[Free Model #3] - Canon's Komatsu Loading Shovel

Discussion in 'Commercial & Civilian Vehicles' started by David H, Mar 23, 2008.

  1. David H

    David H Member

    Well I said I would join in.

    So far in 2008 I have been a bit pressed for time so not a lot of model building has gone on:

    * Work
    * Family
    * Lots of cycling to reduce my girth!

    But there's nothing like a deadline to focus ones mind so here we go.

    Available from the Canon site at:

    Canon 3D Papercraft - Wheel Loader
    Komatsu comic - 1.jpg

    Komatsu comic - 2.jpg

    Komatsu comic - 3.jpg

    Hope my little tweaks are within the rules and spirit of the building competition? Please don't refrain from letting me know!

    I doubt any of my local quarries will support one of these monsters (we don't mine uranium or diamonds in these parts) so I am off to surf the web in search of big, big loaders and get more inspired!

    Finally, come on the rest of you! Pick that little free model that's been lying all alone and neglected on your hard drive and get building!

  2. David H

    David H Member

    A Bank Holiday well spent doing what I wanted to do, the best. However, cycling into a blizzard in late March in Yorkshire was cold!

    Still playing with subassemblies, Canon are big on this tactic and to be honest in the past it has been a bit of a turn off. Their models all rely heavily on breaking down the project into little chunks (to help kids achieve a finished model?).

    I was wrong! Its a very good system and works well, the designers have put a lot of thought in.

    Today I clocked up 4 hours on the wheels. Canon suggest traditional tabbed construction. I did not like the look of this, so, I very carefully built some hubs from cereal box, they look a bit like bobbins.

    The tyres were easy to lap around these but looked a bit flat, So I added raised tread. I used copied tyre patterns and more cereal pack - I scanned and added a couple of extra treads to each tyre strip in Photohop to make enough treads for a complete tyre.

    I have never done tyre treads before but have seen it carried out with aplomb here and on other sites. While its not as bad as rigging cannon it is a dull, dull task, it helps if there is a good show on the radio and it's snowing outside. Oh it uses a lot of PVA.

    Komatsu comic - 4.jpg

    Unfortunately I have a business trip coming up this week so I don't think I will get much further until the weekend. That deadline is ticking...

  3. Lex

    Lex Dollmaker

    Clean cut and nice edge colouring!!
  4. BARX2

    BARX2 Member

    Excellent work! I hope to build that shovel myself someday and I'm glad you suggested laminating the arms to give it a more scale appearance. I'm sure it's a lot sturdier, too!
  5. David H

    David H Member

    A quick extra on the laminating.

    I laminated "outward" so the gap between arms stayed the correct width for part 16. Luckily Keisuki Saka, the designer, made the pivots on the front truck wide enough to take this huge increase in arm thickness...

    I am thinking about beefing up the bucket too. My experience with large excavators is that they are generally made from 50mm, 75mm and thicker steel plates, so 160gsm will not do! Mud-guards etc. are generally just mild steel so thin card is ideal.

  6. sjsquirrel

    sjsquirrel Member


    Looks great so far David.

    I love what you did with the wheels. I also want to build this loader and don't care for the flat look of the wheels either, so it's great to see how they turned out. Now I know it will be worth the extra effort when I build my own.

    Keep up the great work.

  7. David H

    David H Member

    Hi guys, no progress but some pictures I took after my last post was made.

    I just had to offer up the various components for a check on their general arrangement and fit.

    Komatsu comic - 5.jpg

    Thanks for the kind words on the wheels / tyres a you can see they are not as perfect as my earlier pictures suggest. I reckon each wheel ha taken about 80 minutes so far :eek: and then there's the painting, hubs to fit and the mounting.

    Fingers crossed that my travels tomorrow may allow me to check some details on a real shovel.

  8. modelperry

    modelperry Member

    Nice looking build so far. I have this in my "to be built" pile as well. One suggestion though: The tires are directional and should have the chevron patterns pointed the other way around (just swap the right and left sides).:thumb:

    Looking forward to your next installment.

  9. David H

    David H Member

    Thanks Greg,

    When the final fixing and fettling time comes I will endeavour to get the treads the right way around.

  10. Lex

    Lex Dollmaker

    Second time I looked... Holy, I love those tyres!! A really great build so far!!
  11. cgutzmer

    cgutzmer Guest

    yes indeed! very realistic and very clean build. Thanks for sharing!
  12. exzealot

    exzealot Member


    Very COOL model. I like how you did the tires! It makes all the difference.

  13. David H

    David H Member

    Not too many words.

    I should remark that so far it has all gone together very accurately and straight.
    Komatsu comic - 6.jpg

    Komatsu comic - 7.jpg

    The big hinge is a cylinder of rolled card rather than the odd hexagonal device supplied in the kit, I bushed the pivots with paper as well to beef them up a touch.

    Oh, thanks to Greg, I think I got my tyres correct this time?

  14. modelperry

    modelperry Member

    Yes the tires are right and look great as does the rest of your build.:thumb:

  15. David H

    David H Member

    Hi all,

    Just the quickest of updates. A lot of fiddling with little bits you can barely see like the side boxes that supports the deck and a last minute change of heart; the cab windows just could not remain unglazed.

    Komatsu comic - 8.jpg

    I am looking forward to fabricating the safety railings over the weekend and sorting out the final painting of the tyres.

  16. David H

    David H Member


    Hi Guys,

    Pictures not words.

    Railings are the printed parts laminated to 0.5mm card and painted with cyanoacrylate using a toilet tissue "brush" then painted dark grey with a touch of PVA added.

    I cut the centres from the rear view mirrors and put silver card in.

    Wheels are the same very dark grey.
    Komatsu comic - 09.jpg

    Komatsu comic - 10.jpg

    Komatsu comic - 11.jpg

  17. jaffro

    jaffro Long term member

    This is looking way better than I ever expected this model to look... a lot of the canon "work" vehicles tend to look a bit cartoonish with those unglazed windows, good idea to take them out, I'll be more inclined to build this one myself now that I've seen what can be done with a bit of extra effort.

    Can't wait to see more.
  18. David H

    David H Member

    Thanks, not much more to do now.

    I thought long and hard before I started (commuting has some uses after all) and considered several other models prior to selecting this one.

    I have resisted the temptation to add new detail and prefered to try and trick the eye with dark grey paint and by raising some detail in relief. This is why I like card modelling; you can go all the way and build all the details or just suggest them.

    To be sure the Komatsu model is a caricature but I think it captures the feel of the prototype very well. The omissions make quite a list but Mr Keisuke Saka has designed a little gem. It looks right and looks heavy.

    I am tempted to begin the dump truck but not inclined to build the 360 excavator. It looks to toy like. Or is that a challenge?

  19. Lex

    Lex Dollmaker

    Those railings are as good as they gets...!
  20. jaffro

    jaffro Long term member

    If you really want a challenge, try the crane truck or excavator by Chreiss / Nosports :D

    His models are high up on my build list, but they still scare me...

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