1/10 Oshkosh M1070 A0 (3D Printed/Scratchbuilt)

[ddmckee54]

I've got a couple of questions for you. You're using about a Gazillion fasteners on your stuff and a lot of them appear to be going into plastic parts. What are you using for fasteners and where do you get them? Are those sheet metal screws, or machine screws and nuts? What size are they?

I know you're working in 1/10 scale, and I'm working in 1/16 so it's kind of like comparing Apples and Oranges... I've got a butt-load of M3 stuff from working on my 3D printers, but it looks kinda big in 1/16 scale. And M2 seems soooo tiny, let alone anything smaller.

Don

[Orange RC Works]

Originally Posted by ddmckee54

I've got a couple of questions for you. You're using about a Gazillion fasteners on your stuff and a lot of them appear to be going into plastic parts. What are you using for fasteners and where do you get them? Are those sheet metal screws, or machine screws and nuts? What size are they?

I know you're working in 1/10 scale, and I'm working in 1/16 so it's kind of like comparing Apples and Oranges... I've got a butt-load of M3 stuff from working on my 3D printers, but it looks kinda big in 1/16 scale. And M2 seems soooo tiny, let alone anything smaller.

Don

Yeah, for my projects which i decided to be all just 1/10, its M3 for most of it, because im familiar already with the tolerances and allowances for the holes and the hex hole for the nut and if i assume that something does not really need to be taken off everytime, i just screw it in the plastic but for the most part, i use a nut embedded on the plastic with a hex hole so i dont have to hold it with a pliers when getting tightened... for smaller parts, i use M2.5 sometime with nut and sometimes just screwed in the plastic...and a few places i use M2 usually screwed in to the plastic. i set the big hole at 1.1mm and the small hole at 0.9mm...for m2.5, 1.35 for the big hole and 1.15 for the small hole... for M3, 1.65 for the big hole, and 1.35 for the small if i want it screwed in to the plastic... for a 1/16 build, i would say M2.5 for most fastened parts... not too big and not too small... for some smaller parts, you can use M2.... i just buy them off amazon in the hundreds from a seller named uxcell at around 7-9 bucks for most sizes of 100 pieces packs.

[Orange RC Works]

and the tires are done....


next will be the deck and ramp...

[dremu]

Oh. My. Gog. That is some serious work.

That truck vaguely reminds me of something ... hmm, what could it be? =))

https://rctruckandconstruction.com/s...ad.php?t=13841



But nowhere near the level of detail you're doing. With the interior, I don't know how you have room to squeeze in a power train, even @ 1:10.

I feel your pain on flexible filament, and IMO you're crazy (in a good way!) to 3D print so much. Especially tires, when they're available off-the-shelf.

Wrt fasteners, I've been using the brass threaded inserts. You print a hole just slightly smaller than the OD of the insert, as determined empirically for your printer and material and brand and color and phase of the moon(*), and then either draw the insert in mechanically, or heat it and insert it with a soldering iron.

(*) Buddy of mine describes 3D printing as "an iterative process." Possibly the best way I've ever heard to say "Trial and error. So much error." =))

But again, OP, hats off to you. I spent a bazillion hours on mine so I can't imagine what yours will entail, but it's a beautiful thing.

-- A

[Orange RC Works]

This is whats going to be on that trailer... But most probably ill be starting a new thread on another section... anyway, I was drooling at the M1000 trailer and really keen on starting the build on it, but while I was gathering info, i just cant handle the number of wheels that its going to need, I thought, that would be too much work just to have a trailer, adding to that is the complexity of the axles that are supposed to turn as well, I would need a 12 channel transmitter for all those wheels to work like the real ones...so i decided to build a conventional flat bed with the goal of loading it with either a Cat 950 loader or a D8 Dozer... and I am now starting the CAD work on it... I made trial prints of the track chains and it works, I also decided to use ABS for those heavy wear parts... im leaning on parallel gearmotor drives for the tracks but im still clueless as to how i should program the transmitter... but anyway, ill figure it out...im excited for this new build, wish me luck guys...cheers.

[Orange RC Works]

finished the deck and ramp... i just need to install the alum. cleats that bolts on the side....and then this trailer build is done...

[Orange RC Works]

Build update for today.... test fitted the trailer...