Hi I am looking to get three of these made up. https://www.thingiverse.com/thing:4...GB2dIQDIYUUzKbbKVAALSvc8-zJ_Dgp1XyJSRWablAYCA I don't own a 3D printer. Could anyone recommend a service and which type of material to use if exhausting hot air. Thanks.
Try searching for a "Makerspace" in your area. Alternatively, some schools & universities have 3D printers.
For something similar (but smaller), I did some research on this in April and the best value option I could find once taking into account minimum order costs etc. was RENND (https://www.rennd.com), and I printed with rABS I didn't try to haggle on eBay though, you might get better there (and for sure, cheaper if you can access the kit directly). Given I was spending <£20 including shipping I couldn't really be arsed with all that.
I see RMC and The Retro Future advertising PCBWay a lot on their youtube channels. Might be one to check out.
If you want good quality, avoid FDM. I use the SLS service at weerg.com - it looks super cool and is reasonable priced.