Sunday, December 28, 2014

GPS Speed Runs

43 mph, 4 miles out in Pamlico Sound. Rain squalls and wind off Avon, NC.

Need for Speed from Dean Withrow on Vimeo.

Tuesday, October 21, 2014

Paddle Test on Cotuit bay Cape Cod, MA

Trying to find the perfect paddle length after a 6.5 mile cruise around the bays of Cotuit.

Cotuit Bay SUP paddle test from Dean Withrow on Vimeo.

Bonaire Snorkeling in Lac Bay

Under our feet while windsurfing in Lac Bay, Bonaire.

Bonaire Bliss 2014 from Dean Withrow on Vimeo.

Westport River SUP (test run)

Film of AJ training for his SUP race season.

Westport River SUPin' from Dean Withrow on Vimeo.

Father's Day Surf Session

Father's Day surf session Moody Beach, ME from Dean Withrow on Vimeo.

Frisco Disco 2014

Discovered a gem of a Par 3 Disc Golf course in Frisco, NC while windsurfing in Hatteras...

Windsurfing in Cape Hatteras, NC

Yet another trip to the Outer Banks for some fun in the sun.

OBX Winds 2014 (Windsurfing the Outer Banks) from Dean Withrow on Vimeo.

Sunday River Escape

Met an old friend from college for a "Blue-Bird" ski day on Sunday River in Maine.

Sunday River March 2014 from Dean Withrow on Vimeo.

Sunday, January 19, 2014

Winter Blues

How to kill a winter
Ah, New England... it's "like a box of chocolates, you never know what you'll get". Well, this year, I've made sure there won't be: deep snow, large storms or clean ice. It's guaranteed since I made the mistake of picking up a snow blower, buying a generator, building it a shed and then designing and fabricating two new ice-boards. That should do it. This winter will now, certainly be another mild one here in New England.

Iceboarding
There is a group of ice junkies here in New England, who can't seem to get enough of the smooth stuff. We travel in search of any clean plate when the wind is blowing. We're just a bunch of friends who gather with a variety of toys designed to make the most the conditions. Every year, these familiar faces show up with a variety of craft... custom made ice-boards (with windsurfing rigs), kite-wings, kites, skates, etc...  We all live for this.

Not this year. Once again, we've been snake bit. A very promising cold start led to an early snow storm and a white Christmas. It's all gone downhill since. Two weeks (and counting), of warm wet weather. The lakes are a mess and the generator, snow-blower and ice-boards stand idle. C'est la vie, hopefully, there's still time. Seems like a great excuse to start another project.

"Ice-o-bar"
Having some free time to kill around X-mas, I decided to build a new ice-board. I had enough materials left lying around to fabricate one, so why not. I changed the geometry and weight a bit from my last board, using a thinner marine plywood.
Marine plywood deck, red oak stringer

Forcing a deck camber with an epoxied oak stringer

I then recessed a modified mast track using a thickened epoxy. While most use only 1 or 2 tiny sails while ice-boarding, I will carry anything from 6.3 meters to 3.7 meters. The adjustable mast track is a must for me. Next was a layer of pigmented epoxy, black on top and blue on the bottom.

 Routed out and dropped in Chinook mast track

Full coat of pigmented black epoxy

Deck traction is always a concern on ice-boards. Snowy boots need a variety of methods to keep them attached to the board. It starts with sand embedded into a layer of epoxy. Next, comes perforated stainless traction pads that I cut from a sheet and bent appropriately. After the sand and metal pads, I add 100 inches of fan belt to the perimeter of the board. This prevents my huge feet from sliding off the edges. The belt gives me a sense of security in some pretty hairy and dynamic conditions. When I'm really "wound", I use (removable) DaKine footstraps.

Stainless traction pads

Sand textured deck with fan belt edging.

The thinner lighter deck, in turn, provided a new set of problems to tackle. Torque (board twist) reared it's ugly head. I tackled that with uni-direction carbon fiber and carbon twill on the bottom. On the recommendations of several buddies who know a lot more about carbon than I... thanks Rob, Alex, Rick and Jeff!!!

