42043 Caterham 7




This is my attempt at a Caterham Super 7 as an alternate model from set 42043. It's my first MOC and there are many issues - not least, choosing to restrict myself to the 42043 set for this model!

The Good:
Dimensions are about right; not bad looking.
Bi-Fold Bonnet "locks" open
Fake V6 Engine driven by rear wheels
Famous "7" grille and iconic double wishbone suspension
Full PDF instructions (though see caveats below)

The Bad:
Whilst the front wheels move and are Ackerman linked there is no steering function*
Wanted a De Dion tube for the rear suspension but not enough universal joints! (Fell back to a pendular axle**)
No power functions
I couldn't get "call-outs" to work in my instructions (possibly due to Linux software versions)
When joining the rear axle to the main chassis there are a couple of bushes that need to go onto the drive shaft.
No BOM in the instructions but the LDR file and partlist here should be spot on - if you have the 42043 kit you're definitely OK.

Despite the shortcomings I had a lot of fun designing this model and learned a lot in the process. I used LDCad to create the model for the instructions and I can't praise that software enough - if you haven't tried it I would strongly recommend giving it a go. The revisions to create the instructions were at times a real pain and I almost gave up - hence why they're not 100% perfect. Does everyone make the "Light Bluish Grey" mistake first time round?

* There is no steering rack in the 42043 kit. I could have improvised something here but space is cramped around the busy front suspension (perhaps for a later update).
** Pendular axle lifted straight from Paweł "Sariel" Kmieć's excellent book: "The Unofficial LEGO Technic Builder's Guide"
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Name 42043 Caterham 7
Designer Snospar
Designed 2017
Inventory 993 parts
Theme Technic > Model > Race
Alternate Build of 42043-1 Mercedes Benz Arocs 3245
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Help Guide - BI File Types

This MOC also has a 3D digital file available (eg LDD, MPD, etc): 3D Model