Three Ball - Campus Can. Pinches for a 70 degree campus board.
Three Ball - Sphere holds
Three Ball - prototype Sphere holds, White is glow in the dark.
I won this hold in a raffle during the 2016 QCBC outdoor climbing competition.
- Three Ball large 1/2 sphere hold made of concrete. Awesome!!
Looks like I took second. What..... Chris Bastek beat me? And Mr. Queen Creek Brent Bingham gets pushed to third. Looks like the longer the pants are, the further down the podium you become. Ah yes the memories!!

MK - What is the story on these awesome pinch rails? Were these ever produced for public sale?

SD -Yo! The long one is the rainbow limiter, the shorter ones were experiments with bending the limiter mold. They are supposed to be roof pinches for a ninja warrior shenanigans.

MK - The rainbow limiter is a amazing hold!!!
Three Ball - Limiter 1 prototype, and Limiter 2 hold
Limiter 3, and Limiter 1 prototype
Three Ball - incredible overhang foot.
Left, Center, and Right versions. The prototype holds glow in the dark.
Three Ball - Slick texture Genius Disk with edge
Derek Scott demonstrating a Three Ball post hold.
Three Ball Climbing
- The Tryboard

MK - 12/22/2024 - Hello!!! What are the name of these and what are they used for?

SD - That’s the stages of product development of the Tryboard, the final product has teenuts in the back. You can screw one up in each corner of the door frame, and you have a hang board which you can bolt climbing holds to, and it can be used in places where there is no space above the doorway for a hang board.

MK - Interesting. Is the white one a template? I notice the purple Tryboard glows in the dark.

SD - The white was the first attempt, getting it 3-D printed and troubleshooting, after that I had it redesigned and CNC mill instead. I made the production mold from that CNC mill to plywood copy.
MK - Was the Tryboard eventually offered to the public? I don’t remember seeing it before in your shop so wondering if you made a number of them.

SD - Yeah they were, never really caught on though. I didn’t market them very well.

MK - Yes that’s really a interesting way to get around having the hang board above the door. Thanks for the info! Holidays Happy!

SD - Happy Holidays to you.