Motorized Desktop Machine With Roller Chain

I saw the original model on Hackaday and decided to add my own motorized Usb-C spin on it! Only the chain links and the top cover are original, everything else has been slightly edited to fit the small dc motor i added. Electronic circuit consists of a switch, the Usb-C female port, motor and a 1N4007 diode for protection. I used this motor i had lying around: https://www.aliexpress.com/item/33006683152.html?spm=a2g0o.productlist.0.0.43252264Pzfx6Q&algo_pvid=a4c55098-a0ef-449c-bea3-2b6cae1bc197&algo_exp_id=a4c55098-a0ef-449c-bea3-2b6cae1bc197-22&pdp_ext_f=%7B%22sku_id%22%3A%2267099044954%22%7D&pdp_npi=2%40dis%21SGD%211.98%211.5%21%21%21%21%21%40210318c216720508485987922e8453%2167099044954%21sea&curPageLogUid=oqIwKDlOIOog Assembly is pretty self explanatory but here are some images to help. 📷 Image redacted — claim this model to add your own media Left (Axle) : Insert an M4 heat-set insert. Right (Bolt) : M4 screw 📷 Image redacted — claim this model to add your own media Sandwich Axle and Bolt between Sprocket and screw together. Then friction fit the assembly onto the motor. 📷 Image redacted — claim this model to add your own media 📷 Image redacted — claim this model to add your own media