FreeCAD Tutorial - Animation by Assembly4, Scotch-Yoke with one Dwell (Assembly 4)

FreeCAD Tutorial - Animation by Assembly4, Scotch-Yoke with one Dwell (Assembly 4)

[@DerrickNdege-s9l]

good job , thank you
and please share the link to download the file

[@KK_CAD]

Thank you for watching. Sorry, I didn't upload the FreeCAD file to the internet.

[@athletics24-7]

@@KK_CAD its okay but i'd have loved if you uploaded the file

[@bernardchadebec8114]

Beautiful . I like your combinaison of Arc and Line. But I have a problem. My yoke doesn't follow the pin of disk between 330° and 29°. I don't understand. I think I followed the video. Do you have any idea?👋

[@KK_CAD]

Thank you!
Possible problem could be the conditional expression. Small typing error may cause FreeCAD to skip part of the expression and the motion is not correct. Check the conditional expression for 330° and 29°. You can test it within certain range so it is easier to find out the problem. Run it from ' 0 to 30° ' and ' 330 to 360° '. Also test individual conditional expression, say the expression for 0 to 30° / 330 to 360°. Hope this helps.

[@bernardchadebec8114]

@@KK_CAD I put another condition but not work. Sketches Arc and Line are goods. My formula
Variables.SisAngle > 360 ? .Constraints.XArc : (Variables.SisAngle > 330.1 ? .Constraints.XArc : (Variables.SisAngle > 209.9 ? .Constraints.XLine : (Variables.SisAngle > 150.1 ? .Constraints.XArc : (Variables.SisAngle > 29.9 ? .Constraints.XLine : (Variables.SisAngle > 0 ? .Constraints.XArc : .Constraints.XArc)))))

[@KK_CAD]

@@bernardchadebec8114 You have 6 conditions but 2 are not necessary. If the range is 0-360, SisAngle won't greater than 360. Also SisAngle is always greater than 0. So the condition " SisAngle > 0? " is not necessary. However, they are not wrong and this Condition Expression is good. I test it and it works. Test the animation with the sketch only and see if it works or not. If you don't mind sending me the file, I will take a look at it.