Fully printable TRS Drawbot for SG90 / MG90

This is fully printable version of the TRS Drawbot designed specifically forSG90/ MG90 servos. I started out with the official alu design and S3003 servos but thought it would be more fun to create a 3D printable version, so I haven't finished the alu version yet. After some revisions it was good enough to share here. I've designed it for the 'official' 4 inch arm size, so it is out of the box compatible with the software from the original TRS Drawbot (google it).

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