Dadio's 3D Printing Stuff

[coxbros1]

I love seeing the progression!

[TheDiamondOne]

I love seeing the progression!

Me too! This setup is especially important to Derek and my racing operations. Got best guy in the biz bustin it out!

[Dadio]

I love seeing the progression!

Me too! This setup is especially important to Derek and my racing operations. Got best guy in the biz bustin it out!

No pressure then

[Dadio]

Production has begun , two more diffs ,3 more spindle sprockets and a bunch of display parts . All for Coxbros team racing .

[coxbros1]

Production has begun , two more diffs ,3 more spindle sprockets and a bunch of display parts . All for Coxbros team racing .
20240128_185727.jpg

Dudes nailing it!....now I have to do my Mid 4:10

[TheDiamondOne]

Dadio knocked it out the park! Much Appreciated Gavin!

[Dadio]

No problem , just want to see it all working when I stalled , I usually have a car here to test it all out on but shipping would be a pain in this case .

[silvertriple]

i'm quite curious to see how the sprocket is actually working in real, and how long it last... I'm saying this as I've been quite disappointed with my Nylon idle gears...

Any thought about printing the sprocket part in SLM and design part around to be printed in Nylon?

[Dadio]

i'm quite curious to see how the sprocket is actually working in real, and how long it last... I'm saying this as I've been quite disappointed with my Nylon idle gears...

Any thought about printing the sprocket part in SLM and design part around to be printed in Nylon?

I've had way more luck with sprockets than gears , maybe because the chain engages on a far greater circumference that the few teeth of a gear , they will of course wear but from what I've seen with the dogfighter sprockets (and they are smaller ) they last well enough , I'll be sending the print files to Derek so he can source replacements more locally and some files better optimised for SLS or MJF printing at a pro shop.
The one aspect of the design I'm more concerned about is the way the smaller sprockets engage with the spur gear , each has 3 x 3mm pins that go in holes on the spur , I'm going to include a file for a design that can have 3 x M3 set screws screwed into the flange on the sprocket but its just not printable other than at a pro shop with SLS or MJF .

[Dadio]

The circled ones are the Pro printed option .

Sprockets v26.png (55.34 KiB) Viewed 221 times

Sprockets v26.png (55.34 KiB) Viewed 221 times

[coxbros1]

Straight from

[coxbros1]

Dadio nailed these sprockets!..this are for the VTA Nationals in Sept...which i plan on winning!

[coxbros1]

Dadios Designs completed!

[Dadio]

As you may have seen I've now got a Mardave Meteor so as well as getting the old girl a new pair of sneakers and a new hat I've also started CAD modelling and printing bits , mostly just the gearbox and some gears , I was not initially going to do the gears as Mardave still stock two of the three gears but after trying one of their new gears incorporating bearings I was not overly impressed when it broke after only a few runs with a brushed motor and 7.2v nimh battery's.

So I decided to go ahead and model and print them as well as the gearbox .

I've run it a little and they fit really well but they are only PLA so as soon as they get warm they will soften and fail , in the fullness of time ill pop the gears in my Shapeways shop , the gearbox is a free download on Thingiverse already.

[Dadio]

This is one of those really simple ideas , its just mesh for body windows , printed in a 100mm square .