. Should I try epoxy next?
>>>
>>> -- 
>>> You received this message because you are subscribed to the 

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

[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.

On Friday, October 14, 2022 at 11:47:10 AM UTC-4 cycli...@gmail.com wrote:

> 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 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 a 
>>> wrench handy to turn the locknut against the knob when wanting to rotate 
>>> the shaft the opposite way from the knob.
>>>
>>> Laing
>>>
>>> On Friday, October 14, 2022 at 8:54:59 AM UTC-4 pi...@gmail.com wrote:
>>>
 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 our the 
> pitch of your metal thread and check out McMaster-Carr for "threaded hole 
> knobs." 
>
> On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:
>
>> 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 the factory ?" 
>>> According to the photos, that style of knob was used on the TS-2, 
>>> this is yours yes ? (Sorry I don't know your name as it was not 
>>> included)
>>>
>>> So, ever inquisitive, whenever it comes to parts, I always refer to 
>>> original parts documents. According the stock photos and parts pdf, 
>>> *there 
>>> should have been a locknut for the knob to begin with*.  
>>> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>>>
>>> You may have a suitable nut on hand as Park likely uses common SAE 
>>> threading. If not you could contact Park and maybe they'll send you one 
>>> or 
>>> just go to the local hardware store. 
>>>
>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson 
>>> wrote:
>>>
 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 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 the broken plastic knob necessarily has to be involved in 
> this 
> process, unless I'm missing something, which is very possible.
>
> Josiah
> Missoula, MT 
>
> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>
>> I broke the plastic knob on my truing stand (see attached photo). 
>> I have a replacement knob from Park, but am discovering that just 
>> threading 
>> it on doesn't work --- when I need to turn the shaft 
>> counter-clockwise it 
>> comes off the shaft instead of turning it. I've already tried red 
>> and blue 
>> loctite and those don't work on metal/plastic interfaces. Should I 
>> try 
>> epoxy next?
>>
>> -- 
>> You received this message because you are subscribed to the 
>> Google Groups "RBW Owners Bunch" group.
>> To unsubscribe from this group and stop receiving emails from it, 
>> send an email to rbw-owners-bun...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
>>  

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

[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:
>
>> 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 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 a 
>>> wrench handy to turn the locknut against the knob when wanting to rotate 
>>> the shaft the opposite way from the knob.
>>>
>>> Laing
>>>
>>> On Friday, October 14, 2022 at 8:54:59 AM UTC-4 pi...@gmail.com wrote:
>>>
 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 our the 
> pitch of your metal thread and check out McMaster-Carr for "threaded hole 
> knobs." 
>
> On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:
>
>> 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 the factory ?" 
>>> According to the photos, that style of knob was used on the TS-2, 
>>> this is yours yes ? (Sorry I don't know your name as it was not 
>>> included)
>>>
>>> So, ever inquisitive, whenever it comes to parts, I always refer to 
>>> original parts documents. According the stock photos and parts pdf, 
>>> *there 
>>> should have been a locknut for the knob to begin with*.  
>>> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>>>
>>> You may have a suitable nut on hand as Park likely uses common SAE 
>>> threading. If not you could contact Park and maybe they'll send you one 
>>> or 
>>> just go to the local hardware store. 
>>>
>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson 
>>> wrote:
>>>
 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 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 the broken plastic knob necessarily has to be involved in 
> this 
> process, unless I'm missing something, which is very possible.
>
> Josiah
> Missoula, MT 
>
> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>
>> I broke the plastic knob on my truing stand (see attached photo). 
>> I have a replacement knob from Park, but am discovering that just 
>> threading 
>> it on doesn't work --- when I need to turn the shaft 
>> counter-clockwise it 
>> comes off the shaft instead of turning it. I've already tried red 
>> and blue 
>> loctite and those don't work on metal/plastic interfaces. Should I 
>> try 
>> epoxy next?
>>
>> -- 
>> You received this message because you are subscribed to the 
>> Google Groups "RBW Owners Bunch" group.
>> To unsubscribe from this group and stop receiving emails from it, 
>> send an email to rbw-owners-bun...@googlegroups.com.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
>>  
>> 
>> .

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

[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 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 a 
>> wrench handy to turn the locknut against the knob when wanting to rotate 
>> the shaft the opposite way from the knob.
>>
>> Laing
>>
>> On Friday, October 14, 2022 at 8:54:59 AM UTC-4 pi...@gmail.com wrote:
>>
>>> 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 our the 
 pitch of your metal thread and check out McMaster-Carr for "threaded hole 
 knobs." 

