Re: Bob's M1070 (maybe)
 

Kaptain Jack, just for you...

It has begun!

http://members.iinet.net.au/~canison/m1070/1.jpg
http://members.iinet.net.au/~canison/m1070/2.jpg

Re: Bob's M1070 (maybe)
 

I'm building it with added CPK armour, so this is the inspiration:
http://members.iinet.net.au/~canison/m1070/3.jpg
http://members.iinet.net.au/~canison/m1070/4.jpg

Re: Bob's M1070 (maybe)
 

cab looks good. What's the width?

I have my rough draft m1070 cab mocked up as well.

Re: Bob's M1070 (maybe)
 

Its about 165mm wide.

Re: Bob's M1070 (maybe)
 

Finally! Looks great,Bob.You have a bunch of followers,anxious for next step.

Re: Bob's M1070 (maybe)
 

Can anyone recommend some wheels, preferably plastic, with about a 40mm diameter, 34-35mm wide?

Suggestions?

Re: Bob's M1070 (maybe)
 

That's about 1.5".
These are 42mm http://store.rc4wd.com/Panther-Plast...-2_p_2032.html
RC4WD also has a decent selection of 1.9" wheels and beadlocks if you can go up to a 1.9" wheel.
http://store.rc4wd.com/19-Wheels_c_59.html

Re: Bob's M1070 (maybe)
 

I have some Tamiya humvee wheels that I forgot about that are pretty close. Going to use those even though they're a little big.

Re: Bob's M1070 (maybe)
 

This build will look awesome! Can't wait to see it done!

Re: Bob's M1070 (maybe)
 

I suppose I should get rid of the (maybe) in the title!

Re: Bob's M1070 (maybe)
 

Always nice when goodies arrive. Just got 2 of these for the front and rear axles. They do middle axles as well but are out of stock atm.

http://www.integy.com/C24519BLACK.jpg

Re: Bob's M1070 (maybe)
 

Hey I have seen one of these M1070 in person at the Oshkosh air show in 2012 and it is MASSIVE.

I took some pictures of it, might help you for some additional reference:
http://imageshack.us/g/1/10446715/

Re: Bob's M1070 (maybe)
 

Oh nice! Thanks for that!

Re: Bob's M1070 (maybe)
 

Yup get rid of the maybe

Re: Bob's M1070
 

If i could work out how!

Re: Bob's M1070
 

pm phhstix and tell him to change it for you

Re: Bob's M1070
 

So i did a bit of work on the cab today. Added the CPK armour panels, and accompanying windows. Added the appropriate bolt details, grab rail, door handles, lifting lugs etc. I'll probably re-do the lifting lugs though, not very happy with them. One side of each window frame is only taped on so i can remove the windows for painting.

Btw: the little bolts, they really are hex bolts on washers, each into a 1mm hole.

http://members.iinet.net.au/~canison/m1070/10.jpg
http://members.iinet.net.au/~canison/m1070/9.jpg
http://members.iinet.net.au/~canison/m1070/8.jpg

Re: Bob's M1070
 

Looking great bud!

Re: Bob's M1070
 

The tires from rc4wd came in, Rock Crusher XT 1.55's. The diameter is about 94mm which is about spot on for the real Michelins in scale. I'd have preferred to use their mil-spec tires but they arent available in this size.

Sassgrunt on here was kind enough to send me some spare Tamiya Humvee wheels he had, And they do fit, but they compress the sidewall a bit, and didnt look quite right.
I found a silver touring car wheel in my bits box which was the same diameter as the humvee wheel, but wider, but still didnt look right.
I borrowed a wheel from a mates Tamiya Mini, and they fit way better. So i've ordered some black dish mini wheels to use. I'll be making hubcabs for them, which will be easier to attach to dish wheels.

Pic left to right; Touring car wheel, humvee wheel, mini wheel.
http://members.iinet.net.au/~canison/m1070/11.jpg

Re: Bob's M1070
 

Have had some time over the christmas break, so got started on the chassis. The mounts on the Integy axles arent a direct fit for the stock truck suspension setup. It does have mounting holes at the right width though, so after a bit of experimentation, came up with the following mounts.

Managed to use kit parts in different places to keep the front suspension layout mostly the same, including the leaf spring, but used Tamiya oil filled semi shocks instead.

The rear is similar, but used 2 sets of plastic arms. Again used kit parts, but oil shocks.

In both cases the frame sits a bit higher from the axle than stock, but should give it that right sort of high look i hope. My only concern is the rear axles. On a stock kit, the axles can rock easily on the leaf springs, which gives them some nice soft suspension. But the way i've done them does away with that. Its quite firm, i dont think they'll have that sort of easy adjustment/movement in them. But if i just use stock spring shocks, it'll be too soft, it'll sag because of the weight.

Any ideas?

Rear:
http://members.iinet.net.au/~canison/m1070/12.jpg
http://members.iinet.net.au/~canison/m1070/13.jpg

Front:
http://members.iinet.net.au/~canison/m1070/14.jpg
http://members.iinet.net.au/~canison/m1070/15.jpg


Still waiting on the centre axles.

Re: Bob's M1070
 

I put standard sprung shocks on the rear axle to see how it feels. Definitely works better, the axle freely moves now, but it does sag a little. Depending on what the truck ends up weighing the sag may become an issue, but it will also have another 2 axles to spread the load on, so who knows, might be ok.
Might even be able to find some stiffer springs to put in the shock.

Have also discovered that the small steering arms that mount to the C hub interfere with the tire and wheel. Will have to make some new ones for front and rear.

