eccentric

[webby1]

this is the build I am now working on.
It will use 10 N20 motors mounted in the frame with 10 10mm arms with bearings to drive the Sun gear.
I am setting it up so that I can drive 6 TT motors at the ring gear and am using a gear for the pin connection to drive the TT's at a 3:1 step up.

[webby1]

these 2 pics show that a single change in variable can have 2 different outcomes, nothing big but since this system that I am building works at a toggle joint, or a singularity, this shift should mean that the system can be designed to run with a little less mechanical gain to operate in a more stable environment.

They speak for themselves,, I thin anyway.

P.S.  they look the almost the same,, but are not.

[webby1]

big design error on my part,, trying to "improve" things I got rid of an important relationship,,,,
I will change that up and see what happens.

I have the 10 N20's all installed and wired up to a power rail and they all spin along together, so that part is done.

[webby1]

lost one N20 motor,, but I move on.
Changes and teaks to make things smoother.

Here is a pic of the mesh I can now maintain, this is with an offset of 180 degrees.

[webby1]

These are some data points I have collected during some shake down runs with my modified system.
I am not claiming anything other than I find the results interesting, they do not prove anything.
The no load runs were with the system complete and all parts moving.
The holding hands runs were with only the Sun gear installed.
The loaded runs were with an open TT motor using the 3:1 gear but the system has an initial step down of 5/6 then the 3:1 step up, or 2.5:1

Holding Hands
2V @ 0.41A to 0.47A
6V @ 0.58A to 0.65A

No load system run costs
2V @ 0.44A to 0.54A
5V @ 0.53A to 0.65A
6V @ 0.61A to 0.71A

Loaded system
2V @ 0.46A to 0.56A
6V @ 0.75A to 0.91A

Direct out
2V @ 0.58A to 0.68A
5V @ 0.59A to 0.72A
6V @ 0.59A to 0.72A

What I find interesting is that the 2V geared up RPM delivered to the TT motor is about the same RPM as the 5V direct out.

[webby1]

so I did a few runs loaded with a resistor across the motor and a little volt meter and diode bridge reading the voltage.  I have 2 100 ohm resistors in parallel for 50 ohms resistance.

using the 3:1 aka 2.5:1 gear
Input 3.5V @ 0.84A to 0.94A
output across 2 100 ohm resistors in parallel
0.52V to 0.63V

using the direct drive
input 7.5V @ 0.72A to 0.93A
output across 2 100 ohm resistors in parallel
0.54V to 0.84V

I turned up the input voltage to get close output voltages, the same motor with the electronics on it was used on both test points.