Homemade Parts!

PB Forum :: Mechanics' Lounge
Homemade Parts!
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Posted: Apr 30, 2008 at 1:12 Quote
Here's my lever blade that I made out of an old crankarm. Single finger operation. BTW this was before it was shaped further and polished....

photo

Posted: Apr 30, 2008 at 2:30 Quote
28t bash:


Unsecure image, only https images allowed: http://i17.tinypic.com/8fd5vnl.jpg

Unsecure image, only https images allowed: http://i17.tinypic.com/8a3av7p.jpg


now polished and lightened:
Unsecure image, only https images allowed: http://i30.tinypic.com/331ga55.jpg

Unsecure image, only https images allowed: http://i28.tinypic.com/2hyz6gg.jpg


Inner bash, for the ISCG mount tabs

Unsecure image, only https images allowed: http://i9.tinypic.com/6sl6kbk.jpg

Chainguide

Still unfinished:
photo

1072171



now it's finished and running since 27 September 2006, 0 fails, 0 close-calls, cost:0 Smile

I've also made a dual-ring chainguide for my brother's bikes..pretty simple design but works great

Posted: Apr 30, 2008 at 7:12 Quote
i saw somewhere a bike with disc protectors. Looked like half a chain guide mounted to the frame so you could grind without hitting your disc

Posted: May 1, 2008 at 11:05 Quote
MX bikes have disk protecters. Most do anyway =D

You guys make some badass parts Razz I wish i could, i need a good bashguard for my bmx lol.

Posted: May 1, 2008 at 11:09 Quote
dhman13: You're a badass dad.

Posted: Jul 14, 2008 at 16:00 Quote
Why topics on PinkBike always die?

my new creation, a light seatpost(don't know the weight but it's light)

photo

2248587



Edit: It weights 70g

Posted: Nov 8, 2008 at 15:01 Quote
photo

2672482

tensioner but it's black now.

Posted: Nov 8, 2008 at 15:17 Quote
cooper-xl wrote:
Why topics on PinkBike always die?

my new creation, a light seatpost(don't know the weight but it's light)

photo

2248587



Edit: It weights 70g
more pics

O+
Posted: Nov 8, 2008 at 16:33 Quote
i am currently working on the boomerang for a chain guide but i need some help as to roller placement in relation to the bashguard and chainring. do the rollers swing out behind the rin and just pull the chain toward itself or do they kind of pinch the chain to the ring?
EDIT: all i have so far is a cardboard template that i am using as a dry run and to make any adjustments i will post pics up if any1 is willing to help me?

Posted: Nov 8, 2008 at 16:35 Quote
blackXLabel13 wrote:
i am currently working on the boomerang for a chain guide but i need some help as to roller placement in relation to the bashguard and chainring. do the rollers swing out behind the rin and just pull the chain toward itself or do they kind of pinch the chain to the ring?
EDIT: all i have so far is a cardboard template that i am using as a dry run and to make any adjustments i will post pics up if any1 is willing to help me?

some do pinch and some dont,problem is your bashgaurd would have to be perfectly round.

just look at similar ones like mrp and such.

O+
Posted: Nov 8, 2008 at 16:44 Quote
marquis wrote:
blackXLabel13 wrote:
i am currently working on the boomerang for a chain guide but i need some help as to roller placement in relation to the bashguard and chainring. do the rollers swing out behind the rin and just pull the chain toward itself or do they kind of pinch the chain to the ring?
EDIT: all i have so far is a cardboard template that i am using as a dry run and to make any adjustments i will post pics up if any1 is willing to help me?

some do pinch and some dont,problem is your bashgaurd would have to be perfectly round.

just look at similar ones like mrp and such.
bashguard roundness wont be a problem but i am still unclear as to how your supposed to achieve clearence with the bashguard past the chain while still letting the rollers pinch the chain
EDIT: neverming i think i am going to slightly alter my design to incorpoerate something like e13's STP guide for the top

Posted: Nov 8, 2008 at 16:49 Quote
blackXLabel13 wrote:
marquis wrote:
blackXLabel13 wrote:
i am currently working on the boomerang for a chain guide but i need some help as to roller placement in relation to the bashguard and chainring. do the rollers swing out behind the rin and just pull the chain toward itself or do they kind of pinch the chain to the ring?
EDIT: all i have so far is a cardboard template that i am using as a dry run and to make any adjustments i will post pics up if any1 is willing to help me?

some do pinch and some dont,problem is your bashgaurd would have to be perfectly round.

just look at similar ones like mrp and such.
bashguard roundness wont be a problem but i am still unclear as to how your supposed to achieve clearence with the bashguard past the chain while still letting the rollers pinch the chain
EDIT: neverming i think i am going to slightly alter my design to incorpoerate something like e13's STP guide for the top

well you could tuck it in behind the bash but you might have clearence issues with your frame or sertain frames.

O+
Posted: Nov 8, 2008 at 16:56 Quote
marquis wrote:
blackXLabel13 wrote:
marquis wrote:


some do pinch and some dont,problem is your bashgaurd would have to be perfectly round.

just look at similar ones like mrp and such.
bashguard roundness wont be a problem but i am still unclear as to how your supposed to achieve clearence with the bashguard past the chain while still letting the rollers pinch the chain
EDIT: neverming i think i am going to slightly alter my design to incorpoerate something like e13's STP guide for the top

well you could tuck it in behind the bash but you might have clearence issues with your frame or sertain frames.
yeah thats why im deciding to go with a single roller on the bottom and then a stationary guide on the top mounted vertically or just a different style roller

Posted: Nov 8, 2008 at 16:59 Quote
blackXLabel13 wrote:
marquis wrote:
blackXLabel13 wrote:

bashguard roundness wont be a problem but i am still unclear as to how your supposed to achieve clearence with the bashguard past the chain while still letting the rollers pinch the chain
EDIT: neverming i think i am going to slightly alter my design to incorpoerate something like e13's STP guide for the top

well you could tuck it in behind the bash but you might have clearence issues with your frame or sertain frames.
yeah thats why im deciding to go with a single roller on the bottom and then a stationary guide on the top mounted vertically or just a different style roller

thats a toughy for sure.

the thing i like about mine is that you can adjust the upper portion of the guide so it sits 3mm above the chain which is recomended so i would say if you can make it adjustable.


 


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