Carbon lay-ups covered with peel ply

The runners were made with 440C stainless steel bar stock, then shaped, drilled, tapped and then hardened to 57 Rockwell (thanks: S&P Heat Treating Inc). That's when the real job starts... My new (used/craigslist) belt sander became my best friend over Christmas. Hours were spent grinding, shaping, and sharpening all 12 of my blades. They needed a new radius and a razor's edge.

Grizzly belt sander set at 45*

Stainless 440C runners

Trucks for the new board started with a set of Veloz downhill skateboard trucks that I had laying around. Everything else had to be fabricated out of aluminum bar stock and stainless perforated sheets and all stainless steel hardware. This time around I tried adding a cosmetic touch by painting it with a transparent metallic paint coated with 4 layers of clear for protection. Yummm! My enthusiasm was short lived however... it chipped off too easily. Live and learn. I decided to strip them and try again, with powder coating.. (see below)

Out with the old (spray paint), in with the new...

"Ice-o-bar" is born

The Snowball Effect
As is so often the case, one project leads to another. I had a beautiful new board with a beautiful, but not so permanent paint job. I needed a solution and "powder coating" seemed like the only viable answer. Google led me to company that sells the "gun" for less than $80 and the powders for about $15 a pound. Now all I needed was a booth to contain the operation. PVC, sign plastic and duct tape was my answer. My dad (the king of "duck" tape) would be so proud of my thrifty solution:
 1" PVC pipe, sign blanks and white duct tape.

 Bath exhaust fan and surge protector added

Copper pipe (for ground) LED light & Eastwood powder coat gun

Paint without toxic fumes... who would have thunk it? All I needed was a small counter-top oven. Not wanting to pollute the one in the kitchen, I found a classic, (from the 60's?) on eBay.

My "Easy Bake Oven" test run

So... the particles of paint are positively charged and pushed from the gun at 8 psi. They are attracted to a negatively (grounded) part and statically "stick" to it. Until baked, the part can't be touched, as the powder will come right off. On the plus side, if you screw up, then brush it off and do it again in seconds. Once coated it needs to be baked on. Using a laser thermometer, I wait for the part to "wet out" at 400*, then bake for 10 to 15 minutes. The results were phenomenal and drove me headlong into my next project...

"El Diablo"
Having just finished one, just like Forrest Gump, I kept on working.
With new found skills and technology (and still no ice), I jumped right into my dream board. The last 1/3rd of my marine ply and leftover aluminum and resin, led me to buy some new trucks from the Ronin company. The fastest skateboard downhill racers on earth were using these trucks and I wanted to build a board around this new technology.


The same process used above, began again (with some subtle tweaks) leading to a somewhat flatter, lower, lighter, more nimble and downright gorgeous new speed machine. Here are some of the steps:

 Red and black carbon twill bottom

 Peel ply over the carbon lay-up.

 Stainless traction pads powder-coated candy red.

 Red Carbon Twill over crossed 6" uni-directional carbon tape.

Ronin powder coated front truck assembly


Using "Ronin red" and the El Diablo theme, this baby was built low and fast. All thoughts of twist and torque were negated by a layer of 6" uni-directional carbon tape set at 45 degrees and topped with a (color coordinated) red carbon twill. It all came together in a few days and resulted in one sweet looking machine.

It will break 55 knots...

My sleds are ready now. Only one thing missing.
Ice-o-bar and El Diablo

Chiquita
Last year's project "Chiquita" also got a makeover. 
Now labeled "The Golden Banana" by my wife Ami... I added some 6" carbon tape for twist control, then disassembled everything metal to ready it for the golden powder coat.
Cooling rack for Chiquita's golden parts

 Torque control for Chiquita

Going for Gold on Chiquita.

Cocoa is "ready to ride"

Chiquita looks ready.

El Diablo, ChiquitaIce-o-bar

If you want to see more (I'm amazed that you got this far) go to my online photo collection HEREJust add ice and about 30 knots of wind... soon please.