Asoor Posted July 31, 2021 Share Posted July 31, 2021 Hey everyone, I'm planning on building a dob and I have a list of all the materials I need except for the bearings to rotate the telescope horizontally, what should I use? Thanks in advance. Link to comment Share on other sites More sharing options...
johninderby Posted July 31, 2021 Share Posted July 31, 2021 (edited) Good info here on the subject. https://stellafane.org/tm/dob/mount/altbearings.html Large alt bearings work much better than the small ones found on many dobs. Here’s my Bresser dob that has nice big bearings. Edited July 31, 2021 by johninderby Link to comment Share on other sites More sharing options...
Asoor Posted July 31, 2021 Author Share Posted July 31, 2021 12 minutes ago, johninderby said: Good info here on the subject. https://stellafane.org/tm/dob/mount/altbearings.html Large alt bearings work much better than the small ones found on many dobs. Here’s my Bresser dob that has nice big bearings. Thanks a lot for the help but i meant the ones at the bottom of the mount, the ones that rotate the scope side to side. Link to comment Share on other sites More sharing options...
johninderby Posted July 31, 2021 Share Posted July 31, 2021 Ah OK, then this will be more usefull. https://stellafane.org/tm/dob/index.html Link to comment Share on other sites More sharing options...
Asoor Posted July 31, 2021 Author Share Posted July 31, 2021 5 hours ago, johninderby said: Ah OK, then this will be more usefull. https://stellafane.org/tm/dob/index.html Thanks a lot, appreciate it. Link to comment Share on other sites More sharing options...
Chaz2b Posted August 5, 2021 Share Posted August 5, 2021 I’m currently building up the materials for a home made dob base, and for the bottom bearing I’m using a 10” lazy Susan, very cheap on eBay, with Teflon pads on the altitude. chaz Link to comment Share on other sites More sharing options...
johninderby Posted August 5, 2021 Share Posted August 5, 2021 Don’t forget when using a lazy susan bearing you will need to add something to add some drag or it will just spin round and be unusable. Felt pads or something similar will do. Link to comment Share on other sites More sharing options...
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