 On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:

> 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 the factory ?" 
>> According to the photos, that style of knob was used on the TS-2, 
>> this is yours yes ? (Sorry I don't know your name as it was not included)
>>
>> So, ever inquisitive, whenever it comes to parts, I always refer to 
>> original parts documents. According the stock photos and parts pdf, 
>> *there 
>> should have been a locknut for the knob to begin with*.  
>> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>>
>> You may have a suitable nut on hand as Park likely uses common SAE 
>> threading. If not you could contact Park and maybe they'll send you one 
>> or 
>> just go to the local hardware store. 
>>
>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson 
>> wrote:
>>
>>> 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 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 the broken plastic knob necessarily has to be involved in 
 this 
 process, unless I'm missing something, which is very possible.

 Josiah
 Missoula, MT 

 Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :

> I broke the plastic knob on my truing stand (see attached photo). 
> I have a replacement knob from Park, but am discovering that just 
> threading 
> it on doesn't work --- when I need to turn the shaft 
> counter-clockwise it 
> comes off the shaft instead of turning it. I've already tried red and 
> blue 
> loctite and those don't work on metal/plastic interfaces. Should I 
> try 
> epoxy next?
>
> -- 
> You received this message because you are subscribed to the Google 
> Groups "RBW Owners Bunch" group.
> To unsubscribe from this group and stop receiving emails from it, 
> send an email to rbw-owners-bun...@googlegroups.com.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
>  
> 
> .
>
 -- 
>>
> You received this message because you are subscribed to a topic in the 
>> Google Groups "RBW Owners Bunch" group.
>> To unsubscribe from this topic, visit 
>> https://groups.google.com/d/topic/rbw-owners-bunch/QITNLjHYiBM/unsubscribe
>> .
>> To unsubscribe from this group and all its topics, 

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

[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 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 a
> wrench handy to turn the locknut against the knob when wanting to rotate
> the shaft the opposite way from the knob.
>
> Laing
>
> On Friday, October 14, 2022 at 8:54:59 AM UTC-4 pi...@gmail.com wrote:
>
>> 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 our the pitch of your
>>> metal thread and check out McMaster-Carr for "threaded hole knobs."
>>>
>>> On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:
>>>
 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 the factory ?"
> According to the photos, that style of knob was used on the TS-2, this
> is yours yes ? (Sorry I don't know your name as it was not included)
>
> So, ever inquisitive, whenever it comes to parts, I always refer to
> original parts documents. According the stock photos and parts pdf, *there
> should have been a locknut for the knob to begin with*.
> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>
> You may have a suitable nut on hand as Park likely uses common SAE
> threading. If not you could contact Park and maybe they'll send you one or
> just go to the local hardware store.
>

>
>
>
>
>
>
>
>
> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson
> wrote:
>
>> 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 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 the broken plastic knob necessarily has to be involved in 
>>> this
>>> process, unless I'm missing something, which is very possible.
>>>
>>> Josiah
>>> Missoula, MT
>>>
>>> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>>>
 I broke the plastic knob on my truing stand (see attached photo). I
 have a replacement knob from Park, but am discovering that just 
 threading
 it on doesn't work --- when I need to turn the shaft counter-clockwise 
 it
 comes off the shaft instead of turning it. I've already tried red and 
 blue
 loctite and those don't work on metal/plastic interfaces. Should I try
 epoxy next?

 --
 You received this message because you are subscribed to the Google
 Groups "RBW Owners Bunch" group.
 To unsubscribe from this group and stop receiving emails from it,
 send an email to rbw-owners-bun...@googlegroups.com.
 To view this discussion on the web visit
 https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
 
 .

>>> --
>
 You received this message because you are subscribed to a topic in the
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> https://groups.google.com/d/topic/rbw-owners-bunch/QITNLjHYiBM/unsubscribe
> .
> To unsubscribe from this group and all its topics, send an email to
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> To view this discussion on the web visit
> https://groups.google.com/d/msgid/rbw-owners-bunch/4bd94fb2-8831-4aee-b8e9-3e7a332e82f2n%40googlegroups.com
> 

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

[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 PM, Piaw Na  wrote:I broke the plastic knob on my truing stand (see attached photo). I have a replacement knob from Park, but am discovering that just threading it on doesn't work --- when I need to turn the shaft counter-clockwise it comes off the shaft instead of turning it. I've already tried red and blue loctite and those don't work on metal/plastic interfaces. Should I try epoxy next?



