As promised, here’s how I made my A frame. It’s really simple and cheap to make. Before starting, you need to do a bit of simple trigonometry to work out the measurements. In my case I wanted a height of 125cm and a base line of 150cm. Dividing the base line by two gives two right angle triangles, so you can solve the length of the remaining side, which is 146cm (the square of the hypotenuse equals the sum of the squares of the other two sides).
1) The first thing to do is to cut a length of pipe. I used 60cm, so each arm measured 30cm. It’s up to you how long this should be. I’d suggest a minimum of 15cm and a maximum of maybe 40cm. Much longer and the pipe will flex too much.
2) You need to bend the pipe. To make it easier you can heat it, but I bent mine gently without heating.
3) The next step is to check the nozzles fit over the end of your trekking poles. For my Black Diamond poles, they fitted perfectly. For other makes you may need to do some adjusting. Wrap the ends of the nozzles with duck tape. This needs to be thick enough that they fit tightly into the end of the pipe. Check with the walking pole inserted that there is as little play as possible.
6) At the apex, I’ve used a bit of handle bar micro fibre tape to cushion the A frame against the apex of the shelter. It’s probably not strictly necessary but it does provide some cushioning and grip.
And that’s all there is to it. Total weight for mine is 71g. Don’t forget to adjust the length of your trekking pole to allow for the tip inserted into the tube (for the Black Diamond poles it’s c.5cm). I was amazed how strong this frame is. In larger mid shelters, I think it’s wise to use strong trekking poles. For instance, in my Duomid, I would use my Leki Sherpa XLs rather than the Black Diamond Trail trekking poles.