kac Posted December 29, 2017 Share Posted December 29, 2017 I am making a product that requires a planetary gear system and having trouble with making the negative gear for the outer rim because the teeth would be backwards. Is there any suggestions on a work around for this? Thanks Link to comment Share on other sites More sharing options...
Andrew West Posted December 29, 2017 Share Posted December 29, 2017 Create a disc the exact size of the outer ring. Then create a gear that would fit inside that disc. Use Boolean difference to subtract the gear from the disc and you now have a negative ring gear. Link to comment Share on other sites More sharing options...
setz Posted December 29, 2017 Share Posted December 29, 2017 This is a good free site for creating regular external, rack and pinion, and internal gear combinations. I usually trace with 3 point arcs to get smooth gears because these export as faceted. http://www.hessmer.org/gears/InvoluteSpurGearBuilder.html And a site for multiple standard gears (more than two linked gears are possible in a single export): http://geargenerator.com/#200,200,100,6,1,0,0,4,1,8,2,4,27,-90,0,0,16,4,4,27,-60,1,1,12,1,12,20,-60,2,0,60,5,12,20,0,0,0,2,-563 Link to comment Share on other sites More sharing options...
kac Posted December 29, 2017 Author Share Posted December 29, 2017 I did subtract a gear from a disc but the tooth structure for an internal vrs external gear are different so they will never mesh. Printed a set out and they don't work no matter what. Thanks sets ill check that site out. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.