- #1
lukieshowie
- 1
- 0
- TL;DR
- Looking to hear how jetski sponsons will work when cnc/milled
Hello everybody, I just picked up two 95 Sea-Doo Xp's, one owner, 94 and 98 hours, all service records with it, with a trailer for 1500 bucks, they run fantastic. I am looking to make some custom sponsons, and I am wondering if my idea is feasible.
The idea is that I have a metal bracket on both sides of the fibreglass hull, and there will be a Tapered Dovetail Groove protruding, that the sponson will hook to, and as the water pushes the sponson further back along the tapered groove, it will make more tension and hold it in place, I will also have a back plate, where I will have a 17-4 quick release pin on the endplate, with a 1/16" gap so it can push back more and have a resting place, and then I will also have multiple sponsons shapes and sizes, depending on the conditions and my mood, and then also I can just run no sponsons so I can whip and drift the ski, ik the x4 hull is already pretty tail happy, but I will be out on the big lake (lake Michigan), so I want some options.
the brackets will be out of 7075-T6 Al, and the sponsons out of that as well, or some HDPE. I will cnc everything, and am making it in CAD (SOLIDWORKS) and will run some hydrodynamic simulations, I am just wondering if there are any concerns about this project, is it even realistic to be attempting, and is it possible. bc I want to make it all myself, and want a project this winter before the riding season is here. everything will be 3d printed and simulated before cncing it and installing on the ski.
also am wondering if i should fillet and curve the edges of the sponson, because i want to know if my current setup will have a log and wedge effect with the current setup, due to the fact the i think the edges will have the most stress on them. prolly gonna end up with titanuim bracket and HDPE sponson material. fyi, one of the skis old sponson broke, so I want to upgrade it and figured to make a project out of it. TIA! I will provide a early version of what I am looking to make, as I threw it together in SOLIDWORKS this morning.
The idea is that I have a metal bracket on both sides of the fibreglass hull, and there will be a Tapered Dovetail Groove protruding, that the sponson will hook to, and as the water pushes the sponson further back along the tapered groove, it will make more tension and hold it in place, I will also have a back plate, where I will have a 17-4 quick release pin on the endplate, with a 1/16" gap so it can push back more and have a resting place, and then I will also have multiple sponsons shapes and sizes, depending on the conditions and my mood, and then also I can just run no sponsons so I can whip and drift the ski, ik the x4 hull is already pretty tail happy, but I will be out on the big lake (lake Michigan), so I want some options.
the brackets will be out of 7075-T6 Al, and the sponsons out of that as well, or some HDPE. I will cnc everything, and am making it in CAD (SOLIDWORKS) and will run some hydrodynamic simulations, I am just wondering if there are any concerns about this project, is it even realistic to be attempting, and is it possible. bc I want to make it all myself, and want a project this winter before the riding season is here. everything will be 3d printed and simulated before cncing it and installing on the ski.
also am wondering if i should fillet and curve the edges of the sponson, because i want to know if my current setup will have a log and wedge effect with the current setup, due to the fact the i think the edges will have the most stress on them. prolly gonna end up with titanuim bracket and HDPE sponson material. fyi, one of the skis old sponson broke, so I want to upgrade it and figured to make a project out of it. TIA! I will provide a early version of what I am looking to make, as I threw it together in SOLIDWORKS this morning.
Last edited by a moderator: