Another 3D printed wagon - or THREE
Posted: Fri Mar 08, 2019 9:34 am
Following my inadvertant misleading on how much of the wagons were actually printed, on a previous thread, plus a couple of exchanges with Jake on his excellent printed wagon bodies, I decided it was time to really get to grips with wagon printing myself.
The chassis I was pretty satisfied with on my previous builds ( although I have tweaked the design by adding angle brackets between the headstocks and solebars, plus bolts ), but bodies have always given me problems. It took me 4 attempts before I managed to get the machine settings right to give me something I'm happy with.
The following pictures show it in grey primer to highlight where some fine fettling is needed, but overall I'm pretty satisfied.
Just for clarity, it is entirely 3D printed, including bolt heads, with 3 exceptions: 1 ) The wheels ( Swift Sixteen), 2) The floor - cutting and scribing a simple piece of flat HIPs is quicker than printing and allows easier access to the inside of the body for cleaning up. 3) The end stantions - because the body and chassis are separate items and they cross the join, it's easier to apply them than try to print them.
The underframe is printed as one item, with axle boxes and coupling blocks printed separately and glued on. The brake gear is printed as: Blocks + v-hanger + lever + support loop, all glued on.
I have a 3-plank version drawn up, with minor improvements to the dropside hinges and catches. Not sure when I'll get around to printing it but I'll show the results one day!
The chassis I was pretty satisfied with on my previous builds ( although I have tweaked the design by adding angle brackets between the headstocks and solebars, plus bolts ), but bodies have always given me problems. It took me 4 attempts before I managed to get the machine settings right to give me something I'm happy with.
The following pictures show it in grey primer to highlight where some fine fettling is needed, but overall I'm pretty satisfied.
Just for clarity, it is entirely 3D printed, including bolt heads, with 3 exceptions: 1 ) The wheels ( Swift Sixteen), 2) The floor - cutting and scribing a simple piece of flat HIPs is quicker than printing and allows easier access to the inside of the body for cleaning up. 3) The end stantions - because the body and chassis are separate items and they cross the join, it's easier to apply them than try to print them.
The underframe is printed as one item, with axle boxes and coupling blocks printed separately and glued on. The brake gear is printed as: Blocks + v-hanger + lever + support loop, all glued on.
I have a 3-plank version drawn up, with minor improvements to the dropside hinges and catches. Not sure when I'll get around to printing it but I'll show the results one day!