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Master Cam 0 - no texture on lobes?
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Jun 2, 2011
I got a set of mastercams over the holiday weekend on sale. They showed up today from backcountrygear.com and look great, except the #0 has no texture on any of the lobes.

The lobes on the #0 look like a polished version of the top cam in this picture vs the bottom cam which all the other sizes look like and have the notches in the lobes. (picture is not of my cams, just from a google search)

supertopo.com/photos/0/97/1311...

Is this normal or should it have some texture like my #4,#3,#2,#1,& #00.
DrApnea
From Wenatchee, WA
Joined May 24, 2011
150 points
Jun 3, 2011
The grooves do not give the cam holding power. Friction does. Deep grooves may help a cam "tune" to the rock, but are in fact not what makes a cam stick. Don't sweat it. Tony B
From Around Boulder, CO
Joined Jan 1, 2001
21,610 points
Jun 3, 2011
is it me or does it also look like an offset cam? The lobes on the right look smaller than the ones on the left. Could just be me. Ice4life
From US
Joined Nov 4, 2010
5 points
Jun 3, 2011
Ice4life wrote:
is it me or does it also look like an offset cam? The lobes on the right look smaller than the ones on the left. Could just be me.

I see what you are saying Ice, something just doesn't look right.

Regarding the OP, I would send the cam back, if that step got missed, who knows if something else was missed. I'd rather be safe than ever question that cam on a climb.
Derek W
Joined Jun 27, 2008
0 points
Jun 3, 2011
So no groves on this #0 size is normal for newer ones then?

Here is a picture of the Master Cam I had questions about. The #0 is the 3rd from the left

Rock Climbing Photo: Master Cam Lobes
Master Cam Lobes


I know the groves don't give it holding power, but it looks out of place and I wanted to make sure that this did not miss part of the production process, because if it did, it makes me worry about what else might have been overlooked.
DrApnea
From Wenatchee, WA
Joined May 24, 2011
150 points
Jun 3, 2011
I just bought a new Master Cam 0 and it has grooves (just a few). My two year old Master Cam 0 has a few grooves too.

I have read that grooves on cam lobes are not needed and are just for marketing.
Dave Swink
From Boulder, Co
Joined Jun 14, 2007
0 points
Jun 3, 2011
that's an offset... are the sling and the thumb loop plastic different colors? Keenan Waeschle
From Bozeman, MT
Joined Feb 8, 2010
165 points
Jun 3, 2011
It could be an offset, but I just looked at a 00/0 and a 0/1 and they both have a few lobe grooves too. Dave Swink
From Boulder, Co
Joined Jun 14, 2007
0 points
Jun 3, 2011
Tony B wrote:
The grooves do not give the cam holding power. Friction does. Deep grooves may help a cam "tune" to the rock, but are in fact not what makes a cam stick. Don't sweat it.


+1 The grooves are a gimmick. The C3's 0 and below also do not have any grooves. For a long time, most cams were groove-less.
TomCaldwell
From Clemson, S.C.
Joined Jun 2, 2009
2,393 points
Jun 3, 2011
Grey is smaller than purple in the Mastercams though, I think it is odd that the smallest is grooved and the next size larger is not. I wish my rack was here so I could take a look at mine for you. Derek W
Joined Jun 27, 2008
0 points
Jun 3, 2011
The link in the OP was to show what I meant, they are not my cams, and yes there was an offset there that had groves. The picture actually posted are my cams which show the lobes of the regular mastercams # 2,1,0,00. I am not debating about the utility of the groves, I just want to know if this one missed a step in production. I was hoping it would be a strait forward answer, but now I am just going to give Met a call this AM and figure it out. Thanks for the help though. I will post the answer when I hear. DrApnea
From Wenatchee, WA
Joined May 24, 2011
150 points
Jun 3, 2011
DrApnea wrote:
The link in the OP was to show what I meant, they are not my cams, and yes there was an offset there that had groves. The picture actually posted are my cams which show the lobes of the regular mastercams # 2,1,0,00. I am not debating about the utility of the groves, I just want to know if this one missed a step in production. I was hoping it would be a strait forward answer, but now I am just going to give Met a call this AM and figure it out. Thanks for the help though. I will post the answer when I hear.


The answer: Metolius left out the grooves in the lobes of the 0 on purpose. There's a previous thread that isn't about this specifically but talks about the grooves being left out, and Metolius said it was on purpose
Evan Sanders
From Westminster, CO
Joined Dec 10, 2010
10 points
Jun 3, 2011
Evan, are you thinking of this thread or another? brenta
From Boulder, CO
Joined Feb 2, 2006
15 points
Jun 3, 2011
The groove in the #0 lined up with the cam-stop resulted in cam-stop failure, which resulted in an inability to place the cams since the springs are held in place by the cam-stops. Glad to see Metolius fixed the problem. Darin Berdinka
Joined May 1, 2009
60 points
Jun 3, 2011
TomCaldwell wrote:
For a long time, most cams were groove-less.


When was this, exactly? I am looking straight at a set of original forged friends, aka the first commercial cams ever, which are grooved.
shoo
Joined Aug 9, 2010
0 points
Jun 3, 2011
I just got off the phone with metolius and it appears the did remove texture grooves from the #0 & 00 cams because of the camstop issue mentioned above. They said warranty on cams is 1yr, however since they know about the issue, if a camstop breaks off, even if it has been over one year, then they would replace the cam as if it were still under warranty with one like my #0. The grooves are just for show, and not necessary. By removing them the camstop was stronger so they did this on the 0 & 00. He said it will not affect cam strength, only the camstop strength in case it gets weighted fully open, and to use the cam as is without worry. Besides these are not full strength camstops to be used as passive gear anyway. DrApnea
From Wenatchee, WA
Joined May 24, 2011
150 points


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