And the rear tires hit the screw holding the lower link when turned as well. May not be an issue though since the rear wheels steer less than the front.

Re: Bob's M1070
 

Bob, I don't know if you have the fifth wheel figured out for your build yet, but I just found this one for mine (which isn't nearly as progressed as yours is).

http://www.ebay.com/itm/1-14-5th-Whe...item27dce05390

I ordered it about two weeks ago, and just got it in today. It's all metal and pivots both forward-rearward, and left-and-right. The release handle unlatches it well. It comes with a new 'mushroom' for coupling, as it is somewhat smaller than the Tamiya one. I tried making my own out of Tamiya bits, but was never happy with it. This one is really nice, and I'm glad that someone finally made one. Now, if they will only make a sliding fifth wheel.... -Mike

Re: Bob's M1070
 

Joe has the same thing, for $30 less! here

And i actually have one of those 5th wheels, but with a different base. I dont plan to use the base though anyway.

Re: Bob's M1070
 

It's great to know that I can get it even cheaper than I did, because I need another one for a Scania 8x8. Thank you for the link to Joe. I like your idea of changing out the base, as this one is not nearly tall enough.

Re: Bob's M1070
 

Update on the fifth wheel. I ordered the one from Joe and it got to me today. It IS $30 cheaper, but it isn't the same fifth wheel at all. They both sit at about the same height, and are both made of metal. On the one Joe sells, the plate is a bit shorter in length, and most importantly, the plate can only pivot fore-and-aft, like the stock Tamiya one does. There is no spring in the pivot; just the weight of the 'tails' makes the rear of it pivot down. On the one I posted, it can also pivot side-to-side, which is what I want for it to be able to do for an off road truck. Both directions are spring-loaded, so that the tails stay down and the side-to-side comes back to center. Joe's is nice, but not as suitable for off road builds as the more expensive one. -Mike

Re: Bob's M1070
 

Ahh bugger. They looked the same but I guess you never can tell.

Re: Bob's M1070
 

Any progress, Bob?

Re: Bob's M1070
 

Nah, waiting on parts at the moment.

Re: Bob's M1070
 

Sonofa....

Been waiting for Integy to have the matching mid axles back in stock so I can order 2 for the M1070. They've been out for about 3 months and was listed as "Restock pending" for ages. Finally today they were back in stock!

Went to order 2, and blow me sideways, they only had 1!

They make them, they sell them, been out of stock for months, and when they do get them, they only have 1!

*mutters under breath*

Re: Bob's M1070
 

Suppose i should make a start on the winch platform for it while i wait for parts.

Knocked up a couple of basic drawings for it so I can work out sizing etc. Have left a lot of the little details like bolts, levers, tow cables, wiring etc. Thats easy to do after the base structure is built.

http://members.iinet.net.au/~canison/m1070/16.JPG
http://members.iinet.net.au/~canison/m1070/17.JPG
http://members.iinet.net.au/~canison/m1070/18.JPG
http://members.iinet.net.au/~canison/m1070/19.JPG

Re: Bob's M1070
 

Aaaaalrighty then, now that Optimus Prime is finished, time to get this sucker going!

Integy FINALLY got some axles back in stock, so the last axle i needed has now arrived.
Brian from Exclusive RC 3d printed some parts i designed, grille, hubcaps, fenders etc. But there were so many little parts i wanted that he'd be doing nothing but printing parts for me, so, i bought my own 3d printer!

I've made a start on printing parts for the winch platform. Not everything will be printed, no need. Some parts will be quicker to scratch by hand than to design and print. The main cab is done, and now i have the ;ast axle i can start placement of the body this weekend.

Re: Bob's M1070
 

I've started making the various "blocks" of the superstructure, fuel tank covers, locker boxes, winch platform etc. The hood is assembled, but needs puttying and sanding around seams etc.

The rear steering servo is just taped in at the moment, its facing downwards, but i may move it between the frame rails facing forwards. The tires arent glued yet, so they've a bit crooked at the moment. I do have some other parts for the winch platform made, but not mounted yet.

Long way to go, but a decent start.

http://members.iinet.net.au/~canison/m1070/21.JPG
http://members.iinet.net.au/~canison/m1070/24.JPG
http://members.iinet.net.au/~canison/m1070/26.JPG
http://members.iinet.net.au/~canison/m1070/27.JPG
http://members.iinet.net.au/~canison/m1070/20.JPG

Re: Bob's M1070
 

Bob! you got 3d printer?

Re: Bob's M1070
 

Sure do!
Not using it for everything though. The fuel tank covers for example were quick and easy to make from styrene, but some of the odd shaped things, or repetitive shapes are great for the printer!

Re: Bob's M1070
 

I'm thinking of getting one,but hard to decide with whom to go.

Re: Bob's M1070
 

I ended up getting a Robo3d, bang vs buck they're hard to beat.

But, ive spent a lot of time tinkering, learning the best way to print different shapes, how to get the best results etc. For example, the hood for the M1070, i did try a single piece print, but for various reasons, i couldnt get a result i was happy with. In the end, i broke the model down into several parts, ie, front, top, sides etc.

3d printers arent at the level of a home inkjet paper printer for example, you really do need to play with them, learn how to work within their limitations, and how to use their strengths effectively.

It helps if you're happy to tinker as well.

Plus of course you have to be willing to create the models for things you want to print. In some cases it takes longer to draw than it would take to scratch build!

Re: Bob's M1070
 

That looks amazing, I can't wait for you to post more pics!!

Re: Bob's M1070
 

Wow, huge truck this is?