Homemade Parts!

PB Forum :: Mechanics' Lounge
Homemade Parts!
Author Message
flag MTBLegend92
Posted: Jan 14, 2015 at 21:08 Quote
I'm an engineer and a decent welder, and that is 100% a bad idea. Insufficient fusion of the majority of your weld, with dozens of holes and other potential points for failure to occur at. Being able to stand on it without it breaking is not a good test of structural integrity for the application. A nose heavy landing or maybe even hard enough braking with the front wheel could break that fork and allow you to test the friction coefficient of human skin.

The weld should be stronger than the surrounding material, and I have zero doubt in my mind that your weld would snap long before your tubes start tearing if I put that in a vice and tried to break it.
flag turtlesauce2000
Posted: Jan 15, 2015 at 2:10 Quote
What im wondering is....

Why?

Like why build such a rafty looking fork when you could pick one up second hand for less?
flag NotDannyHart
Posted: Jan 15, 2015 at 9:04 Quote
christianridesbikes wrote:
Wouldn't it be better to just tack it together and get a pro to weld it?
flag iffy
Posted: Jan 15, 2015 at 9:22 Quote
thinking of making this

chainkeeper x speed mod. lose weight fast 10
flag mallorcadave
Posted: Jan 15, 2015 at 9:27 Quote
iffy wrote:
thinking of making this

chainkeeper x speed mod. lose weight fast 10

As you've posted it in the buy sell, I thought you already had!lol
flag iffy
Posted: Jan 15, 2015 at 9:28 Quote
its still in paper form...Redface

but is it a crap idea?
flag Rattsl
Posted: Jan 15, 2015 at 9:41 Quote
BSal wrote:
to quote PB celebrity "Do it and post results".
+20
flag mallorcadave
Posted: Jan 15, 2015 at 10:00 Quote
iffy wrote:
its still in paper form...Redface

but is it a crap idea?

For the price your asking no
flag jamieridesbikes
Posted: Jan 15, 2015 at 10:17 Quote
I'd consider one, just need to work out if my cassette can be taken apart to get the range of cogs I'd want
flag NotDannyHart
Posted: Jan 15, 2015 at 14:08 Quote
iffy wrote:
thinking of making this

chainkeeper x speed mod. lose weight fast 10
I'd say you could make the holes bigger to save more weight but it's a good idea!
flag Mr-Magura
Posted: Jan 15, 2015 at 14:42 Quote
IffyIndustries at it again I see.

6028T6, what's the thought behind that choice?


Magura Smile
flag iffy
Posted: Jan 15, 2015 at 14:51 Quote
Mr-Magura wrote:
IffyIndustries at it again I see.

6028T6, what's the thought behind that choice?


Magura Smile

the thought that controlled the finger was confused, its going to be 6082 Smile

Iffy Confused
flag Ploutre
Posted: Jan 15, 2015 at 15:02 Quote
^ yeah, you don't really need any structural strength, it just prevents the cassette from moving over.
flag hawskill
Posted: Jan 15, 2015 at 17:30 Quote
photo
photo

Dont think NASA didn't use JB weld to hold the space shuttle together.
Compression and rebound dampers installed.
flag therealtylerdurden
Posted: Jan 15, 2015 at 18:09 Quote
hawskill wrote:
Dont think NASA didn't use JB weld to hold the space shuttle together.
Compression and rebound dampers installed.

Is it a damped umbrella stand??

 


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