This is a collimation cap for use in Dobsonian reflector telescopes with a 1″ focuser. If you have a larger focuser, this can be used with an adapter for 1″ eyepieces. This cap is made of all plastic and features a plastic disk that has a mirror like finish. This is much safer to use than other caps that may contain a metal washer. Using plastic, there is no threat of a metal washer falling out and cracking your mirrors! This cap is extra deep to ensure it engages well with the focuser and ensures a much more precise alignment than a shorter cap can provide.
***DISCLAIMER***
– These are printed in black PETG plastic. This plastic has natural UV resistance so the color won’t fade over time and won’t get brittle. This plastic can start to get soft at temperatures of 190*F. Even in extreme environments this shouldn’t be an issue. PETG parts have been used on vehicles for long periods of time without ill effects.
– This is a 3D printed part, this means not all parts will appear or fit exactly the same. We do not accept returns due to it being made to order, however If you have an issue with your part, please contact me and we can work out the issue together.
– If you break it due to not following instructions, over-tightening screws, or through use, you can fix it with some super glue or you can message me to purchase a replacement part.
– This is a made to order part. We print and ship as soon as possible, please allow ample time for me to process and ship.
– Shipping damage must be reported within 3 days of receiving the item. After this time a return/refund will not be accepted nor will a replacement part be sent out due to shipping damage.
