Re: Bob's M1070 (maybe)
 

Bob,

I only could find this pic I have showing how someone (I forget who) made the big rig drive axles steerable. I also forget where I got it from (I think it was from the Garden but I could be wrong). I know I've seen others on German or Dutch forums. I'll keep poking around. Hope this helps.

Re: Bob's M1070 (maybe)
 

Looks a bit like this turning kit for robbe axles:
www.afv-model.com

Re: Bob's M1070 (maybe)
 

Hey Sass, what are the dimensions of those Tamiya hummer wheels? Are they hex or pin drive?

Re: Bob's M1070 (maybe)
 

They're hex drive. I measure 25mm wide, with 48mm at the point where the tire bead sits, and 52mm at the flange outside the tire bead. And, if you want them, I have eight of these wheels as spares, along with those two sets of axle-straighteners.

Re: Bob's M1070 (maybe)
 

Hmmmm, i've been doing my research on axles/wheels. tires etc (trying to avoid going back to my disastrous paint on my OP truck), and have found the following.

1/12 seems to be the scale to build to use TLT axles, Tamiya hummer wheels, and rc4wd mil-spec 1.9" tires. BUT, i'd really like to do 1/14 to match OP, and another military truck i want to do.

Looking at straighteners, and steering kits for Tamiya semi axles, makes them ludicrously expensive, but then i remembered that Integy do some 1/14 drive axles. Full ali, and only $10 more than a TLT axle!

Rc4wd 1.55" rock crusher tires are the right size, but, wheels are a problem. Need around a 41/42mm wheel. The RC4WD panthers are the right size, but have an 8mm drive hex, not 12mm.

So, my idea at the moment is this:
Use Integy 1/14 axles ($70 each)
Use RC4WD 1.55" rock crushers ($25/pair)
Buy Panther wheels ($8/pair)
Buy Sass's spare Hummer wheels ($20/8)

Then cut the middle out of all the wheels, and bolt the hummer centres with 12mm hex, to the panther rims to get the right size.

How does that sound?


Or, just build it 1/12 with tlt axles lol

Re: Bob's M1070 (maybe)
 

I have used some two-piece Tamiya car rims in the past, where the (white) center screwed into the (chrome) outer rim. The idea of these is that you can screw the center to either the inside or the outside of the rim, to make a more negative or positive track. The problem I've found when you start using these centers as the 12mm hub for other wheels, is that the overall width tends to get really wide.

Personally, I like the Humvee rims, as they don't have much offset. And, since I plan to cover up most of their detail with new hubs anyway, they work out fine for my build.

Re: Bob's M1070 (maybe)
 

Offset might not be a bad thing, might let me match the tires to the correct width of the truck.

I think i might just have to get a set of tires/wheels and see what works.

Re: Bob's M1070 (maybe)
 

Was poking around online tonight, and came across this site, sells Tamiya semi axles converted for steering. Sells the conversion by itself as well, but an interesting option if you have to use semi axles on your project.

http://www.doc-gear.de/abbildungen/art20361.jpg
Link

Not particularly cheeap though, about 95Euro/$130US. Cheaper to buy the Integy aluminium axles.

But i did see they also have extended shafts for 3 speed gearboxes so you can use a front and rear output, no transfer case needed. Same as Joe had but ran out
Shaft

No idea if the shop is any good though. Anyone ordered from them before?

Re: Bob's M1070 (maybe)
 

The M1070 is still on my to do list! Just gotta finish off Optimus Primes trailer, then paint my truck made from leftovers from the OP build, then will be on it!

I've been seriously looking at 3d printers lately. I make a lot of models (1/35 military mostly) so for me it would possibly be worthwhile. Looking at what other people charge for printing, as well. That may be simpler.

With that in mind i started a cad model. The cab would be made the old fashioned way by cutting sheet, but for detailed things like the grille, and complex shapes like the hood, i reckon 3d printing might be worth it.

http://members.iinet.net.au/~canison/m1070/cab.jpg

Re: Bob's M1070 (maybe)
 

There is a M1070 cab on shapeways. I had the designer upsize it to 1:9.8 but it was going to cost too much for my budget. There is a 1/12 scale version on there.

Three piece cab. 1/12 scale is a reasonable cost.
https://www.shapeways.com/model/1435...e&materialId=6

I am building a 1/6 scale version of the M1070 using a 1/6 CXT Cab, Wraith and AX10 axles. I used some of your drawings to help me scale it out.

Re: Bob's M1070 (maybe)
 

I think our definitions of reasonable cost differ! lol

The cab is easy, its a basically a box with all flat pieces, easy to make from scratch with $5 worth of styrene sheet.

But complex bits like the hood, while not impossible to scratch, make life a bit more difficult.

Re: Bob's M1070 (maybe)
 

I guess so. lol I come from the RC Crawling world and construction RC's are alot higher in cost, relatively speaking. Most of my crawlers dont go over the $1500 amount. I have seen some nice rigs on this site that sell for much more than that but they are incredible machines too!

The link I sent has 3 different cab pieces, so you could just get the hood. The guy that handles these files is in Denmark and is super nice and easy to work with.
Hood
https://www.shapeways.com/model/1435...s&materialId=6
Bumper
https://www.shapeways.com/model/1435...s&materialId=6

Re: Bob's M1070 (maybe)
 

Ahh ok. Thats for the M1070F, a version sold to Europe.
I'm going for the US M1070 HET, which has a squarer hood.

Must be said though, this M1070F with its massive tyres looks pretty awesome:
http://www.army-technology.com/proje...kosh-1070f.jpg

Re: Bob's M1070 (maybe)
 

Hey,Bob. Start building,I can't wait to see it going.....

Re: Bob's M1070 (maybe)
 

Well i've started to collect parts, does that count as building?

Re: Bob's M1070 (maybe)
 

Ahh. good catch on the model variations. I didn't think about that and have seen the US version too but forgot they were different.

Here is my build, loosely based on the M1070 truck. Just waiting on the ten 2.2 MilSpec tires to show up to start the chassis build.

http://www.rccrawler.com/forum/multi...s-tow-rig.html

Re: Bob's M1070 (maybe)
 

No, doesn't count...must have pictures to count.

Re: Bob's M1070 (maybe)
 

Just had a look at your build Szczerba, looks beefy!
Id just scratchbuild the body, its just flat panels so only need $10 worth of styrene sheet.

Im up-armouring mine as well, which actually makes the build easier.
I'm planning to use Integy axles, they make a driven front axle in 1/14 scale, so that makes life simple.
As for suspension, i'll be using a modified stock setup with Tamiya oil semi shocks. Also using Rock Crusher XT 1.55" tires, they're 94mm which is about right for 1/14 scale.

Re: Bob's M1070 (maybe)
 

No way will I tackle building a styrene cab! Not my strong point. Lol

Sounds like a plan, I'll be,watching this build for sure.

Re: Bob's M1070 (maybe)
 

I've actually found proper scale tires, with michelin markings and everything. but they're $25 each! When I need 9, that makes it rather ludicrously expensive.