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Posted

For the pros!

I know, I used a truck suspension! That was accidental. I wanted to use the one of the belly dump I built last year which I had lengthened to a tri-axle suspension like the truck one but I hit next to it when programming the printer and printed the truck suspension instead!

I noticed that when it was finished and didn't want to waste it.

Don't know if I'll ever build another tri-axle so I used it.

Posted

I tried some plumbing but I don't know if it's good!

View from below:

IMG_20250321_154045_8782.jpg.e6a8414a5e4f3234b0b612db62d6fe7f.jpg

...and from above:

IMG_20250321_154222_3892.jpg.7d7635293e3546cfb31e3390a7b4f93c.jpg

Looks a bit chaotic but I think I'll leave it that way!

I added that little distributor box so I could attach the brake lines coming from the front!

  • Like 1
Posted

The plumbing looks great. Typically there's no airlines run to the brake assemblies. The chambers receive the air and push the slack adjusters to apply the brakes.

  • Like 1
Posted
1 hour ago, TopherMcGinnis said:

The plumbing looks great. Typically there's no airlines run to the brake assemblies. The chambers receive the air and push the slack adjusters to apply the brakes.

But doesn't the truck produce the high air pressure and then leads it via air line to the trailer brakes or did I misunderstand you? Sorry! 

  • Like 1
Posted

The brake chambers do the actuation, the air stops there. A bit of research on the interwebs will help you mate, and you'll be able to do it systematically. In the meantime, what you've done so far will add some good detail. 

  • Like 1
Posted

Here's a schematic of the air system on a truck. The primary system is for rear brakes only and uses green airlines. The secondary system feeds the front brakes and air operated items such as horns, seats and wipers in older rigs.

brake_10.jpg

Posted
2 hours ago, Rockford said:

The brake chambers do the actuation, the air stops there. A bit of research on the interwebs will help you mate, and you'll be able to do it systematically. In the meantime, what you've done so far will add some good detail. 

I was referring to the airlines going to the brakes themselves. 

Screenshot_20250323_195424_Chrome.jpg

  • Like 1
Posted

I corrected the plumbing! If I understood right it was just the lines to the brake drums that were wrong!

IMG_20250325_192427_795.jpg.afb975c54d8a001048dd008d3da99186.jpg

I also began printing the trailer parts:

IMG_20250325_154407_9612.jpg.80443be829aea9c721a4265f6118347f.jpg

  • Like 4
Posted (edited)

Pre assembly of the printed trailer parts:

IMG_20250327_144543_3042.jpg.bd69dbe5fb44fef01a3599b042f7a502.jpg

Mock-up of the pre-assembled components:

IMG_20250327_165640_5742.jpg.0c987fca1a2c55b532c01cc9b96a64ed.jpg

IMG_20250327_165650_5692.jpg.37a9870833bb230367982199d2136850.jpg

The white stuff is styrene sheet to stabilize.

I'll design further stabilizers for the rear part which is quite long for a free hanging component!

The complete front section will be printed this weekend!

Edited by Jürgen M.
  • Like 3
Posted

A little bit of progress:

The main body is assembled.

IMG_20250329_142146_6942.jpg.96a34d3cbd0b0851d536c41f0e72a672.jpg

This is a mock-up with the driving ramps and (not really) hitched to the Mack, which is still waiting for his hood to be finished!

It arrived a few days ago, just didn't have any time to do anything with it!

IMG_20250329_142401_2862.jpg.934a1c9c9bfb61a4651138f257822cf6.jpg

IMG_20250329_142355_0272.jpg.4d430e0ad13f2b48cff75e4b7e8b9678.jpg

At least I got the hood, the new grille, the back end and the ramps of the trailer primered!

IMG_20250329_151939_477.jpg.92cb45f4a70a6f6961228ecc61474383.jpg

Hood looks great! Thanks again very much to Bren who printed it on his resin printer for me. Big difference! 👍

Can't wait to finish it and mount it on the Mack! 

 

  • Like 2
Posted

The hood looks spectacular , and the trailer turned out really nice. This is really special. You made all of this yourself. Very cool. 

Posted

Thank you Gary and Jeff,

I'm glad it looks good to you! What I haven't been able to reproduce are several cabover and conventional cabs. I'm still practicing things I saw on turorials but I'm afraid I'm a bit too impatient! Just won't work yet. But I won't give up.

  • Like 2
Posted

The ramps are almost all printed. Still missing the small ones at the front of the axles.

IMG_20250330_114128_043.jpg.2ba43a72eb239dbaead82bbf3c412358.jpg

I'll fill up the rest with perforated plates. I was thinking about wooden inlays first but the I thought metal might look better! (Of course not real metal plates, Just printed and painted to look like metal).

  • Like 2
Posted

This is just getting better and better. The trailer turned out just about perfect  I really like the perforated plates. The hood will finish the Superliner perfectly. Good job, can't wait to see what the next cool project is going to be. ….

  • Like 1
Posted

Thanks Jeff!

There's still a lot to do though. 

Just put the second layer of base coat on the hood! The grille needs a longer time to cure! 

The trailer needs to be primered and painted, a couple of parts need to be printed. 

Can't say how long it will take. Depends on how much other work I have!

  • Like 1
Posted

Jürgen, the hood you designed looks amazing as a resin print.  Further evidence of your good designs - very nice!

  • Like 2
Posted

Thanks Guys! Nice of you to say that. 

I like it too. If everything goes well you'll see it on the truck in a few days! 👍

  • Like 2
Posted

Got the trailer primered:

IMG_20250401_072446_7832.jpg.c11b2758af2872bdb5122ebeb8e1b787.jpg

The outside rails will be painted, also the ramps (not shown).

Rest stays like it is! The perforated plates I made will be painted in aluminium or iron metallic!

  • Like 2

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