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

[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 a 
wrench handy to turn the locknut against the knob when wanting to rotate 
the shaft the opposite way from the knob.

Laing

On Friday, October 14, 2022 at 8:54:59 AM UTC-4 pi...@gmail.com wrote:

> 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 our the pitch of your 
>> metal thread and check out McMaster-Carr for "threaded hole knobs." 
>>
>> On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:
>>
>>> 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 
 the factory ?" 
 According to the photos, that style of knob was used on the TS-2, this 
 is yours yes ? (Sorry I don't know your name as it was not included)

 So, ever inquisitive, whenever it comes to parts, I always refer to 
 original parts documents. According the stock photos and parts pdf, *there 
 should have been a locknut for the knob to begin with*.  
 https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf

 You may have a suitable nut on hand as Park likely uses common SAE 
 threading. If not you could contact Park and maybe they'll send you one or 
 just go to the local hardware store. 

>>>








 On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson 
 wrote:

> 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 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 the broken plastic knob necessarily has to be involved in 
>> this 
>> process, unless I'm missing something, which is very possible.
>>
>> Josiah
>> Missoula, MT 
>>
>> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>>
>>> I broke the plastic knob on my truing stand (see attached photo). I 
>>> have a replacement knob from Park, but am discovering that just 
>>> threading 
>>> it on doesn't work --- when I need to turn the shaft counter-clockwise 
>>> it 
>>> comes off the shaft instead of turning it. I've already tried red and 
>>> blue 
>>> loctite and those don't work on metal/plastic interfaces. Should I try 
>>> epoxy next?
>>>
>>> -- 
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>>>  
>>> 
>>> .
>>>
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Re: [RBW] How to bond plastic knob to metal screw?

[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 doesn't make sense as that's the way it comes from the factory in the 
first place. 

The obvious question then is why isn't or wasn't yours held in place with 
the locknut before it broke ? 
How was the knob held on yours ? 
How did it break anyways ?  
Have you ever called Park to ask for help ? I'm sure you wouldn't be the 
first to run into a seemingly insurmountable issue with the knob. 


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

[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 our the pitch of your
> metal thread and check out McMaster-Carr for "threaded hole knobs."
>
> On Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:
>
>> 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
>>> the factory ?"
>>> According to the photos, that style of knob was used on the TS-2, this
>>> is yours yes ? (Sorry I don't know your name as it was not included)
>>>
>>> So, ever inquisitive, whenever it comes to parts, I always refer to
>>> original parts documents. According the stock photos and parts pdf, *there
>>> should have been a locknut for the knob to begin with*.
>>> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>>>
>>> You may have a suitable nut on hand as Park likely uses common SAE
>>> threading. If not you could contact Park and maybe they'll send you one or
>>> just go to the local hardware store.
>>>
>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson wrote:
>>>
 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 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 the broken plastic knob necessarily has to be involved in this
> process, unless I'm missing something, which is very possible.
>
> Josiah
> Missoula, MT
>
> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>
>> I broke the plastic knob on my truing stand (see attached photo). I
>> have a replacement knob from Park, but am discovering that just threading
>> it on doesn't work --- when I need to turn the shaft counter-clockwise it
>> comes off the shaft instead of turning it. I've already tried red and 
>> blue
>> loctite and those don't work on metal/plastic interfaces. Should I try
>> epoxy next?
>>
>> --
>> You received this message because you are subscribed to the Google
>> Groups "RBW Owners Bunch" group.
>> To unsubscribe from this group and stop receiving emails from it,
>> send an email to rbw-owners-bun...@googlegroups.com.
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>> https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
>> 
>> .
>>
> --
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>>> 
>>> .
>>>
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Re: [RBW] How to bond plastic knob to metal screw?

[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 Friday, October 14, 2022 at 8:24:49 AM UTC-4 pi...@gmail.com wrote:

> 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 
>> the factory ?" 
>> According to the photos, that style of knob was used on the TS-2, this is 
>> yours yes ? (Sorry I don't know your name as it was not included)
>>
>> So, ever inquisitive, whenever it comes to parts, I always refer to 
>> original parts documents. According the stock photos and parts pdf, *there 
>> should have been a locknut for the knob to begin with*.  
>> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>>
>> You may have a suitable nut on hand as Park likely uses common SAE 
>> threading. If not you could contact Park and maybe they'll send you one or 
>> just go to the local hardware store. 
>>
>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson wrote:
>>
>>> 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 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 the broken plastic knob necessarily has to be involved in this 
 process, unless I'm missing something, which is very possible.

