Black knight build step 7

Step 7: (Sort of) More of an expansion of step 6 really, here is a photo of one of the reinforcement 'bits' added to the inside of the tube, you want to add as many of these as is practical whilst leaving small gaps as was stated in step 6 so that the discs can fit in-between, make sure you leave a bit of room at the top too as you will be gluing one of the discs underneath the existing one.

Yet again, clamp, clamp, clamp.