Not all things can be 3D printed of course, though I'm sure some have tried. The following items is a list of hardware components we have used and recommend to complete your Spray jet boat. I've provided links in the description. You will notice on some of the hardware there is a number string after. For example 91223A411 under pitch adjuster hardware. These are McMaster-Carr product numbers that were used when designing the boat. They are a fantastic site for purchasing hardware, but unfortunately you will likely have to buy in larger quantities than you need. Nevertheless they have an awesome product search tool that you can reference.
Some of these links are Amazon affiliate links. These are always of products we used and design the model around. There is no increase of price to you for using these links but the small commission we earn helps to offset the cost of hosting this site and developing models.
Drive system:
4 mm dia. threaded, stainless driveshaft 114 mm in length. You may have to cut this to length.
4 mm Prop Dogs https://amzn.to/3Qmf9MU
4 mm to 5 mm shaft adapter. https://amzn.to/43RcyO7
18mm x 8mm boat prop nut for 4mm prop shaft. https://amzn.to/45927Xh
4074 brushless motor with 40s water jacket. https://amzn.to/3OnbxHZ
150 Amp Waterproof marine brushless esc. We chose the Flycolor 150 amp ESC with an integrated water cooling jacket. So far this ESC has been nothing but rock solid. Amazon link: https://amzn.to/43SnCKL
6S 6,000 mah lipo battery. This is what we chose https://amzn.to/3YmZLlA
(2) Ball bearings 10mm outer diameter 4mm shaft diameter 4mm width. https://amzn.to/3YmZRJY
M2.5 heat set inserts and heat insert tip for soldering iron. https://amzn.to/3DBSAfL
3 DuBro Pressure fittings (or water fittings per your selection. https://amzn.to/3KlGATl
Hardware:
The list of what is used is below, but I recommend simply purchasing an assortment like this one. Make sure to use stainless. You will get rust immediately on the others, I know from experience. https://amzn.to/3s1wv7x
(3)18-8 Stainless Steel Socket Head Screw, M2.5 x 0.4 mm Thread, 16 mm Long
(3)18-8 Stainless Steel Washer for M2.5
Motor Mount Hardware:
(6) M3 x 0.5 mm Thread, 14 mm Long
(6) 18-8 Stainless Steel Washer for M3 Screw Size, 3.2 mm ID, 7 mm OD
(4) 18-8 Stainless Steel Split Lock Washer for M3 Socket Head Screws, 3.4 mm ID, 5.6 mm OD
Servo Mounting hardware:
(4)18-8 Stainless Steel Socket Head Screw, M2 x 0.4 mm Thread, 12 mm Long
Standard servo mount screws
(2) s3004 or equivalent servos. One is for steering, one is for pitch control.
Ball Joint Rod End, M4 x 0.7mm Internal Thread, Right Hand. 59935k14
Outdrive Hardware:
Button Head Hex Drive Screw, Passivated 18-8 Stainless Steel, M2.5 x 0.45 mm Thread, 8mm Long. 92095A459
Pitch adjuster: 91223A411
316 Stainless Steel Ultra-Low-Profile Socket Head Screw, M3 x 0.50 mm Thread, 5 mm Long
(2) M3 heat set inserts.
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