I was not suggesting buying the aliexpress one, I was just refering to the shape of that cover that I used to get a quote (€12!) from my local online plastics supplier.
For the concrete slab, here is an interesting post about vibration and isolation:
I read the article and was surprised at how little I understood the subject. “Do not put isolation pads/feet between the printer and the pavers.” That seems totally counterintuitive, but I get the point.
I finally pulled the trigger on a cut to order polycarbonate cover for the bottom of the printer. I’m really pleased for the €12 I got charged for it. I don’t have to worry anymore about anything getting underneath and caught by the belt although it never happened but a small peace of mind. While I was at it I have also made the top glass cover in smoked grey PC just in case I break mine which almost happened twice already
There’s nothing to cool here and it’s not airtight anyway. I can give you my dxf file which is what these suppliers need but I have to slightly adjust some dimensions first as I had to do a small trimming around the feet where it was too tight.
PS: For some reason, a link to a zip file does not work and opening a dxf in your browser gives unexpected result… Click on the link and in your browser address bar, replace .xyz by .zip and click enter, inside the zip is the dxf file (do not worry if you receive a warning for some reason but I can assure you the file is clean)
I’ve ordered from an online provider in France but this company seems to have locations in the UK, Belgium, Germany and the Netherlands (or is this just a front and everything ships from France I don’t know).
Otherwise, if you’re outside Europe, just google for “plastic cut to shape”, I’m sure you’ll find one or just find one locally in the yellow pages (if that still exist :)).