rynhardt wrote: ↑
Tue Apr 03, 2018 3:07 pm
I've made a time lapse movie of my latest build and the infusion process we use.
As you'll see the prep work takes about 80% of the time, the infusion 10% and the final finishing another 10%.
I only decided to do this after I finished the core, which would have added another hour to the start of it.
The 6 minute video represents about 7 hours of actual time.
Hope you find it useful!
some small suggestions.
I would consider for the next shot to keep the level of your resin below the mold. You can put it on the ground. Hard to see in the timelapse, it looks like the end of your flow medium is also the end of the core. Better is to cut the flow medium back, two fingers wide, follow exactly the outline of the blank. That prevents the resin from overshooting, means that the "above" resin is rushing faster then the "below" resin. Should this happen you have white marks on the bottom surface.
Both actions reduce the flow speed as soon as the end of the flow medium has been reached
It is not clear what tube you use on the "sucking" side, the one pulling the vakuum. Might be MIT tube. In any case you have to take care that the tube gets contact to the fibre, in no case to the flow medium. I use toilet paper, folded one time around the tube and fixed with tape on the hole foil. On a 135 TT 5 like this are enough.
Avoid mixing the epoxy with a drill. The air in the resin is not very helpfull. I prepared my resin upfront. 2x500gr + hardner, stored in orange juice tetra bricks. Mix one half slowly by hand, start infusion. The start of the story will be very fast, but then things move slowly. In case you should get in trouble, you can either reduduce the flow speed with a plastic clam or cut it completly till you have mixed the second half.
I hope you found some usefull information
By the way, that was my last project.