Jeremy11 from the rockclimbing.com forums has created a very cool homemade cam for offwidth cracks. The cam is bigger than the biggest camalot (camalot size 6, range: 114-195 mm, weight: 650g) weighing in at around 850g with a range of very roughly 130-210 mm. He used an oversized solid aluminium axle - the original intent was to minimize weight but it turned out that over-sized aluminium axle was heavier than the steel alternative that he had considered.
The homemade cam side by side with other big cams. Image from rockclimbing.com forums
He tested prototypes of the cam and they held over 14kN - pull tested using a jeep!
The homemade cam side by side with other big cams. Image from rockclimbing.com forums
He tested prototypes of the cam and they held over 14kN - pull tested using a jeep!
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