Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 71 users online :: 4 registered, 0 hidden and 67 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

jb weld

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
Sponsored 
  • Author
    Message

jb weld

Unread postAuthor: homedepotpro » Sat Jun 30, 2007 1:21 am

how strong is it. I want to use it the mount a sprocket of a drive spindle. the the engine is ~30cc. do you think it will hold. the sprocket it s pretty tight fight but the torque from the motor made it slip, do you think jb weld will stop it from slipping
  • 0

User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Unread postAuthor: MrCrowley » Sat Jun 30, 2007 1:25 am

Tensile strength: 3960 psi
Adhesive strength: 1800 psi
Flexural strength: 7320 psi
Compressive strength: 10733 psi
Shore D hardness: 85 (1 week)
Shrinkage: 0.0%

I repair leaks on my guns with it, I've managed to get some leaks to seal up to 130psi with it, as long as you mix it well and apply it correctly it should be fine. Though it does have a habbit of cracking if hit hard or dropped i've noticed :roll:
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: homedepotpro » Sat Jun 30, 2007 1:29 am

im not very familiar with it. i don't know if youve every built something like this before but do you thing it will work for this application. btw what it flexural strength
  • 0

User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Unread postAuthor: spudbud101 » Sat Jun 30, 2007 1:48 am

I don't think it will hold. This is epoxy we're talking about here.
  • 0

Rawr.
User avatar
spudbud101
Sergeant First Class
Sergeant First Class
 
Posts: 138
Joined: Wed Jun 28, 2006 11:35 pm
Location: Colorado
Reputation: 0

Unread postAuthor: MrCrowley » Sat Jun 30, 2007 1:57 am

Yeah but bloody great epoxy. Probably one of the best commercialized epoxy there is
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: spudbud101 » Sat Jun 30, 2007 1:59 am

Great as it may be (I do agree, though, best there is), I don't think any epoxy will seriously handle this type of application.
  • 0

Rawr.
User avatar
spudbud101
Sergeant First Class
Sergeant First Class
 
Posts: 138
Joined: Wed Jun 28, 2006 11:35 pm
Location: Colorado
Reputation: 0

Unread postAuthor: turbohacker » Sat Jun 30, 2007 2:27 am

WELD IT!!!
Take it to a machine shop and ask them to put a quick spot weld on it, it wont cost $5, they will probobly do it for free if you are nice to them.

JB weld will not work in this app.

Another idea is to cut a groove into the sroket and axle and put a keyway into it. You could probobly do this with a simple angle grinder instead if a mill.
  • 0

<-- This is not a cat avatar

If it walks like a dog, sratches like a dog, and barks like a dog, than its probobly a...-TURTLE, it's a TURTLE!!! Cant you see?!!!

frankrede wrote:Great googlay mooglay!
Thats a beast!
User avatar
turbohacker
Major
Major
 
Posts: 393
Joined: Wed Dec 20, 2006 12:34 am
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: chaos » Sat Jun 30, 2007 2:52 am

turbohacker wrote:WELD IT!!!
Take it to a machine shop and ask them to put a quick spot weld on it, it wont cost $5, they will probobly do it for free if you are nice to them.

JB weld will not work in this app.

Another idea is to cut a groove into the sroket and axle and put a keyway into it. You could probobly do this with a simple angle grinder instead if a mill.


I agree with turbohacker, dont take the cheats way out.

a key would be perfect but by the sounds of it you probably cant get a keyway cut into an axle (without it costing anything anyways).
  • 0

User avatar
chaos
Brigadier General
Brigadier General
 
Posts: 1205
Joined: Wed Jan 17, 2007 8:31 am
Reputation: 0

Unread postAuthor: TurboSuper » Sat Jun 30, 2007 11:44 am

I know JB weld works on cracked engine blocks, but I wouldn't trust it to hold something under constant tension like that.
  • 0

"If at first you dont succeed, then skydiving is not for you" - Darwin Awards

TurboSuper
Brigadier General
Brigadier General
 
Posts: 986
Joined: Thu Jun 16, 2005 1:44 pm
Reputation: 0

Unread postAuthor: homedepotpro » Sat Jun 30, 2007 1:23 pm

i have thought of those options already. the problem is, i can't take it out of the case
Image
I had to permanently attach the spark plug and you can't take the motor out of the case without first removing the plug. I was planning of cutting of the chain guard to access the spindle and just making a quick fix. Btw im not planning to make a machine extreme with longevity. Also the sprocket is plastic, its from a chain detailer( i know, please don't give me a hard time, it was all i could find ).
  • 0

User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Unread postAuthor: rednecktatertosser » Sat Jun 30, 2007 10:32 pm

Where are you at cause if your near austin eithr me or my neighbor(a professional field weldor in the oil rig industry) sould do it for you.
  • 0

User avatar
rednecktatertosser
Colonel
Colonel
 
Posts: 590
Joined: Tue May 22, 2007 7:52 pm
Reputation: 0

Unread postAuthor: hi » Sat Jun 30, 2007 11:06 pm

doesnt that thing have to have some sort of transmition? when you stop you will have to turn off the motor, or am i missing something extreamly obvious?

anyway, i am with the guys that say you should take it to a welding shop. jb weld i think was originally designed for radiator leaks i think, not for putting on sprokets. it may work for a little bit, but would eventually break.
  • 0

"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
User avatar
hi
Major General
Major General
 
Posts: 1619
Joined: Thu Feb 01, 2007 9:28 pm
Reputation: 0

Unread postAuthor: homedepotpro » Sun Jul 01, 2007 12:52 am

i epoxied it anyway. its directly attached to the drive shaft. I compression start the scooter by pushing it. I removed the clutch because it not designed for this kind of app and it would have burned up real quick. btw i live in Washington. If i get this thing to run i will tell you guys. lets just consider this an experiment, all i can hope for is positive results.
  • 0

User avatar
homedepotpro
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 443
Joined: Sun Nov 26, 2006 1:00 am
Reputation: 0

Return to Non-Spudgun Related Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'