Custom design , 3D printing, electrical repair.
I have 2 directions I want to go with this ,both ROVs one on top and another below the waters surface.
As it stands with this i only have the basic idea and plan in my head .
I plan on using 1/2" pvc for the body , and some water tight containers to contain the electronics. The unit will be powered externally with an umbilical cord, as well as communicating through the same tether.
I am currently working on this , and will be a pontoon boat design with the thrusters mounted below the pontoons . The pontoons will be made from 2' abs tubing about 20' long,with 3D printed caps. I plan on placing the batteries onboard, with radio controls . I Would like to design a winch system and possible magnet fish offshore , as well as having a camera on the magnet to get footage from the bottom of a body of water.
The thruster itself is a very simple design . Powered by a 540 60t brushed motor ( any 540or 550 will fit). With 2s lipos this unit moves alot of water. Currently the design is open with water filling the motor( this is fine in most cases). The only issue with this is that the bushings and brushed need to be oiled with mineral oil regularly.
I have a few things I can do with this in my head one not mentioned above is an underwater scooter, or powered kayak .
3D Printed Thruster Test
My friend one day sent me some pictures asking me to make this up for her, It turns out that its one of those things you didn't know you needed. I have a few prototypes given to my friend to test and show to her employer. Once I hear back about my prototypes I plan on printing a whole role or more of clips and will have them up for sale ,over and above any specific orders.
Early Feb 2021 I was surfing around and found , the amr 500 supercharger. It was the cheapest unit I have come across , and have yet to find. However it was too small for any cars I have , and to big for any of my toys . So I got to thinking maybe Ill print one .
At the current the supercharger has been build , and tested . Frankly it has failed the test , so I redesigned a most of it and now I'm in the process of printing the new parts , witch will likely involve some carbon fiber impregnated rotors .
I have long term plans of attempting to use a 3d printed supercharger on a car at one point in the future, but for now the goal is supercharge a small engine ,maybe finish a drag minibike I started years ago .
Supercharger Break in
This is wear my robot currently stands . I have the lift system mostly finished, as well as the battery holders. I ended up scraping the worm gear drives for a hybrid planetary, harmonic gearbox of my own design. This requires 775 motors and different motor mounting hardware.
I have worked a bit on the lawn mower attachment and really come up with nothing useful .
As my interest in the wains I have decided to move to other interests currently and when more parts show up ( slow shipping on cheap parts) I will get back to working on it.
This is a project that's slowly coming together . it uses 4 gearboxes I designed previously.,4 piece 540 motors , the linear actuator for the implements lift on the front, as well as some other features I have yet to sort out.
I have a few different implements in mind over and above the snowblower I created . Including a lawn mower , sweeper ,salter sander ,and a weed picker. The idea is to be able to do remote yard maintenance and possible autonomous yard work in the future.
My lights in this line are powered by just one AA battery, but have a life over 37 hours. ( tested)
Straight model : simple flashlight with lanyard hoop on the bottom.
90 model : simple flashlight in a more ergonomic package, with a magnetic base , and pocket clip. (Modeled after old school military lights)
both models are currently 3d printed in petg and coated, and available to order locally for in person pick up
online store sales available soon.
custom color option available
I am almost done this project , just waiting for a thrust bearing and ill have the cnc mill up and running.
Update: 2021-04-25 After experimenting with the mill I have come to the conclusion that the machine has too much backlash and it not built to a standard that would make a CNC viable.
Slack , poor build quality , and the round column makes things difficult .
I will likely return to this project after I figure out how to make the x,and y axis movement a lot better. I may use the grbl controller to run a larger 3d printer that I have in mind switching to a Arduino mega .
I needed a linear actuator for a project of mine, and thinking about how useful they can be I figured I should make some .
This is just a working prototype currently using 3d printer and rc parts currently. It currently has a 540 motor mounted to it but I was playing with a gearbox motor that's much stronger but a lot slower, witch may be useful in different applications .
I will probably make a you tube video of the working product when I get the kinks worked out.
I have future plans to add a potentiometer and a controller and have it act like a servo.
I have been working on a few projects lately , and i couldn't find any gearboxes that fit 540 rc motors easily, or relatively inexpensively. So i have drawn this up , it is currently in the prototyping phase but I'm giving the stl files away for free to anyone who wants to make one similar.
This particular gearbox is going to be matched with 3 others , one the same direction, and 2 the other direction, to drive wheels individually. I have other plans to use it with a high drive track system down the road . I'm sure it could be useful in many applications.
In current form the large shaft was machined from one piece . 8mm shaft dia, 10mm D shaft for the follower gear. the worm gear runs on a 4mm shaft . the output runs on 2 608rs bearings ,and the input shaft runs on MR84zz bearings. The output shaft may be reversed in direction to exit out the mounting side of the box. I prefer the machined shaft but will make a gear design that work with a strait 8mm shaft for ease of production.
More images in the gallery.
STL files are in the downloads tab above, or on thingivers. Instructions below.