How are you attaching to the carbon tube? Any field tests yet? You're my hero.
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DIY sub-1lb climbing stick adventure!
- Thread starter Sandor27
- Start date
Sets up in the tree nicely...
Now the good and not so good news....
I used 5 minute epoxy to glue the steps onto the tube. I neglected to clean the tube before I applied the glue. I think there might be residual mold release agent on the tube since the epoxy does not adhere to the carbon. Like wax paper. So as soon as I stepped on the lower step it rotated, and you can see where I stepped on the top step it slid down the carbon tube....
The good news is that I was able to bounce on the top step and it did not bend at all.
Also the Amsteel rope knot I was trying out did not hold with a round tube. The knot worked fine for the square tube, I think the sharp edge bit into the rope. I had to add knots to keep the rope from slipping.
Well there you have it. A sub 1lb 2 step climbing stick. Spacing on the carbon stick is 17.5" (500mm tube with 2" tall bottom step).
And I probably will leave it here. I'm going to use SRT to climb the rest of this season and probably from here on out, also I have my Leverage sticks...
Another thought too.... the lighter the stick the more it rings when you smack it. So that's not good, but maybe some stealth tape and it'll be fine.
Q.E.D
Now the good and not so good news....
I used 5 minute epoxy to glue the steps onto the tube. I neglected to clean the tube before I applied the glue. I think there might be residual mold release agent on the tube since the epoxy does not adhere to the carbon. Like wax paper. So as soon as I stepped on the lower step it rotated, and you can see where I stepped on the top step it slid down the carbon tube....
The good news is that I was able to bounce on the top step and it did not bend at all.
Also the Amsteel rope knot I was trying out did not hold with a round tube. The knot worked fine for the square tube, I think the sharp edge bit into the rope. I had to add knots to keep the rope from slipping.
Well there you have it. A sub 1lb 2 step climbing stick. Spacing on the carbon stick is 17.5" (500mm tube with 2" tall bottom step).
And I probably will leave it here. I'm going to use SRT to climb the rest of this season and probably from here on out, also I have my Leverage sticks...
Another thought too.... the lighter the stick the more it rings when you smack it. So that's not good, but maybe some stealth tape and it'll be fine.
Q.E.D
ImThere
Well-Known Member
You sir are a rock star! Fantastic set up. I hope you finish these this off season.
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ImThere
Well-Known Member
"Holes cause carbon fiber to split"
Yup, plus all the stress would be on the carbon at the pin.
You can see where I drilled through the tube for tye rope, I put a collar to reinforce that area.
Epoxy is generally used to fix carbon in place. My problem was the cheap 5 minute epoxy, and not degreasing the carbon tube.
Yup, plus all the stress would be on the carbon at the pin.
You can see where I drilled through the tube for tye rope, I put a collar to reinforce that area.
Epoxy is generally used to fix carbon in place. My problem was the cheap 5 minute epoxy, and not degreasing the carbon tube.
pesqimon
Well-Known Member
The carbon rod can handle the force towards the tree that the rope/knot applies? It won’t snap that way?
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Ontariofarmer
Well-Known Member
- Joined
- Dec 25, 2015
- Messages
- 5,249
Seacowboy
New Member
That collar you put in the middle to attach your rope, if you added square aluminum outside and welded the round into the square be an option? If so on the outer side of the square you could weld 2 studs to work as cleats for your tie off.
Also for top step you could weld a cap on to prevent the downward slippage, not sure about addressing the bottom step beyond your thoughts of degreasing the carbon fiber. Maybe glassing over the 2 pieces, not sure if fiberglass will bond with the CF. Just an idea.
Also for top step you could weld a cap on to prevent the downward slippage, not sure about addressing the bottom step beyond your thoughts of degreasing the carbon fiber. Maybe glassing over the 2 pieces, not sure if fiberglass will bond with the CF. Just an idea.
Cript2014
Well-Known Member
This looks awesome I’m very interested to see how these work!
Sure, but round is a stronger shape.
huntmore
Active Member
what was the cost difference of the carbon fiber tube vs aluminum sq tube
You can get 6' of 6061 1"x1" x 1/16" wall for $24 from McMaster Carr. Plus $15 shipping is about $13 per tube. The 25mm OD/1.5mm wall carbon fiber tubes I bought on eBay were $14 with $5 shipping each. So only about $6 more per 2' (500mm) section.
These carbon fiber tubes are actually stronger in bending than the 1/16th wall aluminum. There was little noticeable flexing when I was bouncing on the top step.
Deltahuntr
Well-Known Member
Great build and under a pound! There are some specs I didn’t see or over looked in description. What is the inside diameter or wall thickness of tubing? Where did you acquire these sticks? What is the thickness of collars, steps and stand offs? Do you believe a insert/sleeve reinforcing inside carbon tubing would be beneficial in any way?
Deltahuntr
Well-Known Member
You were answering some of my questions while I was typing?