1/10 Caterpillar D8T Build (3D Printed)
Just started on this very challenging build..
https://i.ibb.co/TRQgksr/CAD-03.jpg https://i.ibb.co/B45TgD6/Untitled.jpg https://i.ibb.co/mGKYncv/20230117-025401.jpg https://i.ibb.co/rt9nNM4/20230119-014912.jpg |
Re: 1/10 Caterpillar D8T Build (3D Printed)
steering and throttle program mix on my Radiolink RC6GS pistol radio...
https://youtu.be/knUPPHZKtQg |
Re: 1/10 Caterpillar D8T Build (3D Printed)
That looks like a really good start!
Which 90 deg. gearmotors are you using for this? Any idea how much force those tracks can hold before something goes pop? |
Re: 1/10 Caterpillar D8T Build (3D Printed)
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well, this build will be mostly for show and for the pleasure of seeing it run, so yeah, dont really know whats the max stress the tracks can hold, lets just see how long till the first one explodes... https://i.ibb.co/8m0BgJj/12v-65rpm-gear-motor.png |
Re: 1/10 Caterpillar D8T Build (3D Printed)
Thank you, i thought it looked like that's what you were using. I'd been considering those for a project. Any idea what size motors those use?
Sorry, I wasn't sure if you were planning to try staying plastic track, or prototype a few then send it off later to be printed in metal. Can't wait to see this one come together |
Re: 1/10 Caterpillar D8T Build (3D Printed)
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Re: 1/10 Caterpillar D8T Build (3D Printed)
Rolling chassis is ready for a test run...
https://i.ibb.co/Dww8pxJ/20230124-021056.jpg https://i.ibb.co/D7LnK2m/20230124-021102.jpg https://i.ibb.co/hDQZ8Mm/20230124-021111.jpg https://i.ibb.co/80LDXXS/20230124-021227.jpg and the motor test... https://youtu.be/Cv8Vz40k5Qg |
Re: 1/10 Caterpillar D8T Build (3D Printed)
Wow your really moving along on this one.....looks like the drive train test was a success speed look pretty good....
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Re: 1/10 Caterpillar D8T Build (3D Printed)
Yeah good call, 3s makes more sence for the 12v motors.
3.7v, 7.4v, 11.1v Your prints are looking really nice |
Re: 1/10 Caterpillar D8T Build (3D Printed)
Latest update on this build... im now designing the actuators using a small gearmotor with an M3 lead shaft at 65 rpm, this will be the actuator to tilt the rippers
https://i.ibb.co/dBS5kdt/20230201-234903.jpg https://i.ibb.co/8N03P3c/20230201-234933.jpg https://i.ibb.co/XXtKVXn/20230201-235004.jpg https://i.ibb.co/3zr7xww/20230202-000429.jpg https://i.ibb.co/kc6NpmH/20230202-000459.jpg https://i.ibb.co/fGKVF9Q/20230202-000525.jpg |
Re: 1/10 Caterpillar D8T Build (3D Printed)
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Re: 1/10 Caterpillar D8T Build (3D Printed)
Gearmotor actuators for the rippers is done and installed...
https://i.ibb.co/mc929KV/20230204-220556.jpg test vidoes... https://youtu.be/BsQvf6rvS60 https://youtu.be/zY9LS37m5LU |
Re: 1/10 Caterpillar D8T Build (3D Printed)
Are they just N20 motors....
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Re: 1/10 Caterpillar D8T Build (3D Printed)
It looks like you are controlling the motors with just a toggle switch. Do you have any end limits on your actuators?
If you have the limits installed, I'd be very interested in seeing how you pulled that off. I've got several projects in the works where end limits on the actuators would be nice to have, but as usual with most RC projects, space is at a premium. Ten pounds in a five pound sack is a good description for a lot of projects. You said that you are using the M3 version of the gearbox with the threaded rod output as your actuator screw. What are you using for the nut? I know you've got this type of actuator on your powered ramps, but they won't get used as much as the ripper will, or the blade if you use the same type of actuator there. Any concerns about lubrication and/or wear of the screw/nut? Don |
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https://i.ibb.co/HCg6VdF/2023-02-06-...Thread-Out.jpg |
Re: 1/10 Caterpillar D8T Build (3D Printed)
Yeah those are n20s.. I have some like that of various rpm's so I can make my own cylinders like you did... been kicking the idea around for a while now just haven't started on them..
Did you print the inside of the cylinder to fit the nut or just press it in.... I have some of the brass press in threads I want to try too.... |
Re: 1/10 Caterpillar D8T Build (3D Printed)
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https://i.ibb.co/5xdVMhN/cylinder-1.jpg |
Re: 1/10 Caterpillar D8T Build (3D Printed)
I see.....
The rod, a cylinder in a cylinder... so you don't see the rotation... That was my thought... It looks good in 1/10 I'm not sure if I can get everything small enough to look right in 1/16. I might have to just deal with seeing one cylinder rotating.... But thank you for showing the exploded view it helps a lot... |
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