I have been having some problems with the PTFE tubes getting stuck behind my printer and being snagged shifting the whole printer around during a print.
I have created a simple twist in modular attachment for the top cover so that you can design your own attachment's for different purposes or use the one's I have created, they can be found on my page.
I have added the blank screw on the raw downloads sections that you can use in your modelling application to design something different to screw in.