How to motorize a cheap Chinese bead roller

my cheap bead roller is in its final form!
Here are the parts I used to improve this tool.
Power supply: amzn.to/3j2OQIQ
speed controller: amzn.to/39B79St
Enclosure: amzn.to/3qivYvb
Bead roller: amzn.to/3afpqnu