Because I use the spool cages from @RaQic I needed something to keep the PTFE away from the printer but I couldn't find anything.
As you can see, the first solution wasn't exactly brilliant, but it was okay for a while.
This space bar is not a grandiose design, but it works and I think that's what it's all about.
It's three separate parts so you can adjust them as you see fit and please share the result.
The author marked this model as their own original creation.