Cycloïdal reduction drive: the math

The reduction

 I need an aproximate 1/300 reduction.
 This is Physically impossible so i make 2 1/17 reductions stacked on top of each other because:
 17 x 17 = 286

R = Reduction
P = number of "theeth" on the ring
U = number of teeth on the disk
        P - U          18 - 17            1
R = ---------  => ----------  => -----
           P                 17              17 

The outer Diameter

I want a pin diameter of 6 and a gap of 6 between each pin.
so the Perimeter is 18 x (6 + 6) = 216
Perimeter = diameter x pi => diameter = perimeter / pi



216 / 3.14159 = 58.75

Deutsch Part 1 ein Hypercycloidales Getriebe für ein medizinisches exoskelett designen

Deutsch Part 1 ein Hypercycloidales Getriebe für ein medizinisches exoskelett designen Ein getriebe für ein medizinisches Exoskelett designen Edit: Das getriebe Reduziert so wie es gezeigt wurde. Englische version: https://youtu.be/3ZTbdJxDYgo Support The Iron Mechanic on Patreon: http://ift.tt/2imnAFQ ► BLOG: http://ift.tt/2iqrfVz ► Twitter: https://twitter.com/Iron_Mechanic ► G+: https://goo.gl/JvMNwB ► Instagram: theironmechanic Everyone is responsible for his own safety. I reject all liability for damages and injuries.

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Part 2 - Hypercyloidal Reduction for medical exo Design Part 2 of designing a Cycloïdal reduction for a medical exoskeleton. Sorry for the delay I had some issues with my video editing software. The post on my website is coming next week, Support The Iron Mechanic on Patreon: http://ift.tt/2imnAFQ ► BLOG: http://ift.tt/2iqrfVz ► Twitter: https://twitter.com/Iron_Mechanic ► G+: https://goo.gl/JvMNwB ► Instagram: theironmechanic Everyone is responsible for his own safety. I reject all liability for damages and injuries.