An interesting commission - Maultier panzerwerfer 42

This section is for builds that are not strictly Tamiya or Heng Long. For instance, replacing the electronics from a WSN or Matorro, or even a scratch-build.

Postby AlwynTurner » Thu Jan 10, 2019 8:00 pm

Well that's the drive system sorted, the motor housing printed and installed

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The drive shaft isn't 100% straight but close enough.

Now on to the suspension

Alwyn :thumbup: :wave:
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Postby Will01Capri » Thu Jan 10, 2019 8:19 pm

Cool suspension setup

Have you got all the bearings on those axles? Picture looks like you only got 2, but you need 4.


As for motor what you gonna use?
I working on a few twin mount at moment. But easily convert it over to single. I have different size motors and speeds and voltages for playing around with. I reckon a geared 25mm motor would work great and give you loads of torque
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Postby AlwynTurner » Thu Jan 10, 2019 8:55 pm

Hi Will, I didn't have space for the other 2 bearings as I had to steal the bearing space to fit the ends of the hex nuts. Can you point me at a suitable motor please, I can sort the housing out to suit my limited space. The WTP motor won't be powerful enough and the gearbox won't take it I don't think.

Thanks
Alwyn :thumbup: :wave:
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Postby AlwynTurner » Fri Jan 11, 2019 7:06 pm

Well a tough day at the office! 8O 8O

I printed off the rest of the components for the suspension and did a trial fit. The suspension units were too big and didn't fit. So no problem thought I, just move the drive shaft and the idler out a bit to make more space. DUH, the tracks were too short and I didn't have spare track links. :{ :{

Next plan, make the components smaller to fit, so I trimmed off a few mms from the idler and the road wheels, and suddenly realised I could also trim a few mms off the swing arms because the wheels were smaller - success, in fact it should be possible to take out a link from the track, but I'll leave that to Herman when he does his build giving him a couple of spare track links.

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and here's the pile of scrap components from a very 'interesting' day as per the ancient Chinese curse!

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Alls well that ends well. Just have to print off the components for the other side and build the spring units for the suspension, and revisit the front suspension and steering units with the new metal components.

Alwyn :thumbup: :wave:
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Postby AlwynTurner » Fri Jan 11, 2019 10:01 pm

Phew, printing all done! I took a link out and it is sitting just right. Just the springs and the front suspension to do tomorrow.
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and with the motor in position
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It's been a busy day but I'm really pleased with the end result. :D :D

Alwyn :thumbup: :wave:
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Postby midlife306 » Fri Jan 11, 2019 10:03 pm

Looks awesome Alwyn


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Postby HERMAN BIX » Fri Jan 11, 2019 11:42 pm

What’s to be said !!!?
The innovation and determination is mind blowing.
Even the consideration for the need for a spare track link, just astounding.

The radio system? What’s a recommended set up?
Obviously there’s no ‘42 sound set laying around but one of the “you-beaut “ systems might work.
Be a shame not to have sound at all.

With the rear running gear, would it be wise to get spare sprockets printed?
Just in case.
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Postby AlwynTurner » Sat Jan 12, 2019 10:30 am

Hi Herman, thanks for the good words. Last night I discovered that Asiatam have lots of spares for their halftrack
https://www.asiatam.de/index.php?cat=c9 ... -1-16.html
This includes tyres, wheels, complete front suspension, sprockets, even a drive axle and a complete running chassis (if you have 310 euros to spare) although I think my chassis and suspension is a little better than theirs although their scaling is more accurate.

At least spares for tracks and sprockets are readily available Herman, although I will print off a spare set of brake drums as these are the only bits of the transmission that aren't bulletproof.

For the model you will need a four or six channel tx/rx, an ECU
Here is an example although there are lots - perhaps someone can recommend one?
https://www.ebay.co.uk/itm/Turnigy-20A- ... rk:24:pf:0

For sound there's the Dasmicro or equivalent
https://www.ebay.co.uk/itm/RC-Car-Truck ... ctupt=true

There's enough there to keep you busy, not to mentionbuilding the upper hull. :D :D

If you go with at least a 4 channel rx you will be able to have a rotate and elevate on the rocket launcher. :D :thumbup:

Alwyn :thumbup: :wave:
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Postby AlwynTurner » Sat Jan 12, 2019 11:13 am

Thanks Tiger that does look a better (and cheaper) option - there you go Herman. Can someone recommend a good sound unit to go with it?

Alwyn
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Postby AlwynTurner » Sat Jan 12, 2019 11:46 am

An update on the sound system, there's this
https://www.ebay.co.uk/itm/DasMikro-Pro ... ctupt=true

Finished the first suspension unit
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I think it looks better than the Asiatam unit but I'm prejudiced :D :/

Alwyn :thumbup: :wave:
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Postby midlife306 » Sat Jan 12, 2019 12:13 pm

Hi Alwyn, I think that’s the sound unit that Gary raves about
Cheers
Wayne


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Postby HERMAN BIX » Sat Jan 12, 2019 12:50 pm

Suffren-ass !!..........all this is pointing to a better than expected outcome.
Quizz ?
Will the sound module work with that speed controller ?
And, for some reason when I look at a wheeled vehicle-even if it has tracks on the back, I think steering wheel transmitter.......... :problem: (perhaps from the other life ago when I raced 1/10th off road cars.)

6 channel transmitter & receiver= no problem.
Will they all work together though ?
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Postby AlwynTurner » Sat Jan 12, 2019 12:58 pm

Hi Herman, I'm no sort of an expert on sound boards, perhaps if you message Max-u52, he seems to have done quite a bit of work on these. A 6 channel tx/rx should work fine with both the esc and the sound module.

Alwyn :thumbup: :wave:
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Postby AlwynTurner » Sat Jan 12, 2019 2:42 pm

Well that's the suspension finished. The chassis was sitting tail-down instead of tail-up, so I reprinted the suspension 5mm higher and it's fixed.
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Just got the steering/front suspension to update and then it's good to go to Oz.

Alwyn :thumbup: :wave:
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Postby AlwynTurner » Sat Jan 12, 2019 6:33 pm

It's a wrap!

The old and new steering/front suspension
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and there she is. Next step is disassembly, very careful packing, and despatch to the antipodes! :D :D Phew it fought to the end - I even had to design a custom servo arm. :crazy: 8O

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Alwyn :thumbup: :wave:
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Postby midlife306 » Sat Jan 12, 2019 8:29 pm

Fantastic job Alwyn


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Postby Son of a gun-ner » Sat Jan 12, 2019 10:26 pm

Yes, superb Alwyn :clap: :clap:
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Postby HERMAN BIX » Sun Jan 13, 2019 1:01 am

But I liked the white front suspension!!!!
So much for a simple running gear knock-up!!
Can you give me the basic dimensions please Mr Turner. It might be ok to send in a small box rather than take it apart ?
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Postby AlwynTurner » Sun Jan 13, 2019 10:47 am

Hi Herman, the box is18cm x 14cm x 38cm, and the plan is just to remove the tracks, idlers and suspension units and leave the rest as one unit to ease reassembly whilst keeping the bits that could break or cause breakage separately wrapped in bubble wrap. I'm also sending the blueprints.

Alwyn :thumbup: :wave:
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