Laying-out a planetary gear set. How to position the planetary gears at specific points around the central gear?

Asked by Lance Martin on 2018-08-13

    Just needing help with plotting 6 equidistant points around a circle. I get that I'd use the angle tool, but the only reference to it I can find is that there are two types; the geographic and mathematician. So for my specific question, "Where is the angle tool, and how is it used?"
    My specific design dilemma? I am attempting to lay-out a planetary gear set where the planet gears will mate directly with and attach into a motor-mount's bolt-hole pattern.
    I am brand new to this and am looking at an uphill fight. I'm telling you, any help at all would be, highly, appreciated!

Question information

English Edit question
Inkscape Edit question
No assignee Edit question
Solved by:
Last query:
Last reply:
TylerDurden (8thrule) said : #1

Here's how I might do it:

Make a hexagon with the polygon/star tool, the corners being at the proposed planet centers
Snap the planets to the corners with object-center snapping
Convert the hexagon to a path object
Use node-edit mode to select all six corner nodes and convert them to smooth.


Best TylerDurden (8thrule) said : #2


And/or delete the hexagon converted to circle.


Lance Martin (thelanceman) said : #3

Thank you Tyler,
   During the time that passed between your answer and, this, my reply, I was messing around & am glad to say that I am now familiar with the centering tool! Soooo... armed with your explanation of using a hexagon, which is genius by the way, I have an understandable path to follow. At the moment though, I need to get about 45 min of sleep before work. But know this.... I'm chomping at the bit to try your idea.
Thanks for providing a great example, which I'm hoping will provide an ignition source in getting my brain to kick-start?!?
Much in your debt,
Lance Martin