Gear rack drive for linear reciprocating motion 1

Input: orange worm.
Output: pink slide to which the rack is attached, performing linear reciprocating motion.
The rack is in merge in turn with the jade and yellow gears of fan shape.
Number of teeth of green and beige gears: 30
For the fan shaped gears (yellow and jade):
- Number of teeth (teeth-completed): 26
- Number of cut-off teeth: 16
- Number of remained teeth: 10
Gear module: 4 mm
Stroke length of the rack: 125.6 mm
Note: head of the end tooth of the fan-shaped gear is cut off. That ensures an easy merging between gears and rack of the selected rotary direction.
A spool winder that uses this drive:
   • 3D Printed Spool Winder  

STEP files of this video:
https://www.mediafire.com/file/has7ss...
Inventor files of this video:
https://www.mediafire.com/file/puei94...