ColorFabb Spool Holder for CEL Robox (improved again)

Some very small tweaks to this spool holder.

1. grooves to stop pins getting squished.
2. taper to help the spring clamps guide in smoothly


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Dont forget to drop past:
https://www.rt-rc.com
https://www.youtube.com/channel/UCpUT4ZU-WaG1neZn9IHbvUg