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Nylon gear adhesive

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Fletcher

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Nov 7, 2019, 4:53:44 AM11/7/19
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What adhesive to repair nylon halved pencil sharpener gear?
http://img4.imagetitan.com/img.php?image=20_image5623.jpg
If it fails, what online pencil sharpener do you recommend?

Andy Burns

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Nov 7, 2019, 5:19:55 AM11/7/19
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Fletcher wrote:

> What adhesive to repair nylon halved pencil sharpener gear?
> http://img4.imagetitan.com/img.php?image=20_image5623.jpg

Maybe 3M DP8005, but it's not cheap, and the dual tube syringe is meant
to be used with a dedicated applicator

Tim Schwartz

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Nov 7, 2019, 8:56:15 AM11/7/19
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Hi,

I bought a 3D printed replacement gear for my Boston electric pencil
sharpener for around $10 on e-bay. Now there are several vendors, and a
couple of variations, so you could search e-bay for:

"Boston pencil sharpener gear" and find several choices.

Regards,
Tim

Tim Schwartz

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Nov 7, 2019, 8:57:23 AM11/7/19
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On 11/7/2019 4:53 AM, Fletcher wrote:

"\"Re...@home.com

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Nov 7, 2019, 9:14:04 AM11/7/19
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Ed Pawlowski

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Nov 7, 2019, 10:14:01 AM11/7/19
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No adhesive will work well for that type of break but cyanoacrylates are
supposed to work on nylon.


How does an online pencil sharpener work? Put the pencil into the wifi?

Fred McKenzie

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Nov 7, 2019, 12:33:02 PM11/7/19
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In article <qq0pj6$56v$1...@neodome.net>,
This does not answer your question, but may be the best approach:

<http://www.xacto.com/products/office-solutions/pencil-sharpeners/detail/
1031>

Fred

Fletcher

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Nov 7, 2019, 12:59:00 PM11/7/19
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Sometime around Thu, 7 Nov 2019 08:57:26 -0500, Tim Schwartz
<t...@bristolnj.com> wrote.....
It probably will not work but I'll try to glue it just once.
If that fails, I'll junk it for parts.

To replace the gear I first called Newell Office Company under Exacto in
Statesville NC 800-879-4868 but they no longer support the Boston Model 18
Electric Pencil Sharpener 296A so they won't sell a replacement gear.

I assumed it's nylon where it must be a really bad design given that it
breaks a lot in the same spot on the net https://youtu.be/TExVKWyZx20 so if
an expoxy or cyanacrylate doesn't work I probably should choose a more
reliable brand than this crummy Boston brand.

Like you said there are 3D replacements online I could buy.
There's even a "tinkercad" model file
https://www.thingiverse.com/thing:267626
but I don't have a 3D printer to print it
https://www.tinkercad.com/things/6nqhKOHp530

Someone suggest a better brand they like that's better than crummy Boston?



TheExperimenter

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Nov 7, 2019, 1:56:25 PM11/7/19
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Ten years ago, I had to bond a wire spool to a plastic tub. Both the
spool and tub were soft plastics, nylon and polypropylene, respectively.
I used this: https://tinyurl.com/y3z5cnyn

For three years, in temperatures from 15- 90 F, the bond held fine and
allowed me to wind and unwind wire around the spool. Then, one night,
it came apart after I had bumped the assembly against the door heading
outdoors. However, for the cost, I felt that the plastic bonder did the
job. You can find it just about anywhere, home improvement stores and
such. Good luck.

micky

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Nov 7, 2019, 4:20:52 PM11/7/19
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In alt.home.repair, on Thu, 07 Nov 2019 12:32:59 -0500, Fred McKenzie
An excellent idea. Probaby will last for 30 years.

We had one where the handle cyclinder fell off, but my mother kept the
cylinder and the rivet and I pounded the rivet down a bit and it jst
about good as new. I still have it somewhere but I use a knife to
sharpen pencils.

Ours didn't even suck in the pencil. You had to push it in. Worked just
fine.

Fletcher

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Nov 10, 2019, 9:45:50 PM11/10/19
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Sometime around Thu, 07 Nov 2019 16:20:46 -0500, micky
<NONONOa...@rushpost.com> wrote.....
Thanks to all for the advice for fixing broken plastic gears.
Broke with cyanacrylate & decided to give up on the epoxy.
Paid $30 at Staples to replace the crappy Boston with Bostich.
http://img4.imagetitan.com/img.php?image=20_image5626.jpg
Any ideas for inventive re-use of the old Boston worm gear & transformer?

Fred McKenzie

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Nov 10, 2019, 10:43:01 PM11/10/19
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In article <qqai0s$171r$1...@neodome.net>,
Fletcher <fletche...@example.com> wrote:

> Thanks to all for the advice for fixing broken plastic gears.
> Broke with cyanacrylate & decided to give up on the epoxy.

Do you know what model your Boston sharpener is? You might try E-Bay.
I see various replacement gear prices ranging from $7 to $21.

I also see someone selling a "parts only" model 17 that needs a new gear!

Fred

Fletcher

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Nov 11, 2019, 5:49:04 AM11/11/19
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Sometime around Sun, 10 Nov 2019 22:42:59 -0500, Fred McKenzie
<fm...@aol.com> wrote.....
It's a Boston Model 18 Electric Pencil Sharpener 296A/
I've never bought nor sold anything on Ebay.
I generally disassemble broken devices & keep what's re-usable.
Nothing much seems re-usable except the power cord though
(and I have a box full of those already).
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