We’re currently in the beginning stages of planning our own ODRI 12dof build, with a focus on minimizing costs.
The main issue we’ve run into is that we can’t source the MicroDriver v2 boards–we’ve messaged BetaLayout and they estimate that this will be sorted out in a half year, but this doesn’t fit to our time-schedule at all (we would like to test motor control before the end of the year).
As an alternative, we think that a solution based on Tinymovr will do the trick; either using their motor controller with the standard 4004 motors or their bundle with a 5208 motor. It’s in stock and purchasable.
The problem is that this solution does not use the encoder kit from PWB Encoders GmbH, and as such, does not include the aluminum machined parts–and while we have the 3d printing capabilities, we don’t really have access to a machine shop and from what we’ve seen so far, having an external shop make them for us would be prohibitively expensive (like 80€ per piece).
So, some questions:
Can we purchase off-the-shelf aluminum parts from somewhere? Can we buy a normal AT3 pulley and then modify it?
Is there a way to get some MicroDriver boards?
Is it generally realistic to reduce the BOM per actuator to < 200€ for each motor/encoder/controller bundle?