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by fluidity
Tue Aug 13, 2019 9:37 am
Forum: Gear Builders
Topic: Building the tools to build the boards.
Replies: 7
Views: 734

Building the tools to build the boards.

Started a project a couple of months ago to build my own CNC machine to try building board moulds with CNC instead of my earlier methods. Getting most of my gear through aliexpress and steppersonline. At the moment it's looking like I have 120mm height on Z axis, 665mm width on Y axis and 1620mm on ...
by fluidity
Mon Aug 12, 2019 8:22 pm
Forum: Kitesurfing
Topic: Another UK Kitesurf Fatality
Replies: 22
Views: 3562

Re: Another UK Kitesurf Fatality

Sorry to hear too... We have very gusty local conditions which can be especially bad in some launch spots when wind is flowing disturbed around a nearby land mass. The general rule of thumb is to keep the kite at about 45 degrees when launching or landing- definitely not directly overhead. Keep a bi...
by fluidity
Fri Aug 09, 2019 11:47 pm
Forum: Kitesurfing
Topic: Introducing the Aluula Project - The Evolution of Light
Replies: 20
Views: 3077

Re: Introducing the Aluula Project - The Evolution of Light

and you can order any color as long it's black- why? please give us a choice of different colors We don't know much about the aluula material yet. All the strongest fibres I know are long chain carbon based. Pure carbon has alotropes of nanotubes, buckyballs, graphite, diamond etc. Carbon black is ...
by fluidity
Fri Aug 09, 2019 11:33 pm
Forum: Gear Builders
Topic: Polishing PVA release agent?
Replies: 2
Views: 324

Re: Polishing PVA release agent?

I think it's just as likely to wrinkle?
You could try diluting it more, also try adding a few drops of detergent to reduce the surface tension. Do it with a bit of spare resin and test surface on your next mix.
by fluidity
Fri Aug 09, 2019 11:30 pm
Forum: Gear Builders
Topic: 3d printed titanium inserts
Replies: 33
Views: 2169

Re: 3d printed titanium inserts

Hey plummet,
Last one looks good.
Are the joiners just to make it one physical part to reduce production cost? I'f they are meant to be structural I'd extend them slightly past the ends.
by fluidity
Sat Jul 06, 2019 1:38 am
Forum: Kitesurfing
Topic: Aluula ? New Revolutionary Material from Ocean Rodeo
Replies: 432
Views: 44460

Re: Aluula ? New Revolutionary Material from Ocean Rodeo

Changes for a material of sufficient strength but lighter: Easier launch, relaunch. Less tendency for the kite to want to move to either side of the wind window. Less tendency to dive. More reactive due to lower mass. Be good to hear a detailed review from somebody comparing the same kite design in ...
by fluidity
Mon Jul 01, 2019 12:05 pm
Forum: Gear Builders
Topic: An object in a fluid
Replies: 23
Views: 1680

Re: An object in a fluid

Ok, answering my own question: https://openfoam.org/ (the engine) https://sim-flow.com/ (the cockpit to drive it) Just ordered the first parts for a CNC table I'll build soon. Steppersonline for my stepper motors, drivers, interface board and water cooled spindlemotor. Robotdig for splined pulleys,...
by fluidity
Wed Jun 05, 2019 6:32 pm
Forum: Gear Builders
Topic: An object in a fluid
Replies: 23
Views: 1680

Re: An object in a fluid

Ok, answering my own question: https://openfoam.org/ (the engine) https://sim-flow.com/ (the cockpit to drive it) Just ordered the first parts for a CNC table I'll build soon. Steppersonline for my stepper motors, drivers, interface board and water cooled spindlemotor. Robotdig for splined pulleys, ...
by fluidity
Sun Jun 02, 2019 1:33 am
Forum: Gear Builders
Topic: The Boom! Board
Replies: 24
Views: 2644

Re: The Boom! Board

I've not found any local retailers selling a waterproof speaker MP3 player with micro SD card slot for the music.
The look on the face of a local windsurf shop assistant's face when I asked them if their new waterproof speaker had a micro SD card slot was priceless :baby:
by fluidity
Fri Nov 30, 2018 10:52 pm
Forum: Gear Builders
Topic: How to build a bar? Just the rod/pole item ~60cm. Anyone done it?
Replies: 232
Views: 41951

Re: How to build a bar? Just the rod/pole item ~60cm. Anyone done it?

Is impact resistance an issue. So far my opinion is that it is not Actually it can be. Carbon fibre alone will snap like glass and can cut hands up if over stressed. Blend it in with dynema, kevlar or innegra, especially on a sandwiched layer and it will likely still hang together. Also, the softer...

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