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Custom bash guard

neilan11

Chimp
Apr 26, 2004
52
0
ya i have been makign them with david today i did soem test on it such as hitting itwith a 20 pond sledge hammer and only making slight marks in one i threw it at a brick wall prob 50 times and drop 100 pound dumbell on it a few times and all there was was marks. i hit it with a spliting maul and it put a deep gough in it but did not crack this crap is strong and will not break
 

neilan11

Chimp
Apr 26, 2004
52
0
where have u sent them to get the iozined i have looked a powder coating i know a guy with a shopp but i odnt know if thats woth it
 

neilan11

Chimp
Apr 26, 2004
52
0
but anyway the lexan is starting to piss me off anyway so im think im ognna start doing ionized aluminum and diamondplate instead and by the wya i was the oen maching those ring not david lol but he did help alot and make the oen with the flames
 

draco

Monkey
Mar 5, 2003
126
0
Roche-STAR
I'd like some factual calrification on why lexan/polycarbonate is such a bad material to use. Makrolon, which evil uses, is also polycarbonate. boy, those break all the time. and boy, all those bmx - lexan guards break all the time too.

you know.

from.

hitting them. break allll the time.. riiiight. I've spent a ridiculous amount of time on "off-the-shelf" lexan (GE and the Rhino stuff) with no issues. fast for grinding, long lasting, and light.
 

MikeD

Leader and Demogogue of the Ridemonkey Satinists
Oct 26, 2001
11,737
1,820
chez moi
So since Spookydave lathed down my E13 for me, should I be flame-polishing the edge or something? It's worked fine so far...
 

Westy

the teste
Nov 22, 2002
56,431
22,523
Sleazattle
MikeD said:
So since Spookydave lathed down my E13 for me, should I be flame-polishing the edge or something? It's worked fine so far...
[E-Engineering/Speculation]
Air friction produced from near mach speeds has obviously provided a similar effect as flame polishing. Slower riders may not be able to obtain similar results and risk death from extreme bash guard failure.[/E-Engineering/Speculation]
 

MikeD

Leader and Demogogue of the Ridemonkey Satinists
Oct 26, 2001
11,737
1,820
chez moi
Westy said:
[E-Engineering/Speculation]
Air friction produced from near mach speeds has obviously provided a similar effect as flame polishing. Slower riders may not be able to obtain similar results and risk death from extreme bash guard failure.[/E-Engineering/Speculation]
I was thinking of taking it down to Burger King and putting it on the flame broiler, actually.
 

Westy

the teste
Nov 22, 2002
56,431
22,523
Sleazattle
MikeD said:
I was thinking of taking it down to Burger King and putting it on the flame broiler, actually.
Great idea, I can see faux grill marks on bashguards becoming the latest fad. The new girl pants possibly?
 

MikeD

Leader and Demogogue of the Ridemonkey Satinists
Oct 26, 2001
11,737
1,820
chez moi
"Faux" my low-rise ass...them's is real grill marks, my man.
 

dwaugh

Turbo Monkey
May 23, 2002
1,816
0
Bellingham, Washington ~ U.S.A.
neilan11 said:
but anyway the lexan is starting to piss me off anyway so im think im ognna start doing ionized aluminum and diamondplate instead and by the wya i was the oen maching those ring not david lol but he did help alot and make the oen with the flames
You are the one making them, I'm the one selling them... Plus I do all the custom ones... :think:

I'd like some factual calrification on why lexan/polycarbonate is such a bad material to use. Makrolon, which evil uses, is also polycarbonate. boy, those break all the time. and boy, all those bmx - lexan guards break all the time too.

you know.

from.

hitting them. break allll the time.. riiiight. I've spent a ridiculous amount of time on "off-the-shelf" lexan (GE and the Rhino stuff) with no issues. fast for grinding, long lasting, and light.
At least someone here knows what their talking about. ;)
 

Rik

Turbo Monkey
Nov 6, 2001
1,085
1
Sydney, Australia
neilan11 said:
i hit it with a spliting maul and it put a deep gough in it but did not crack this crap is strong and will not break
Hit the edge, or the face?
I've seen 2 DIY lexan bashrings fail pretty badly, granted from square edge impacts, but it was enough to change my custom lexan ring for a genuine E13.
 

draco

Monkey
Mar 5, 2003
126
0
Roche-STAR
do you guys have acrylic and poly confused? all clear plastics are not the same. acrylic will totally shatter and crack and be gone, polycarbonate really more tears than anything. when mixed with glass, its used as bulletproof glass.
 

Kornphlake

Turbo Monkey
Oct 8, 2002
2,632
1
Portland, OR
draco said:
I'd like some factual calrification on why lexan/polycarbonate is such a bad material to use. Makrolon, which evil uses, is also polycarbonate. boy, those break all the time. and boy, all those bmx - lexan guards break all the time too.

you know.

from.

hitting them. break allll the time.. riiiight. I've spent a ridiculous amount of time on "off-the-shelf" lexan (GE and the Rhino stuff) with no issues. fast for grinding, long lasting, and light.

E13 rings are injection molded, the mold is polished so there are very few if any surface defects and the nature of injection molding can make parts inherently stronger if the mold is thought out well. As the material passes through the sprue into the mold cavity the polymer chains assume a certain orientation which you don't necessarily get when you machine down a chunk of PC. I'm not saying that a machined bash ring couldn't last a long time, because I have no experience with one, but I'm saying that there are a couple of real engineering reasons why a molded PC part is stronger than a machined PC part, which should mean a whole lot more than anecdotal evidance and specuation. These guys say they've machined a couple and tried to break them without much sucess, in essence they've done some R&D to prove that the shortcomings of their process only limit the theoretical strength of the material as the forces the bash ring would see in real life are far enough below the threshold for failure. Or maybe their testing methoods are flawed, who knows. Like I said having made my own bash ring, if I wanted another one I'd just buy one that is commercially available because it really doesn't cost much more and the finish is going to be better.
 

dwaugh

Turbo Monkey
May 23, 2002
1,816
0
Bellingham, Washington ~ U.S.A.
draco said:
do you guys have acrylic and poly confused? all clear plastics are not the same. acrylic will totally shatter and crack and be gone, polycarbonate really more tears than anything. when mixed with glass, its used as bulletproof glass.
Yes, my friend has told me that what he orders is the bullet proof stuff, and yes, this stuff sure does not shatter, it tears if anything.
 

BigHit-Maniac

Monkey
Jul 5, 2004
245
0
Las Vegas, NV
If you could make a 4-bolt (Truvativ Holzfeller), metal bash-guard, with flames all the way around it.... I'd buy one.


How much would you charge me? I think it'd set off my D9 pretty well.

Also, do you have anyway of "saw-toothing" the outter edge? I'd like to be able to dig into **** when I want to. I hate the smooth ring that came stock on my bike. Especially for this one trail I ride, which has a 4-foot diameter tree with NO WAY of hopping over it. You literally gotta dig your ring in, and pedal it while hopping.

Anyway, lemmie' know. If it's only $20 USD shipped.. I'd be HAPPY to buy one from you.

-Matt
 

neilan11

Chimp
Apr 26, 2004
52
0
well hear is one right of the production lin and they see mto be geting extremley better everytime and the new polish is sweet anywya would anyone be interested in purchasing this fro 15 bucks, its 104mm 4 bolt
 

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