please read this thoroughly
Thank you, and my only request
First off, thank you for your support of Project Cedrus. This has been a labor of love and I can assure you that a lot of thought, design time, and money has gone into every decision that has been made. That being said, I am still learning and I hope the mast is ever improving. Please read these recommendations and instructions throughouly, and do not hesitate to contact me with any questions or concerns regarding your mast assembly. I simply cannot keep up with all developments in the industry… new fuselages, wings, boards… which may warrant necassary design changes or clarifications to the use of adapters. Project Cedrus was designed to be robust and durable, but incorrect screws, fasteners, or inadequate cleaning can cause permanent damage to the product.
Each mast was carefully assembled and finished by hand in the town of Warren, Oregon. As with any handmade product, there will be slight differences and/or flaws in the appearance. However, all components and mast assembly follow strict manufacturing procedures and are individually serialized for configuration control. We hope you recognize the uniqueness of each foil, and appreciate your understanding as we continue to refine the manufacturing and assembly process. My packaging material is all used, and while I have a great appreciation for packaging design and the un-boxing process, with this project I am making every effort to reduce the environmental footprint. Re-using cardboard boxes, bubble wrap, and filler material is an easy way for me to do so.
Care & Best Practices
Project Cedrus was designed to last a lifetime. However, the marine environment is incredibly tough on equipment and it is critical that the mast is regularly rinsed and dis-assembled to prevent corrosion and wear. The main threaded inserts at the top and bottom of the mast are fitted with stainless steel helicoils to prevent siezing and ensure ultimate compatibility with future products. The aluminum adapters and mount plates will be more prone to wear and corrosion, so for extended periods of non-use it is highly recommended that they are removed, rinsed, and stored off the mast in a clean, dry environment. Those lucky enough to live on the water and foil regularly need not dis-assemble and rinse every day, but I do reccomend weekly cleanings in the interest of caution. Galvanic corrosion occurs between dissimiliar materials, and is accelerated by the salty environment and heat. Project Cedrus contains a lot of mixed materials, including aluminum, stainless steel, carbon fiber, and benign thermoplastics. As mentioned on the site, the aluminum inserts undergo an extensive anodizing and priming process to prevent galvanic corrosion within the mast, but this same protection cannot exist outside the mast.
In the interest of safety, Project Cedrus employs the first non-structural leading and trailing edge components fabricated from flexible PVC. On impact, the material should deform elastically and not chip, crack, or bend like carbon or aluminum. As a thermoplastic, this material should not be deformed under high temperatures, even those achieved in a hot car, to prevent permanent warping.
Loctite & Grease
While the stainless steel helicoils increase the life of Project Cedrus, the slippery interface can also result in the loosening of fasteners. There have been occasional reports of the main board attachment brackets becoming loose after initial rides, which can result in bent screws. Because the stiffness of this joint is critical to the performance of the mast, I recommend Loctite 242 (blue) or Teflon tape on the top fasteners to prevent them from backing out. This has solved 99% of bent screw problems. At the other end, loads are much lower and I actually recommend grease to reduce effects of corrosion between all the various adapters and fuselages.
Four Hole Adapter Instructions
Adapters for Lift, Moses, and MFC for example employ the “four hole” design. The intent of these adapters is very straightforward, they are screwed into both threaded inserts within Project Cedrus using counterbored fasteners. The helicoils in Cedrus have about 20mm of thread engagement, which is more than adequate, yet shorter than a lot of industry standards. Ensure that the screws you are using have 15-20mm of grip length beyond the adapter, and are not too long to bottom out into the mast. The adapter provides a robust interface for the stock fasteners included with your existing fuselage to anchor. However, in some cases your existing hardware may be too long due to thread depths of the adapter. To verify proper fastener lengths, test them with the adapter not assembled to the mast and ensure a tight fit between the fuselage and adapter and that screws are not proud of top adapter surface which would damage mast.
Three Hole Adapter Instructions
To minimize wing offset and adapter size, “three hole” adapters act as part shim, part mast. Examples of three hole adapter designs include Liquid Force, CloudIX, Slingshot Zero Offset, Cabrinha, and the Zeeko. Instead of screwing to the mast in two places, there is only one counterbored hole for attachment to the mast. Without the fuselage attached, the adapter will pivot about this counterbored hole. The adapter then has a clearance hole at the location of the other Cedrus threaded hole, to provide pass through for a long fuselage attachment screw connecting your stock fuselage directly to Project Cedrus, using the adapter as a shim. The other threaded hole in the adapter which does not line up with either of the two holes in Cedrus becomes the other anchor point for your fuselage. It is absolutely critical that the fastener used in this hole is not too long or too short. Too long, and the screw will bear against the mast and actually push the adapter off and potentially damage the structure. Too short, and you will not have enough enagement for your fuselage. Again, please check fastener lengths BEFORE the adapter is fastened to the mast to ensure a tight fit and adequate joint strength. If something doesn’t seem right, it probably isn’t, so please contact me with any questions or concerns. I recommend sourcing stainless steel fasteners from http://www.mcmaster.com/screws.
2 Year Warranty
Project Cedrus underwent over a year of product testing during the two years of detailed design, analysis, and fabrication. We are now in the 3rd season of the production version with no structural failures to date. To the best of my technical knowledge and experience, only the best materials, adhesives, and processes are used throughout the production process, and at the expense of any profitability. That being said, we continue to learn and push boundaries in a quest for constant improvement and optimization of performance, cost, durability, and manufacturability. In the event of any structural failure under normally expected use, I will repair or replace your mast. Hitting submerged objects is not a design load case under normally expected use, and I hope the failure mode, if any, is benign. I have repaired a number of foils due to impact, and tried to design Project Cedrus for repairability. However, designing for full-speed impact would have resulted in an excessively heavy and expensive product. This all being said, I’m happy to report that a test run at about 15kts directly into the Hood River sandbar left no damage to the mast.
Detailed information is given above regarding the use of adapters. Improper use or fastener selection will void any warranty, so please contact me with any questions or concerns prior to using your mast with adapters.
Repair & Refinish
The architecture of Project Cedrus facilitates easy repair and refinishing work. Edges can be removed and replaced, and the mast can be sanded and clear coated for improved hydrodynamics. If you have a 1st generation mast and want updated graphics, or simply want a refresh with the new satin finish, message me below for a cost effective repair or refinish quote.