User:Kyo
Hey Kyo!Saw you question regarding extrusions on Kludgineer talk page. Any 20x20mm aluminium extrusions will do just fine! :)
If you have any questions general or not, feel free to ask in Talk:MendelMax and I or anyone else will gladly help you out or point you in the right direction!
IRC is also a excellent resource!
/Danielpublic.