Tractor-cardboarder

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About: I wb in Belgorod Russia. In 2002 I graduated from Belgorod STU mechanical engineering and CAD. In 2004 I'v defended the dissertation "CAD for ball mill". I am a lecturer in BSTU. My hobby is 3D and...

I like to use paper to make models of different types of technical units (especially war machines). So this contest is a real challenge for me. My new object is absolutely civil facility, but it has caterpillars ;-)

And we don't need any glue in this project.

Step 1: Tools and Materials

  • cardboard sheets (4 mm width);
  • ruler;
  • pencil;
  • paper knife;
  • awl;
  • needle file (small rasp);
  • scissors;
  • PC, printer and 5 A4 sheets to print base drawings;
  • old wooden board (~ A3 size) as a work plane for cutting operations.

Step 2: Printing Base Drawings

It is possible to draw all sketches we need directly on cardboard sheets. But more convenient way (as I think) is to print all drawings on plain paper and then transfer it to cardboard using awl.

So you need to have 5 drawing: Bumper_Pipe_Trucks, Cabin, Engine, Frame, Wheels_Axes.

Download links for drawings (in pdf): variant 1(google drive), variant 2 (yandex drive)

Step 3: Transferring Drawings to a Cardboard

Use the next sequence to transfer all the drawings on cardboard : 1) put the cardboard on the old wooden board; 2) put the drawing on cardboard; 3) make holes in key vertexes through the paper using awl; 4) remove the paper drawing from the cardboard; 5) connect holes on the cardboard using ruler and pencil.

Step 4: Cut Parts Out of the Cardboard

Step 5: 'Engine' Bending

I strongly recommend to press backside of the cardboard along the fold line before bending.

Step 6: 'Engine' and 'Frame' Connection

Step 7: 'Cabin' Bending

Step 8: 'Cabin' and 'Frame' Connection

Be attentive that you need to bend engine part a bit to insert lapels on the backside of 'Cabin'.

Step 9: 'Axes' and 'Engine' Connection

Step 10: 'Wheels' and 'Axes' Connection

The distance between wheels on each side will be adjusted later.

Step 11: 'Tracks' Bending

Step 12: 'Trucks' and 'Wheels' Connection

Step 13: 'Bumper' Bending

Step 14: 'Bumper' and 'Engine' Connection

Step 15: 'Pipe' End 'Engine' Connection

Step 16: Tractor-cardboarder Is Ready!

Cardboard Challenge

Second Prize in the
Cardboard Challenge

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7 Discussions

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CraftAndu

4 months ago

This is one awesome machine!

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Tura Street

4 months ago

This is amazing! I'm definitely going to have to try this. Thanks for sharing!

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seamster

4 months ago

This is incredibly well documented. Great little model!

The patterns look excellent, as well as the assembly images. Did you design all of this from scratch? It's super impressive! : )

4 replies
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nml235lseamster

Reply 4 months ago

Thanks for your comment! For inspiration I have used the image of soviet T-150 tractor from the polytechnic dictionary (1989). i have constructed this project in Autodesk Inventor - my favorite program (I used sheet modelling environment with unfolding features).

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seamsternml235l

Reply 4 months ago

Nice. I need to try this software for the same type of projects. I've been working on a cardboard model car recently, and it's been a lot of fun.. but I'm just doing it by trial and error making up patterns with a pencil and ruler! : )

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