Planet Minis

C_Thut · 09-09-2006, 06:54 PM

im thinking about making some homemade bar clamps. im going to use some aluminum stock that i had laying around. i was wondering can u case harden aluminum and if so should i harden these clamps?
im going to try to get these done by tuesday since thats the last day of shop rotation so hopefully ill have pics up by then.
for now ive got an iso view of what they should look like

arlindsay1992 · 09-09-2006, 07:00 PM

Someday I might be able to make my own stuff in shop class. We're still using wood. But to get to the point, go ahead an make them. Then you can put on whatever BMX bars you want. Oh yeah. Do you still want the ignition key switch? I have it all boxed and ready to ship just waiting for payment.

50WHIP · 09-09-2006, 07:07 PM

My brother is a machinest and made my top plate,risers,and clamps with no case hardening and after three years of hard abuse still no problems.Wouldn't hardening them make them more brittle and have more of a tedency to break?

C_Thut · 09-09-2006, 07:08 PM

ive got alot of other priority stuff to buy for the z first, so if someone wants it sell it to them but if u still have it when everythin gets straightened out with the z then ill buy it.

C_Thut · 09-09-2006, 07:09 PM

Quote:

Originally Posted by 50WHIP

My brother is a machinest and made my top plate,risers,and clamps with no case hardening and after three years of hard abuse still no problems.Wouldn't hardening them make them more brittle and have more of a tedency to break?

ya that makes sence i think ill just get them anodized

makotosun · 09-09-2006, 07:21 PM

You might try to go to a Motorcycle wrecking yard and get some off of another bike. Most all bikes from the '60s through the 80's used 7/8" bars, and the clamps simply bolt onto the top of the triple. A lot easier than reinventing the wheel. Plus, you know they have plenty of strength.

The sets I have gotten have all been under $15 bucks

C_Thut · 09-09-2006, 07:44 PM

ill take my chances and make my own its not gonna be that hard

aclark092 · 09-09-2006, 08:57 PM

I dont think you can case harden aluminum....You have to get steel above the aluminum melting temp to do case harden steel. All of the case hardening I did was with steeel. You gotta know when to dunk it by the color changes on the piece.

C_Thut · 09-09-2006, 09:06 PM

thanks for all the input guys cant wait to start, thinkin i should buy my own mini lathe and mill. id have them done by now if i had my own

lowbike1 · 09-09-2006, 11:26 PM

My brother made a set for his bike exactly how you pictured them. about 3" tall. All he used was a drill press

C_Thut · 09-10-2006, 09:01 AM

howd he do the 7/16" radius where the bar rests in?

arlindsay1992 · 09-10-2006, 10:13 AM

I think you mean 7/8?

C_Thut · 09-10-2006, 11:31 AM

7/8" is the diameter 7/16" is the radius ( half the diameter)

dayj1 · 09-10-2006, 11:59 AM

Quote:

Originally Posted by C_Thut

howd he do the 7/16" radius where the bar rests in?

You could just drill a hole in the aluminum stock before cutting it into 2 pieces. That way you'd end up with a radius in each piece that line up perfectly.

/dayj1

C_Thut · 09-10-2006, 12:07 PM

thats the way i was planning on doing it but i just woke up so i wasnt really thinking at the time. im going to be using a mill so i can square the block too.

C_Thut · 09-10-2006, 02:05 PM

how much would it cost to get something like this anodized?

arlindsay1992 · 09-10-2006, 04:04 PM

Oh yeah, radius. I wasn't really in the math mood. School only started on the fifth so I can't think yet.

symp · 09-10-2006, 10:16 PM

Quote:

Originally Posted by C_Thut

how much would it cost to get something like this anodized?

not alot, free if you know somebody, anodizing really isint that expensive, especially on such a small and simple part

davez · 09-10-2006, 11:02 PM

the strength of billet alumunium is all in it's alloying and is desingnated T-whatever- number, look up what grade alumuninum alloy you want depending on the characteristics you want, or just go for aircraft grade. Anodizing is just a surface layer, basically corrosion that protects the alloy from further corrosion and turns it blue or gold

lowbike1 · 09-11-2006, 12:04 AM

Quote:

Originally Posted by dayj1

You could just drill a hole in the aluminum stock before cutting it into 2 pieces. That way you'd end up with a radius in each piece that line up perfectly.

