Scania T143H 6x2 tipper conversion

[JeroenS]

I felt like working on the tipper today. I have plowed through my reference pics endlessly, never deciding on any particular design. And also, always realizing that this way, it will never get done. So I browsed one more time and went with something I liked. It's a medium height bin but it has a nice design. 

 

I'm starting with the sides. My "The chopper" is ideal for cutting same sized pieces. 

 

 

The vertical supports need an angle, I've made one piece that I use as a template so all of them are as similar as I can get them. 

 

 

Here's one side halfway done. 

 

 

 And this is why the angle is needed. 

 

 

The inner structure of a bin like this almost always has angled (sloping?) corners so that material doesn't get stuck. 

 

 

Looks pretty good. One more to make. 

 

 

 

 

 

[JeroenS]

1 hour ago, JeroenS said:

One more to make. 

Oh bugger me, I've made them the same... Sure, looks good like this, but that's not the way it should be. 

 

 

One should be pointing the other way. Luckily, it only took some quick repairs to turn it around. 

 

 

With some extra sanding and filling you'll never notice. 

 

 

Ready. 

 

 

Rear wall and floor next, which will give us the basic shape. 

 

 

 

 

[JeroenS]

Alright, a decent result for a day of building, I'm happy with it. 

 

 

 

 

Lots more to do, but there's a good base. 

[Stickframe]

HI Jeroen,

 

this is quite a build, and I have liked seeing the various changes in direction you've made, and been able to make them work so well.  I admire your bravery on cutting the cab up! nicely done.  I had to laugh when I saw the problem you ran into on the tipper body - not at you or your mistake, but because I've done the same more than once!  It's such a simple an obvious mistake, yet it seems to slip in just when it looks like you're in the clear!   

 

Cheers

Nick 

[JeroenS]

6 hours ago, Stickframe said:

HI Jeroen,

 

this is quite a build, and I have liked seeing the various changes in direction you've made, and been able to make them work so well.  I admire your bravery on cutting the cab up! nicely done.  I had to laugh when I saw the problem you ran into on the tipper body - not at you or your mistake, but because I've done the same more than once!  It's such a simple an obvious mistake, yet it seems to slip in just when it looks like you're in the clear!   

 

Cheers

Nick 

Thanks Nick. Seems like (for me at least) there's only 2 modes of modelling... too much thinking (nothing gets done) or not enough (stuff gets done but repairs need to be made 🙂)

[dnl42]

11 minutes ago, JeroenS said:

Seems like (for me at least) there's only 2 modes of modelling... too much thinking (nothing gets done) or not enough (stuff gets done but repairs need to be made 🙂)

This...

[JeroenS]

I've made start on the subframe. 

 

 

Which should sit like this. There will be a hydraulic tank somewhere in the front portion, and also the lift cylinder in the back portion between the axles.

 

 

And a start on the frame of the tipper body underside.

 

 

There should be a whole lot more beams under there, but at least now it's at the correct height. 

 

 

The lift axle fits so that's good. Card will be fitted at the front of the tipper body, to make something I don't know what to call, which will protect the cab and exhaust and such. The tipper body and subframe will all be painted light gray. At least, that's what I'm thinking now. It fits the red chassis and the blue-ish cab. I do remember my wife came up with a name for the particular colour, it's somewhere earlier in the thread, but since I'm a guy I can't for the life of me remember it 😆

 

[JeroenS]

Cab protector in place. 

 

 

I think I'll shorten the exhaust stack a little bit, it's not touching but it will look better. 

 

 

 

[Spiny]

ALways annoying when something like that exhaust happens. Even more annoying when you have such a good finish as here. On the bright side though, you do have that 'weld line' at the base of the tailpipe to cut to you it should be easier to line up the two cut ends with less concern about getting an exact match.

 

[JeroenS]

13 hours ago, Spiny said:

ALways annoying when something like that exhaust happens. Even more annoying when you have such a good finish as here. On the bright side though, you do have that 'weld line' at the base of the tailpipe to cut to you it should be easier to line up the two cut ends with less concern about getting an exact match.

 

Hardly annoying, it's a given that when you start cutting stuff up, and bringing out the white plastic, you'll be tweaking stuff everywhere all the time. Anyway, as you're about to see the problem has sorted itself. 

