Mack B75

[Kit Fisto]

Hi guys! Here is my latest model, Mack B75 in scale ~1:17.5.Chromed parts arrived yesterday, so now I can call it`s finished :)

WIP topic: http://www.eurobrick...opic=119378&hl=

Some info :

PF L-motor drive geared down 12:24

PF L-motor steering via mini linear actuator

Ackerman steering geometry

Full suspension(credits for rear axles go to 2Legoornot2Lego)

Front PF LED lights

And photos:

Mack B-75 by DB_Kit Fisto, on Flickr

3 by DB_Kit Fisto, on Flickr

4 by DB_Kit Fisto, on Flickr

11 by DB_Kit Fisto, on Flickr

More photos in my Flickr album: https://www.flickr.c...157665289567976

Edited March 2, 2016 by Kit Fisto

[darsedz]

Looks great, nice to see some classic track :)

what about some trailers, for it?

[lcvisser]

Very very nice, well done!

[Kit Fisto]

Thanks

No trailer, cause I actually find trailers quite boring to build Just my opininon ofcourse :)

[Zerobricks]

Looks very realistic. Too bad about the PF components in the cab where seats should be...

[Kit Fisto]

Looks very realistic. Too bad about the PF components in the cab where seats should be...

Well, I think I went for a compromiss with one side being taken by battery box and IR-receiver and one side having interrior.

9 by DB_Kit Fisto, on Flickr

It seems rather minimalistic, but it`s just what the real one has in the cab:

By the way, here is the source I used to create the model : http://forum.autoins...pic.php?id=2187

The main goal was to hide ALL pf elemnets inside the cab and the hood, so BB behind the cab wasn`t an option for me.

Thanks for the kind words!

Edited March 2, 2016 by Kit Fisto

[Edwin Korstanje]

Very great truck and the chroome parts look superB on it

[timslegos]

Great looking truck. The attention to detail is wonderful. How did you make the stripe on the fuel tanks?

[motomatt]

Thanks

No trailer, cause I actually find trailers quite boring to build Just my opininon ofcourse :)

Great truck... but a truck without a trailer is like Santa's reindeer with no sleigh :-)

[agrof]

Beautiful MOC, I love these old trucks. :thumbup:

Good quality pictures as well.

Do You plan to make video?

[Kit Fisto]

Thanks all!

About the stripes on the tanks:

It`s an aluminium band which is used for thermal insulation works.

It looks like this:

You only need to cut the size you want and the sticker is ready!) (quote from wip topic)

As fot the video, I`m not sure it`s needed that much, but I`ll try to do something when I have some spare time from studying...

Edited March 2, 2016 by Kit Fisto

[Kit Fisto]

A short video to show the speed and leds :)

https://www.youtube....Pgw6EDF0

Edited March 3, 2016 by Kit Fisto

[agrof]

Well, it moves like it should, great! Can You please take some pictures under the hood, to see the mechanics, drivetrain?

[Kit Fisto]

Sure!

Drivetrain is pretty simple:

The motor is connected to U-joint which goes through the cab.

Uou can see the rest of the drivetrain in this picture:

7 by DB_Kit Fisto, on Flickr

As for the steering, just behind chrome 6 x 6 assembly with wires attachment you can notice black 20T gear.L-motor under the cab -> 12/20 reduction -> CV-joint to mini LA installed on the axle.

4 by DB_Kit Fisto, on Flickr

Edited March 3, 2016 by Kit Fisto

[agrof]

Thank You for the explanation. It is still great!

[2LegoOrNot2Lego...]

This is just amazing!!! Excellent build as I already mentioned in you WIP topic on this... So good looking, lovely colors and the chrome really finishes this build...so well done!!!

Also do I like to mention that the pictures are so cool, excellent!!! :thumbup: :wub:

BTW the suspension looks pretty familiar...haha... :laugh:

Edited March 3, 2016 by 2LegoOrNot2Lego...

[Kit Fisto]

Thanks a lot!

Ofcoure it does...) But the front axle is completely redesigned for mini LA.

[Sylvian]

I really like the fact it doesnt have a sleepercab, but still has Pf.. it looks very sexy

Edited March 4, 2016 by Sylvian

[2LegoOrNot2Lego...]

But the front axle is completely redesigned for mini LA.

I see, that is a great approach. You did not prefer the Servo motor? Nice to have a mini LA do the job!!! :thumbup:

[Kit Fisto]

I just couldn`t fit it in there:D

Servo requires some gearing for which I had absolutely no space.In fact all the steering system is placed between two tanks. :classic:This is also a reason for a little "overkill" : m-motor would have worked just fine, but L-motor was much easier to attach.

Edited March 8, 2016 by Kit Fisto

[nerdsforprez]

This really is a great build. Thanks for sharing. Sometimes I wish I had more patience for concerning myself with looks. This is beautiful.

One thing.....and this is by no means a criticism, but how accurate is the scaling? It looks a little long. That could just be me or the pics.

But really..... Great job and great post

[Kit Fisto]

Thanks a lot!

I think it`s as long as it shoukd be(yeah, it`s really long ):

Same proportion in my model.

Edited March 8, 2016 by Kit Fisto

[nerdsforprez]

Yup. Scaling is perfect.

[2LegoOrNot2Lego...]

I just couldn`t fit it in there:D

Servo requires some gearing for which I had absolutely no space.In fact all the steering system is placed between two tanks. :classic:This is also a reason for a little "overkill" : m-motor would have worked just fine, but L-motor was much easier to attach.

Okay, I see...but why would you want to give the Servo some gearing? That doesn't make sense to me...sorry... :classic: I think any other solution then the Servo requires gearing and the Servo doesn't...where am I missing the picture... Just curious...

[Kit Fisto]

Okay, I see...but why would you want to give the Servo some gearing? That doesn't make sense to me...sorry... :classic: I think any other solution then the Servo requires gearing and the Servo doesn't...where am I missing the picture... Just curious...

Well, I tried servo when I was building me previous Kamaz truck (which had 100% yours front axle) and I remember it has some problems - direct drive from servo to 3L beam (what was connected to flex axle) didn`t work well, so I suppose that the way you use servo is different :) Like 14/14 corner gearing etc