[mental4astro (Alexander)]

This will only get you to about 90% collimated until you get a proper collimation EP. Take your time, it's a little tricky but not difficult. You will make something resembling the 'Anatomy' diagram.

You will need some fine wire, masking tape, and be able to make a tiny hole in the canister's base, and piece of aluminium foil jammed into the canister set roughly at 45deg, and a torch.

*Make a tiny hole, about 2 or 3mm diameter in the base of the canister.

*cut out an opening in the side of the canister near the base about 2/3 the diameter of the canister

*Pack the foil into the canister and set to the rough 45deg to the big opening so that light shone into the canister via the large hole will reflect out the main opening.

*Pierce the foil so that you can see the cross hairs through the tiny hole in the base.

*Make a set of cross-hairs with the fine wire across the opening of the canister and fix with the tape. The tape will also add some resistance to the cylinder. You may need to trim off the lip of the opening as this end needs to be fit into the focuser (1.25")

*Fit the canister into the focuser upto the but not covering the hole in the side and have a look into the hole.

*Check that the secondary is properly centered in relation to the "eyepiece". The spot on the primary should intersect with the eyepiece cross-hairs, figs 2 & 3.

*Shine a torch into the side hole. The idea here is that the cross hairs will be sillueted against the foil, making them visible in the primary. As long as you can see them it's OK. This is called the Annulus.

*With the secondary properly centered, now adjust the primary until the Annulus is centered with the cross-hairs fig. 4.

Good luck.