/dayj1

ya thats what he did, been about a yr and they are still working fine

09-09-2006, 06:54 PM	#1 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	homemade bar clamps im thinking about making some homemade bar clamps. im going to use some aluminum stock that i had laying around. i was wondering can u case harden aluminum and if so should i harden these clamps? im going to try to get these done by tuesday since thats the last day of shop rotation so hopefully ill have pics up by then. for now ive got an iso view of what they should look like

09-09-2006, 07:00 PM	#2 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,369	Someday I might be able to make my own stuff in shop class. We're still using wood. But to get to the point, go ahead an make them. Then you can put on whatever BMX bars you want. Oh yeah. Do you still want the ignition key switch? I have it all boxed and ready to ship just waiting for payment.

09-09-2006, 07:07 PM	#3 (permalink)
50WHIP 3rd Gear Member Join Date: Apr 2005 Location: INDIANA PA. Posts: 1,991	My brother is a machinest and made my top plate,risers,and clamps with no case hardening and after three years of hard abuse still no problems.Wouldn't hardening them make them more brittle and have more of a tedency to break?

09-09-2006, 07:08 PM	#4 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	ive got alot of other priority stuff to buy for the z first, so if someone wants it sell it to them but if u still have it when everythin gets straightened out with the z then ill buy it.

09-09-2006, 07:21 PM	#6 (permalink)
makotosun 2nd Gear Member Join Date: Apr 2005 Location: Washington (southwest) Posts: 510 My Mood:	You might try to go to a Motorcycle wrecking yard and get some off of another bike. Most all bikes from the '60s through the 80's used 7/8" bars, and the clamps simply bolt onto the top of the triple. A lot easier than reinventing the wheel. Plus, you know they have plenty of strength. The sets I have gotten have all been under $15 bucks

09-09-2006, 07:44 PM	#7 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	ill take my chances and make my own its not gonna be that hard

09-09-2006, 08:57 PM	#8 (permalink)
aclark092 2nd Gear Member Join Date: Aug 2005 Location: Trout Run, PA Posts: 511	I dont think you can case harden aluminum....You have to get steel above the aluminum melting temp to do case harden steel. All of the case hardening I did was with steeel. You gotta know when to dunk it by the color changes on the piece.

09-09-2006, 09:06 PM	#9 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	thanks for all the input guys cant wait to start, thinkin i should buy my own mini lathe and mill. id have them done by now if i had my own

09-09-2006, 11:26 PM	#10 (permalink)
lowbike1 3rd Gear Member Join Date: Oct 2004 Location: Maple Ridge BC Canada Posts: 2,125	My brother made a set for his bike exactly how you pictured them. about 3" tall. All he used was a drill press

09-10-2006, 09:01 AM	#11 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	howd he do the 7/16" radius where the bar rests in?

09-10-2006, 10:13 AM	#12 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,369	I think you mean 7/8?

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09-10-2006, 11:31 AM	#13 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	7/8" is the diameter 7/16" is the radius ( half the diameter)

09-10-2006, 12:07 PM	#15 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	thats the way i was planning on doing it but i just woke up so i wasnt really thinking at the time. im going to be using a mill so i can square the block too.

09-10-2006, 02:05 PM	#16 (permalink)
C_Thut 2nd Gear Member Join Date: Jun 2006 Location: morris/wolcott CT Posts: 322	how much would it cost to get something like this anodized?

09-10-2006, 04:04 PM	#17 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,369	Oh yeah, radius. I wasn't really in the math mood. School only started on the fifth so I can't think yet.

09-10-2006, 11:02 PM	#19 (permalink)
davez 2nd Gear Member Join Date: Dec 2005 Posts: 769	the strength of billet alumunium is all in it's alloying and is desingnated T-whatever- number, look up what grade alumuninum alloy you want depending on the characteristics you want, or just go for aircraft grade. Anodizing is just a surface layer, basically corrosion that protects the alloy from further corrosion and turns it blue or gold