There are options in the UK to purchase 20mm pultruded carbon-fibre sections with a wall-thickness of 1.50mm to suit tube-connectors, but there are reasons not to do so:
Despite recent rises in commodities, aluminium remains almost ten times cheaper.
It can be cut to length from stock unlike preset fibre lengths brought in from Holland.
It can be re-purposed in future prototypes or else recycled.
I can drive up the road to collect and doughnuts usually do for cutting by the staff.
It comes in a range of dimensions that are easy to scale, whereas carbon does not.
You can re-work metal whereas composites are effectively single-use use plastics.
Enough said?