 

I started on the hinges at the back of the tipper. A bit of eyeballing and dry fitting, and we have this. 

 

 

 

Plenty of movement there. 

 

 

With this sorted, we have a final position of the tipper on the chassis. 

 

 

As it turns out, the exhaust is fine. 

 

 

There is some tweaking going on however. I don't know how it came about, but for some reason the tipper body is 1 mm shorter on one side. This wasn't really a problem as it's hardly noticeable, except that the gap between cab roof and tipper body was uneven. So I had to glue some wedge shaped pieces of strip on the top there, to even things out.

 

 

That works fine, these additions are drying and I'll blend them in later. 

[JeroenS]

Final update for the year, tail door and hinges. 

 

 

 

 

Some trimming is needed when the glue has fully set, but this is the idea. 

 

 

See you next year 🙂 

[Toftdale]

Beautiful work - Andy 

[JeroenS]

Hi modelling people, hope you all had a great NYE, here's to lots of nice builds and growing of the stash in 2024 🙂 

 

As for me, the missus and I went to a big party here in town and we literally danced the night away, just like old times. Man, the legs were even a bit sore on New Year's Day 

 

Anyway, back to business, in this case, tipping the tipper. There's usually a big telescoping ram, either near the rear of the body or at the front. For the rear, you need a lot of short telescoping pieces, where there are larger pieces if you choose the front option. I came across a design I liked for a front mounted ram. I saw only one photo of this design and I always like the odd one out. OK, I didn't search the entire internet, of course, and also, not all tippers are shown up in the air so the ram itself is not always visible and it might be more common but... what do I know, I just chose this one. 

 

It looks like this. 

 

 

The upper cylinder tilts as the tipper goes up. I think it looks pretty cool. 

 

I started making a prototype. I didn't have all the tube I wanted, but for the prototype it didn't really matter. Here are the pieces I came up with. 

 

 

The small center rod acts as a guide, I centered it in the largest cylinder. 

 

 

The middle and lower pieces of the ram. 

 

 

So now it looks like this. It's a little bit too long, I'll fix that in the definitive version. I though I could let it drop into the chassis a little bit but what do you know, there's a crossmember there which can't be removed. 

 

 

It doesn't hold itself up that well but I've made it so that each piece raises the next one. You can see the tilting works. 

 

 

Final position. 

 

 

I need more tube so I can make shorter pieces, I don't have enough of the correct sizes that will fit eachother, but I think I can make a 2.0 version of this. 

 

 

 

[mbdesignart]

To save a lot of work, not that you shy away from making parts from scratch, a metal telescopic pointer would be an alternative for the ram tube. Also saves on chrome painting.

And HNY2U.

[JeroenS]

32 minutes ago, mbdesignart said:

To save a lot of work, not that you shy away from making parts from scratch, a metal telescopic pointer would be an alternative for the ram tube. Also saves on chrome painting.

And HNY2U.

Thanks, I'll look into that!

 

Edit: I bought 2 telescopic magnet pens for under €10, certainly cheaper than the Evergreen tube! Thanks, I hadn't thought of that 🙂 

[JeroenS]

I spent a good bit of time today making the closing mechanism for the tail door, creating a few different versions before settling on this one. 

 

 

It opens and closes so that's nice. 

 

 

 

I'll go around the whole body once more, add a bit of filler here and there, make it a bit nicer. My telescopic pens were supposed to arrive yesterday but they're not here yet, I'm curious to see how I can get them to work for this project. 

[Stickframe]

Those gate latches look great.  They are very clean, and operable, which is pretty cool in and of itself!   

 

Getting the hydraulics to telescope and pivot! wow - quite a feat!  Nice!

 

Cheers

Nick 

[Spiny]

That's certainly a nice bit of engineering on those hinges - not something I can really be bothered to do as I get enough engineering at work! Keep it up!

 

[Pete in Lincs]

Lots of likes from me as I seem to have missed some of your posts. Great scratchbuilding as always. I hope the pens turned up.

[JeroenS]

15 minutes ago, Pete in Lincs said:

Lots of likes from me as I seem to have missed some of your posts. Great scratchbuilding as always. I hope the pens turned up.

Thanks Pete. Pens still in transit, apparently. They should arrive via snail mail, it's not what it used to be.

