[Far451]

I have finally finished updating my files and finishing the electronics on my trap.
the new files are here: https://www.thingiverse.com/thing:6849664

And here is

[Far451]

Video of it in action:

[Far451]

Here is a video that explains all the features of my RTV build. And some improvements to the free files on Thingiverse.

[mike_waclo]

I have finally finished updating my files and finishing the electronics on my trap.

It looks stunning! The video demo is amazing! Can I ask where you got your wheels? I've only been able to find them with the inner hubs more recessed:



Just trying to see if there's still a source for the more accurate versions.

[Far451]

I designed my wheel hubs. They are a 3d printer file available for free. You will need to take your existing wheels apart. Be very careful with the screws, I found they can strip easily, you need a snug fitting allen key, and take your time.

Look for files, 34, 35 and 36.
https://www.thingiverse.com/thing:6849664

[mike_waclo]

I designed my wheel hubs. They are a 3d printer file available for free. You will need to take your existing wheels apart. Be very careful with the screws, I found they can strip easily, you need a snug fitting allen key, and take your time.

Look for files, 34, 35 and 36.
https://www.thingiverse.com/thing:6849664

Ahh, I see... thank you! Do you have a preferred material type for the hubs? Guessing they'll need to be more torque-resistant than PLA.

[Far451]

I use PLA. The settings are listed in the MCP 3-RTV Printed file check list.PDF file. It isn't the torque that broke my first design, it was the full speed crash into a curb. I run a brushless motor, so it was really fast. (This newer design is waaaaay stronger)

They are beyond sturdy if your printer works properly. (layer adhesion is what I mean)


The centre part that makes it more accurate just screws in after you mount the wheel on the trap. You actually don't need a hub extender either, it's built in. So you just mount this wheel on the original 12mm hex nut, and use the original nut to secure it.

[mike_waclo]

The centre part that makes it more accurate just screws in after you mount the wheel on the trap. You actually don't need a hub extender either, it's built in. So you just mount this wheel on the original 12mm hex nut, and use the original nut to secure it.

Fantastic! Thank you!!

Last question (for now)... You can see in my picture that there's a long nut that reaches through the wheel extender to attach to the axle. Yours mimics the look of the original with the open silver tube with the large black nut attached on the outside of the wheel. Can you tell me what that part is? I've got the black nuts that attack to the hub extenders, but I'm not sure what that open silver tube pictured is, to achieve that open center look of the original prop. Thanks again!

Sorry, just opened up your files, and I see that those are printed parts. They look convincingly metal in your photos! Thanks again!!

[Far451]

The parts look metal only because I used a shiny silver filament.( Ziro silky PLA) It isn't very strong, but looks great!

[mike_waclo]

The parts look metal only because I used a shiny silver filament.( Ziro silky PLA) It isn't very strong, but looks great!

Got my set of hubs printed... They do look fantastic!



Unfortunately, the supports got a little overzealous, and filled up the threaded hole on top, so I've got a reprint going that's only supporting critical regions, and is lightened up a bit. (I followed your 35% infill recommendation, but went for 6 outer walls to increase strength... They feel a little too beefy, so I slimmed them down to 3 walls.

[Far451]

It looks great! The SBP in the filename refers to support. It means use support for areas with a direct line to the buildplate. This is a setting in the slicer I use (Cura). Not sure what slicer you are using, but hopefully you can find that setting. I use 3 walls as well. Even wit 3 walls and 35% they are pretty solid. I can't wait to see them on your RTV!

[mike_waclo]

It looks great! The SBP in the filename refers to support. It means use support for areas with a direct line to the buildplate. This is a setting in the slicer I use (Cura). Not sure what slicer you are using, but hopefully you can find that setting. I use 3 walls as well. Even wit 3 walls and 35% they are pretty solid. I can't wait to see them on your RTV!

Ah, I'm in Bambu. I did use supports on build plate only, but because there was the hole for the axle to go through in the base, the supports decided to feed up through it onto all of the threads above.

Can't wait to get these out on the road!

[Far451]

I now understand why it looks so good. My Babu printer arrives today, so I am keenly interested in the solution.

[mike_waclo]

I now understand why it looks so good. My Babu printer arrives today, so I am keenly interested in the solution.

Finally got all four printed and installed... They run great at high speeds! It steers even better now than it did with the hub extenders I used to use. I love how they look... Awesome files!!