tlehnhaeuser Posted April 27, 2004 Share Posted April 27, 2004 We are trying to design a spiral cam track to move a part forward and backward using a simple "slide" mechanism. Since developing cams is not our strong suit, I though I would present this question to the IC community. Challenge: Move yellow part in "Z" direction 6mm max using the blue part as the slider in the "X" direction. The challenge is I ma trying to get the slider to move as minimal as possible due to size constrictions. I know I have to use a REMOVE Helix to develop track but not sure of the parameters needed to meet this requirement. Any feedback is appreciated. Thanks Tom Tom Lehn... Magnacad Design Inc. CamTrack.gif Quote Link to comment Share on other sites More sharing options...
Chris Lohman Posted May 6, 2004 Share Posted May 6, 2004 uh...I dunno. But hey, the image attachment worked this time. sry, hopefully someone else will know... Quote Link to comment Share on other sites More sharing options...
tlehnhaeuser Posted May 7, 2004 Author Share Posted May 7, 2004 Hi Chris, Yup, the image worked great, thanks. Eventually things sink in (ha ha) Tom Lehn... Magnacad Design Inc. Quote Link to comment Share on other sites More sharing options...
jholbert Posted May 27, 2004 Share Posted May 27, 2004 Tom it seems to me that using a slide might not work as is shown. have you given any consideration that ,as you have shown it, the cam is locked, as you move the slider there would not be any movement to the cam? The slider would just ride in the slot. how do you plan to give rotational force to your cam. maybe if you used a hollow thumb wheel.with an internal spline,over an external one on the cam. leaving you blue bar as is,solid. Quote Link to comment Share on other sites More sharing options...
tlehnhaeuser Posted May 27, 2004 Author Share Posted May 27, 2004 Thanks Jhol.... We actually took a differnt route much like you suggested. We create a thumb wheel which has two trapped ball bearings that rise in a groove on the beel. Tom Lehn... Magnacad Design Inc. wheel.GIF wheel.GIF wheel.GIF wheel.GIF Quote Link to comment Share on other sites More sharing options...
jholbert Posted May 27, 2004 Share Posted May 27, 2004 Tom Looks good Quote Link to comment Share on other sites More sharing options...
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