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SlowBarless's blog
Posted by SlowBarless | Feb 16, 2014 @ 06:16 AM | 2,371 Views
Took these photos a little while ago and thought I would share. They show a range of carbon fabrics of varying weights and weave types. Each photo shows the surface layer of a laminate in a fully cured state.

What was surprising to me was the amount of very small air bubbles and voids trapped within the resin. It should be noted that all the parts look absolutely perfect with the naked eye, each one of a very high gloss. But under the right light and right magnification all the air bubbles become very visible.

The photos are close ups of a range of parts, including helicopter blades, high performance pylon racing wings and flat composite panels....Continue Reading
Posted by SlowBarless | Jan 01, 2014 @ 08:07 AM | 2,049 Views
So for a while now I have been wanting to try vacuum infusion but it has been cost prohibitive. For a long time I have been limited to hand lay parts utilizing closed shell molds. After venturing into some basic RTM work I began to see the real advantages of injecting resin into a dry laminate utilizing some sort of pressure differential. This Christmas I was lucky enough to receive a very nice vacuum system perfect for infusion (Thanks Santa )

My first panel measured about 500x1200mm. It featured a 6mm core and a layer of 600g biaxial glass either side. The panel infused perfectly except for a small amount of dry fibers left at the end of the panel. I adjusted my infusion strategy and after some additional research decided to try again with a panel of the same size utilizing a combination of glass, PVC core and carbon.

Here are the results
note the panel has already been cut to its finished shape.

...Continue Reading
Posted by SlowBarless | Nov 01, 2013 @ 09:54 PM | 2,097 Views
I spent some time over the past couple days working on some ideas for a folding spinner designed for high performance F5D/B models. I'm not sure if I will actually make these but it was fun drawing them. I'm fairly happy with how they came out. Although they are just a first draft and need some reworking.

My main design goal for this particular spinner is simply to design something that doesn't explode at high rpm (among other things)

Just dreaming though, maybe once I'm 100% happy with the design I'll get some cnc work done.