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depends what brand it is, but Bunnings have assorted spring packs and bolts to do what you need. Be careful that the adjusting bolts cannot protrude far enough to touch the mirror (maybe even use tubular spacers over the adjusting bolts to stop this happening).
However, I would recommend that you seriously consider shortening the OTA tube. It is easy to do, keeps the standard hardware and will result in a much more stable arrangement. The lock bolts will hold everything fairly well when tight, but they are backed off to adjust collimation and that is when the floppiness of longer adjusting bolts becomes a real pain. In use, the mirror will also move around more with changing attitude if you have long bolts, which can affect collimation and CC performance.
Last edited by Shiraz; 24-10-2014 at 07:51 AM.
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