FormLabs Form 4 Resin Printer is used to make mold prototype as well as final production molds.
Resins of choice are:
Gray Resin V4 for prototypes (Buy Grey Resin | Formlabs)
Ridgid 10K for production molds (Rigid 10K Resin | Formlabs)
Bambu Labs X1 Carbon is used for all other smaller jobs
Filament of choice is Bambu Labs PETG Green
The MR1 mill – details to follow
Fiberglast
I have used Fiberglast products for 10 years and they provide amazing customer service and products.
Carbon Fiber 3K Twill 2×2 (weight)
System 4500 Infusion Epoxy combined with the 70min Cure hardener.
I find that the working time of this combination will well beyond 70mins and that gives a lot of flexibility with mold processing / where the epoxy can spend time in the vacuum chamber to remove bubbles (multiple cycles) as well as removing air from the carbon two/twill mold layup.
Easy Composites UK
Chopped carbon / carbon tow comes from Easy Composites – since they have a ‘long fiber tow’
Virgin Chopped Carbon Fibre Tow (Forged Carbon) 12mm – Easy Composites
Release Agents
The best release agent there is: RW4 Spray Wax Release Agent 400ml – Easy Composites from Easy Composites UK. NOTE: expensive international hazard shipping rates.
Good alternatives: (both found on Amazon)
Mann Release Technologies Ease Release 200
Smooth-On Universal™ Mold Release Spray