Friend whose a sign writer had some spare 6mm thick aluminium so he cut a piece down for me . It's a great bed but it is heavy (just under 1kg, same as stock bed with glass) so printing with fast movements can vibrate the whole printer but I can live with that. Also still need a silicone heatpad for it but had to swap out the PSU for a 500w Meanwell one first (heatpads are 300w). On a side note, got an MKS Gen L with 2208 drivers coming from Banggood also got a food dehydrator and 7.5kg of silica gel bead things coming so I can dry the filament / keep it dry for longer. Wont be printing at all this week though because its raining .