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Building a Cam
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By Noah Fogel
From Cbad CA
Apr 9, 2012
me

Sounds scary be carefully man.


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By Woodchuck ATC
Apr 9, 2012
Rock Wars, RRG, 2008

Looking 'bitchin' good so far.


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By kennoyce
From Layton, UT
Apr 9, 2012
Climbing at the Gallery in Red Rocks

Aric Datesman wrote:
Oops! There was a good bit of behind-the-scenes unpleasantness with the 2010 comp and I apparently did too good a job forgetting everything about it. Sorry!


I'm just messing with you Aric, no worries.


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By mountainhick
From Black Hawk, CO
Apr 9, 2012

Really cool project Kevin, looking forward to seeing more progress.

You said this is for school, might be good to spell axle correctly for anything written and submitted for your project.


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By "H"
From Manitou Springs
Apr 9, 2012
Axes glistening in the sun

That is cool! Looks like an old rigid friend.


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By Ben Beard
From Superior, AZ
Apr 10, 2012
roo, my only son, the stare that takes down a herd of 'stock

this has to be the best thread (polite, interesting, and progress) on MP!


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By Locker
From Yucca Valley, CA
Apr 10, 2012
...

^^^

Totally AGREE!

Cool and fun thread!


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By Kevin Brooks Henry
From Iowa City, IA
Apr 10, 2012
close up

UPDATE:

Spent yesterday and today cutting out and finishing lobes. Ready to begin cutting holes for axle and lightening holes. Can't find a drillbit that works though, so I might have to use a smaller size one and file out the inside until the lobes are loose on the axle. Ben Hicks- luckily this is the one class that requires zero writing, although thanks for pointing that out. Ben Beard- Thanks! I am really enjoying working on this project and hope to finish in the next week or so. The feedback I have received from everyone on MP has been great.


All four machined lobes next to the G4R template lobe
All four machined lobes next to the G4R template lobe


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By jake 356
From worcester
Apr 10, 2012

frekin awesome way cooler than the gun cabinet i made in high school!!


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By Kevin Brooks Henry
From Iowa City, IA
Apr 11, 2012
close up

UPDATE:

After messing up another lobe (lesson learned, go slow) I milled another and got it cut today. After that and a bit of searching, I found a drill bit slightly larger than the axle, and drilled the holes for the lobes to fit on the axle. Tomorrow I plan on working on trigger wire holes and holes for the pin that will hold the spring on.


Side view of lobes with stem
Side view of lobes with stem



Top view of just lobes
Top view of just lobes



Top view of lobes and stem
Top view of lobes and stem


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By TDF-Tommy
From Falls Church
Apr 11, 2012
Breithorn

Dude, good on'ya. I would have been trying to find a way to smoke out of it in HS.


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By Woodchuck ATC
Apr 11, 2012
Rock Wars, RRG, 2008

jake 356 wrote:
frekin awesome way cooler than the gun cabinet i made in high school!!


gun cabinet? shit, we were stuck with making a metal ash tray(before political correctness days).

In the 70's when guys were first admitted to 'home economics' classes like sewing, the Frostline Kits company kept many an outdoor guy busy designing and sewing up either a down vest or jacket, or a sleeping bag in high school. That was worh the project for sure.


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By Kevin Brooks Henry
From Iowa City, IA
Apr 12, 2012
close up

UPDATE:

Getting close, got the cam stops/spring pins installed in the lobes today. Just have to add lightening and trigger wire holes and finish the trigger bar them I'm basically done.


The lobes with cam stops/spring pins
The lobes with cam stops/spring pins



Another shot of just the lobes
Another shot of just the lobes



The stem with the lobes attached to check fit
The stem with the lobes attached to check fit



Another shot of the stem with lobes
Another shot of the stem with lobes


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By Ian Stewart
Apr 12, 2012

This is an awesome project dude, looks like a ton of fun! I am curious though, could you not have gotten a piece of aluminum closer in width to the lobes instead of having to mill off what looks like almost half of a thicker piece?


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By Ben Beard
From Superior, AZ
Apr 12, 2012
roo, my only son, the stare that takes down a herd of 'stock

pm sent on buying the cam...


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By Peter Franzen
Administrator
From Phoenix, AZ
Apr 13, 2012
Belay

Nice work!

Let me know when you start making new offset Alien clones.


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By jack s.
From Kamloops, BC
Apr 13, 2012
Mean Green P2

This is about the coolest thing I have seen in a while!

When you move on for your engineering degree it will be fun to do some load testing on this in your Mechanics of Materials class...


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By rogerbenton
Apr 13, 2012
Whoever this guy is, he's just plain irresponsible.

looking good kevin.
any plans to put some texture or ribbing on the lobes?


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By Mike Pharris
From Longmont, CO
Apr 13, 2012
Climbing above Black Lake

way cool. been fun following this project.


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By Kevin Brooks Henry
From Iowa City, IA
Apr 14, 2012
close up

UPDATE:

Yesterday I added lightening holes and trigger wire holes to the lobes. Geting really close and all the machining that's left to do is to machine a trigger bar. I was originally going to go with a round bar, but attempting to drill small holes in it has broken several bits, so I am going to machine a small flat rectangular bar instead. Will also cut teeth into the lobes on Monday. Ian Stewart- I wish I didn't have to machine so much off, seems like a waste to me, but the plate I ordered was the thickness of the stem, which is what I needed.


All of the lobes ready for teeth
All of the lobes ready for teeth



Up close detail of machining done to lobes.
Up close detail of machining done to lobes.


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By Kevin Brooks Henry
From Iowa City, IA
Apr 16, 2012
close up

UPDATE:

Got the teeth cut into the lobes today and started assembling the cam. Got the upper part of the trigger wires attached and a trigger bar machined. Unfortunantly, the trigger bar was a bit small, so tomorrow I will machine a new one and hopefully finish the cam.


Almost there...
Almost there...



I know the lobes are a bit tweaked, but once I add another washer to each side they should be fine.
I know the lobes are a bit tweaked, but once I add another washer to each side they should be fine.


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By TDF-Tommy
From Falls Church
Apr 16, 2012
Breithorn

Looking good! I know this is your baby, but are you going to test it when complete?


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By Ezekiel Thornton
From Akron, Ohio
Apr 17, 2012
Top of Castleton

looking good amigo


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By randy88fj62
Apr 17, 2012
Thunderbolt Peak in the Palisades

Project looks great. Thanks for cotinuing to share your work.


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By Locker
From Yucca Valley, CA
Apr 17, 2012
...

When you get done with that cam...

make me a 1.25 and a 1.75...

I can't for the life of me find any...

LOL!!!...



On a more serious note:

The project appears to be going well...

GOOD job young man!!!...


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