[JeroenS]

The big cylinder needs a hydraulic tank. I wanted to make one which would fit in between the chassis, and I wanted one that would be a little different than just a square box. Normally, I would cut all the separate panels and glue them, but I thought I could maybe make it like a folding box. 

 

 

I used 1 mm (.040'') card which is nice and thick because you need some extra material for sanding. I scored the lines and folded the box, glued it onto a bottom plate. 

 

It sort of worked, you have to be careful not to fold too many times or the join will come loose. And then, you have to fill the corners and gaps with 1x1 strip and some other pieces. I don't know if I'll do it like this again next time, but it was a nice experiment. Anyway, I had this ugly contraption last night, and I let it dry solid overnight. 

 

 

Now you have enough material to sand it to shape. When it's dry the box is very solid. Sanding goes quite fast actually. I make my own sanding sticks by glueing strips of sandpaper on a large paint stirrer, works very well to take off the bulk of the excess material. 

 

 

After which you can go in and use regular, softer, sticks and some paper. It looks pretty good now, a little filler here and there, and I'll square off the edges a little bit more with the inflexible wooden sanding stick. You can lay the stick down and move the box over the flat surface, it's easier to hold an angle.

 

 

It just needs some brackets, inlet and outlet and filler cap. 

[JeroenS]

Right, to get back to the telescopic pointer, or rather the telescopic magnetic pen, I purchased at @mbdesignart's suggestion.

 

It seemed a good idea to buy 2 of them, since I was fairly sure I would destroy one of them in the process. This is the complete product: 

 

 

Pretty nice actually, I wish I'd bought one more to keep in my toolbox. 

 

Now, I couldn't just somehow incorporate the entire pen into the model, it's still way too long for what I needed, even with all the parts in their initial position. So I had to figure out how to make it shorter, but first I had to figure out what such a thing actually looks like on the inside. I don't know if you've ever taken one of these things apart but I certainly hadn't. 

 

So for the first one, I took the saw and cut it fairly close to the top. Turns out, I cut through the entire mechanism which was rendered quite useless right away. Like I said, I knew I would destroy one. I was curious to see how it all worked. The tubes pull out the next one in size, and hold them in place as well. 

 

This is such a tube, there are notches on both sides of it, and 2 thin pieces are wrapped around it, fitting into the notches.

 

 

 

And this is how it's held in place in the next biggest piece of tube. Normally, the top edge is tapered so you wouldn't be able to see this come out, but I ended up cutting that side as well. 

 

 

This is what it looks like from the bottom. The notched pieces of tube are actually folded inwards and create a stop for the smaller tube. Pretty nifty.

 

 

In hindsight, I could have used this first pen, but I didn't know that at the time. I made a second cut on this one, near the other end. I just ended up with a lot of useless pieces of tube (the shorter ones are left from the second, better, attempt). Well, I say useless, but I'm sure they'll come in handy at some point, the material is very nice actually. 

 

 

After having thought about it a couple of days (not the entire time, I just mean it was put on the back burner while I did my real work) I had my second go. 

 

This time I cut to the length I thought would need, as seen from the top. This part is what I don't need, but it's what I photographed 

 

 

The inner piece is a magnetic rod. And yes, I cut a slice off the side of my finger, but that was while also slicing food in a little bit of a hurry. Not a good idea, it was bleeding forever. It's a flat spot now, but it will grow back nice and round again. Ask me how I know.

 

 

I ended up using the largest 4 pieces. Because I cut off the bottom, I was left with the nicely formed upper pieces. However, it means I also didn't have the mechanism as shown before. I would have had to shorten every tube by taking out a piece from the middle if I'd wanted both.... 

 

But, the pieces of tube didn't hold eachother in place or anything, so I had to think of something. In the end I took small pliers around the bottom of the tubes, like this, bending the bottom outwards a tiny bit.

 

 

With a bit of tweaking, this creates enough friction to do the telescoping thing, and also hold the extracted pieces in place. 

 

 

 

Now I need to find a way to secure the whole thing on both ends. Anyway, I cleared this hurdle, so on we go. 

[Neddy]

Fascinating!  Great implementation of Matt's original (and inspired) idea.

[dnl42]

That's excellent work! I like it. 

[Toftdale]

Thats the perfect solution to the ram and will compliment the rest of your very fine work - Andy