Quote:
Originally Posted by Leo.G
Oh, I thought the rim centre was going to be a bearing point but I just realised the bolts to the brackets. It's still an amazing looking set up!
Do the rims roll in any particular material to protect the timber?
Looking back it looks like a strip of mild steel but I'm both blind and stupid!
Probably nothing this sort of weight (I don't have a working crane) but I've often used the yellow tongue from flooring to act as a bearing/sliding surface which removes risk of wear and is easily gotten and replaced.
Do you have a permanent smooth concrete area to roll it out on?
Sorry, I always over design everything and I'd have to have a lead base so it was counterbalanced at all times, that or outriggers. Then again, I have a sloping, uneven yard and struggle to roll a welder on a stand without it rolling off (40Kg MIG welder).
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Just outside the garage door there is a hardstand area where I do my imaging and observing from. I wouldn't want to wheel it much further than that haha, the thing weighs a lot.
The trunions sit on HDPE pads (2 per side) the pads are 10mm thick and seem to ride pretty well. The hdpe might not be quite as slick as tpfe but it feels pretty acceptable to me, I might put a bit of soap on the trunions to try make the movement an little slicker. It isn't that it is sticky now, just the scope being so heavy makes the movement a one hand job instead of one finger job, oh the travesty.
Overall I am very pleased with the build. Only drawbacks at this stage is the insane top-heavy nature of a tall mount like this, one must be very careful when moving it and moving around it. It does also seem to take a second or two to settle as the moment arm is so long, I guess any sufficiently long instrument suffers with that same problem.