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Pacificmeister Electric Hydrofoil
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Build #1, Start April 2017
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Last Update March 29 2018
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PictureComponentSourceCostComments
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SSS 56104 500KV 6 pole brushless motorEbay$160.00Motor - the muscle
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Neugart PLE 40 5:1Ebay or Neugart Distributor$300.005:1 Gearbox to reduce speed and increase torque
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Parker PV40TN-007 In-Line Planetary Gearhead Amazon or Distributor$300.00Alternative to Neugart. 7:1 Gearbox (used on my first build)
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HobbyWing SeaKing V3 130A BL Motor ESCEbay$159.60Motor controller - the brain
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2x ZIPPY Flightmax 5000mAh 5S1P 40CHobbyking$105.02Good for first tests. Bigger batteries recommended for longer rides. I suggest 10Ah or more. Also 12S
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2x Tattu 22000mAh 6S 25C 22.2V Lipo Battery PackAmazon / or others$800.00Bigger batteries for more ride time
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FVT 8A Adjustable UBECEbay$16.99Deliveres an adjustable power source of 5V, 8V or 12V with inputs from 3S-12S. Used to power receiver and possibly a water pump for ESC cooling
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2x Oil-Resistant Shaft Seal Heavy Duty, Double-Lip, 5/16" ID, 3/4" OD - 5154T47McMasater$15.108mm Lip seal for motor shaft
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Thrust Needle Roller Bearing 10x24x4 Thrust Bearings
Amazon$6.50Takes the axial load from the pushing propeller off the gearbox. The PLE 40 only has regular ball bearings which are not for strong axial forces
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Aluminum Round Straight TubingAmazon$14.05Option for motor housing with optimal heat conductivity for direct ocean water cooling, fits close with 1mm gap around motor, TBD if/how to use - OD 60.325 ID 57.023
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Neiko 50444A O-Ring Assortment, Universal Metrc, 419-Piece SetAmazon$14.55O-Ring set in different sizes. Refer to the parker O-Ring handbook for details on sizing
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5Pcs Linear Motion Shaft 8mm X 100mmAmazon$9.49Motor shaft extension
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GT2B 2.4GHz 3-Channel TransmitterAmazon$29.03Simple remote, plenty of DIY custom case builds available in esk8 community - we need a waterproof case here
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Liquid Force Foil 2016Used$375.00Bought this one (incl. the foil fish board, but I don't ned that) used. Should be good for a start. I like this foil because the stall speed is pretty low and I expect to lift off at about 8mph.
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Kill SwitchAmazon$10.59Power shutoff when falling in, haven't added it yet. Not sure it will be able to switch the volts/current.
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10mm to 8mm shaft adapterAmazon$6.67Couple from gearbox to 8mm motor shaft. Am thinking about using 10mm motor shaft in future
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5.5mm Bullet Banana Plug ConnectorsAmazon$12.99I use these to connect the 3 motor phases to the ESC
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3mm pins for propAmazon$6.90I drill a 3mm hole in the shaft and stick these pins through, shortened to 20mm. This locks the prop on the shaft
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Marine GreaseAmazon$12.21Grease for the gap between the 2 shaft seals
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Adhesive SiliconAmazon$4.57Silcon to seal the cables in the mast mount. Also usefull to add some to the "water thight" cable outlets on the boxes at the board.
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Heat Conducting PasteAmazon$4.95Thermal paste to smear on the motor before pushing it into the aluminum tube so that the motor heat can travel to the tube and to water
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RG178 coax cableAmazon$10.20Antenna extension cable leading to front of board. received is close to ESC in back and submerged when starting
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2x Battery MonitorsAmazon$8.99Sounds alarm when voltage drops to defined level to avoid over-discharding and damaging the batteries
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HXT 4mm Bullet ConnectorsAmazon$10.99Using these to connect the batteries. Will upgrade to something bigger soon.
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1/8 NPT plugAmazon$10.54Piece of mind for keeping your eletronics dry. Just mount in your box, get a vacuum pump, pull a vacuum and ensure it's air tight. Then plug with the plug. This is the pump I got, you also need some adapters: https://www.amazon.com/gp/product/B00NP60URE/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
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Cable GlandsAmazon$13.77Set of cable glands to waterproof cabel entry to the box(es) with your ESC and batteries
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Adhesive Heat ShrinkAmazon$9.99Water-tight heat shrink for all sort of connections
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150A Circuit BreakerAmazon$22.99Fuse for the battery box, in case something shorts out to prevent fire
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Waterproof Case for Batteries and/or ESCAmazon$28.00Waterproof box for the electronics. Very happy with this box. Only downside is that no glue sticks to this material.
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M3 Socket Cap ScrewsAmazon$14.98M3 screw assortement for motor assembly
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M4 Socket Cap ScrewsAmazon$15.99M4 screw assortement for motor assembly
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Metric Nylon Hex Lock NutsAmazon$15.99Nuts for motor assemblty and for mast mount
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M6 65mm Socket Cap ScrewsAmazon$9.26Screws for mast mount
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M4 40mm Socket Cap ScrewsAmazon$10.58Screws for gear/motor/sealhouing mount. With the Neugart system I cut the heads off and used them as threaded pins with nuts on both ends. Easier assembly
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Water PumpAmazon$11.99Water pump to pump water up the mast for ESC and Battery cooling. Ordered it in April but haven't put it in yet. Maybe unneccesary if water can get pushed up from cruising speed
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5/16 Vinyl TubingAmazon$6.00Tubing for watercooling
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Ceramic BearingAmazon$10.00Ceramic bearing to stabelize shaft. Close to prop for max stability, running wet, therefore ceramic.
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10 Gauge Silicone Wire Spool Black 50 feet Ultra Flexible High Temp 200 degAmazon$48.98I use this for the 3 motor phases. Make sure you get the 200C rated cables. I used the same type of cable in 8 AWG in the past. I just switched back to 10 AWG, it is more convenient to handle. Seems to work fine so far.
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8 Gauge Silicone Wire, High Temp 200 degAmazon$39.98Using this between battery and esc. The 10 AWG cable should work too if the batteries are close.
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Dual Display Digital Voltage Current Measurement Meter with 100A/75mV Ammeter ShuntAmazon$13.32Volt and Ampere meter with at 100A shunt I put into my battery box to monitor voltage and amps.
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