Wagon chassis test

[aleopardstail]

Mark 4! (Partial success)

mixed results

if anyone wondered, this is what a failed print looks like, issue being inadequate supports (operator error on my part)

the missing corner is where I aborted the print early, the mangled bit is early on and the good bit is later in the process

plus sides though
- wider ironwork printed well and survived support removal
- brake rigging actually printed
- wagon upper works scale out as intended though some refinement will be needed for the finished thing - it was added here to add some rigidity to the chassis
- apparently axlebox spacing is close to correct

refinements
- axle box holes still need enlarging further (and to be able to fully test the positioning)
- temp upper works needs some bracing adding even if only crude to help it hold its shape

plus of course better supports needed

[aleopardstail]

Mark 5! (Very nearly there!)

5th generation, basically the same as 4th, better supported and the upper works slightly more robust though still crude

didn't print perfectly, solebar is a bit too thin and thus not straight, likewise a few other bits need to be a bit stronger, and still a few support issues on one corner

otherwise pretty good, this time she took wheel bearings nicely and the spacing seems spot on. W Irons could still do with a touch more strengthening

also brake rigging needs shifting outboard slightly, like quarter of a millimetre as its just rubbing on the wheel flange - even so about as free rolling as the bachmann wagon, should be spot on with a few tweaks

height is off by about 1mm, I did suspect this was a bit high, next one will one a tad lower but will gain more detailing, as well as slightly more accurate measurements (some of this is eyeballed). will also spend a bit of time pondering couplers as I'd like to do actual haulage testing with the next one if it comes out ok.

a tad light, space on the underside to add ballast if needed and of course could be given a coal load anyway

all in, for a few days work not that bad, and the best bit is - this prints as a single part, zero glue assembly needed here so far. it may be worth splitting chassis and body to print but so far its working

[Phred]

aleopardstail wrote:
if anyone wondered, this is what a failed print looks like

Don't throw it away! Rust it, weather it, plant some weeds around it - brilliant background junk!

[aleopardstail]

aleopardstail wrote:
if anyone wondered, this is what a failed print looks like

Don't throw it away! Rust it, weather it, plant some weeds around it - brilliant background junk!

crash debris.. never actually thought of that, stick it at the bottom of an embankment, overgrown..

I may try that

[Mountain]

Hey! The results are visually amazing! Yes, a few adjustments but wow! It is really is GOOD!
I can see you competing with the likes of the RTR manufactures soon with several 3D printers on the go keeping up with orders!