2.4 Bedfan Backplates

[Ferdi360]

Which mods are added by this PR?

2.4 Bedfan Backplates

How was it tested?

350 version by myself. Fits nicely. Spacing of the bed extrusions is the same for other sizes.

Any background context you want to provide?

Backplates for your Voron 2.4 that block hot air out of your bedfans from blowing onto your ACM panels to (slightly) improve airflow and temps. Also a nice way to showoff Voron branding and the serial of your printer. I noticed a hotspot on the lower third of the ACM backpanel, which now gets more equally warm. Also the top panel gets warmer sooner, which indicated improved flow for me.

Screenshots (if appropriate)

⚠️⚠️PLEASE READ AND COMPLETE THE CHECKLIST BELOW⚠️⚠️

• [ x] I have read the rules available here and my mod adheres to these rules.
• [ x] This mod was created by myself and I agree to publish it under the repository license

[chirpy2605]

Could you please upload a .metadata.yml file as explained in the submission docs here: https://github.com/VoronDesign/VoronUsers/wiki/How-to-build-a-metadata.yml-file

This is a required file so that PR can be merged correctly.