Sunday, December 19, 2010
Jari has installed RC-components and built rigs for a Mad Max IOM. Check out the pictures: http://rcyachttech.webs.com/madmaxiomproject.htm
Some IOM bulbs from the new moulds.
Jari made these new IOM bulb-moulds over the weekend. CNC-milled in aluminium. Circular cross-section with a NACA0010-34 profile (similar to my 2005 design), length ca 360mm. Designed with a central stiffening brass rod. Check out rcyachttech.webs.com for more cnc-machined moulds and parts. See also casting notes from 2003.
Saturday, October 16, 2010
Jari Immanen now has his own website at http://rcyachttech.webs.com/ Check out the video:
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Saturday, August 21, 2010
The new high-torque winch servo is 44x22mm instead of the standard 40x20mm, so we made a new radio-plate for it today. The new plate has a bigger cut-out for the new servo, and is slightly wider. The boat will sail again next weekend so we will hear how the new servo works then.
CNC-turned from stainless steel, this is a 400mm long and 38mm diameter IOM keel bulb. A slot will be milled in the middle for the keel fin. Unlike a lead-bulb this one will require no surface filler/sanding/painting. But the density (compared to water) of stainless steel is 8 at most, while lead bulbs can be [...]
Saturday, December 26, 2009
We've moulded the first PIKANTO hull! This is a bit of a prototype since it's some time since Jari or myself moulded a boat, and also because these are brand new moulds and we have never made a boat in one-go like this before: closed mould with the hull, deck, mast/finbox, and ruddertube all attached [...]
Monday, December 21, 2009
The PIKANTO moulds were polished first with "Oskar’s buffing and polishing compund M-50" and then with "Norpol Rubbing R-10", both from Terpol (www.terpol.fi) in Turku.
Saturday, December 19, 2009
After sanding with 1200-grit and a 10-15um particle-size fine paper it is time for polishing. We have two grades of polishing-compound. These pics show the coarse type which is polished with a spinning soft disk on a power-drill. After polishing follows release agents: first Frekote and then wax. It's still possible we will mould a [...]
Sunday, December 13, 2009
Jari cnc-milled rudder moulds for the Pikanto IOM this weekend. The design is similar to the Sails ETC rudder, but slightly larger and with a NACA 0006 airfoil profile, and a slot for a 4mm rudder stock.