 Josiah
 Missoula, MT 

 Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :

> I broke the plastic knob on my truing stand (see attached photo). I 
> have a replacement knob from Park, but am discovering that just threading 
> it on doesn't work --- when I need to turn the shaft counter-clockwise it 
> comes off the shaft instead of turning it. I've already tried red and 
> blue 
> loctite and those don't work on metal/plastic interfaces. Should I try 
> epoxy next?
>
> -- 
> You received this message because you are subscribed to the Google 
> Groups "RBW Owners Bunch" group.
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> an email to rbw-owners-bun...@googlegroups.com.
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> https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
>  
> 
> .
>
 -- 
>>
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>> Google Groups "RBW Owners Bunch" group.
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>> https://groups.google.com/d/topic/rbw-owners-bunch/QITNLjHYiBM/unsubscribe
>> .
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>> https://groups.google.com/d/msgid/rbw-owners-bunch/4bd94fb2-8831-4aee-b8e9-3e7a332e82f2n%40googlegroups.com
>>  
>> 
>> .
>>
>

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

[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
> the factory ?"
> According to the photos, that style of knob was used on the TS-2, this is
> yours yes ? (Sorry I don't know your name as it was not included)
>
> So, ever inquisitive, whenever it comes to parts, I always refer to
> original parts documents. According the stock photos and parts pdf, *there
> should have been a locknut for the knob to begin with*.
> https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
>
> You may have a suitable nut on hand as Park likely uses common SAE
> threading. If not you could contact Park and maybe they'll send you one or
> just go to the local hardware store.
>
>
>
>
>
>
>
>
>
> On Thursday, October 13, 2022 at 11:02:48 PM UTC-4 Josiah Anderson wrote:
>
>> 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 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 the broken plastic knob necessarily has to be involved in this
>>> process, unless I'm missing something, which is very possible.
>>>
>>> Josiah
>>> Missoula, MT
>>>
>>> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>>>
 I broke the plastic knob on my truing stand (see attached photo). I
 have a replacement knob from Park, but am discovering that just threading
 it on doesn't work --- when I need to turn the shaft counter-clockwise it
 comes off the shaft instead of turning it. I've already tried red and blue
 loctite and those don't work on metal/plastic interfaces. Should I try
 epoxy next?

 --
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 .

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

[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 a locknut 
to begin with. The pdf parts diagram shows it, and the video shows the guy 
actually installing the knob on the shaft with the locknut. 

I don't know the hi-story of your stand, but regardless, it is supposed to 
have a locknut. Either you have one or you don't. If not you have a 
suitable one laying around, or go to the local hardware store. 


https://www.parktool.com/assets/doc/product/TS-2_instructions.pdf
https://www.parktool.com/en-us/blog/repair-help/ts-rk-installation

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

[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 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 the broken plastic knob necessarily has to be involved in this
> process, unless I'm missing something, which is very possible.
>
> Josiah
> Missoula, MT
>
> Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :
>
>> I broke the plastic knob on my truing stand (see attached photo). I have
>> a replacement knob from Park, but am discovering that just threading it on
>> doesn't work --- when I need to turn the shaft counter-clockwise it comes
>> off the shaft instead of turning it. I've already tried red and blue
>> loctite and those don't work on metal/plastic interfaces. Should I try
>> epoxy next?
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "RBW Owners Bunch" group.
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>> email to rbw-owners-bunch+unsubscr...@googlegroups.com.
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>> https://groups.google.com/d/msgid/rbw-owners-bunch/3a406f58-259b-4f22-a31b-8b3f01b724b5n%40googlegroups.com
>> 
>> .
>>
>

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

[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 the broken plastic knob necessarily has to be involved in this
process, unless I'm missing something, which is very possible.

Josiah
Missoula, MT

Le jeu. 13 oct. 2022 à 20:53, Piaw Na  a écrit :

> I broke the plastic knob on my truing stand (see attached photo). I have a
> replacement knob from Park, but am discovering that just threading it on
> doesn't work --- when I need to turn the shaft counter-clockwise it comes
> off the shaft instead of turning it. I've already tried red and blue
> loctite and those don't work on metal/plastic interfaces. Should I try
> epoxy next?
>
> --
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> 
> .
>

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