The Wind is Free!

Well I have finally got around to using the template I had laser cut to make a hub for the 1.5m blades.

The two hub disks are 12mm marine ply, both sides coated with glass woven mat and epoxy. There is a cut-out in the outer disk to allow access to the mounting nuts.



Holding this in my hands has made me realise a few things which need to change to support these blades in a Cape Town storm:

The 12mm shaft is too small - I have bought 20mm bar to use instead, with matching bearings
The 42mm pipe I use as a pole is too weak. I have bought some 50mm pipe to replace the 38mm pipe I used before for the mounting bracket

now this means i need to get some rotor disks cut with a larger centre hole for the larger bearings.

Watch this space!

PS: If a few people want blades of this size and order together, the manufacturer has said they are willing to make a special price.

Here is a rig to test mount the blades:

Bolting on the sandwich hub:

And up and running!

I never trusted the idea of a 12mm shaft from the beginning and therefor purchased pillow blocks that will take a 25mm shaft. Wouldn`t mind to get my hands on a set of those 1.5m blades...


NS: Can you recommend anyone up here in Gauteng that does laser cutting?

I have now had a bracket made with a 20mm shaft. It also has a larger round tube for the pole - 50mm. Don't know of a laser cutter up North, sorry.
Those blades were available for R8000 initially, but I think you may be able to get them a lot cheaper that. They perform really well... make Nico an offer and see what he says!

Thanx Windgat

Just one, obvious stupid, question: who is Nico and how do I get in touch with him?

Contact me using nicovanm(at)hotmail.com

Nico

Thank you, Nico

I`ll email you when I`m ready for the blades.
Still busy with the generator itself.

Regards

Gawie

Until the end of this year we are offering
a set of 3 blades for R3900 (incl VAT).

Please contact me or Windgat.

nicovanm (AT) hotmail (DOT) com

These are great blades at a good price - very powerful, and well made. I can recommend them!

Our business is closing down. All remaining 1.5m blades can be collected for free
In potchefstroom. I will wait a few days before taking them to the scrapyard.

You can contact me on 0790182747

Nico