Not-a-number

Runner system prints completed.

Generally I put a feeder/riser where I think there might be a lot of shrinking. Either a lot more mass than whats next to it or lots of thin sections going in opposite directions (which is whats happening in this case) Youre right, in the middle would be more logical but there is a small detail there that I dont want to lose. To be honest the whole system might be terrible. Those feeders may or may not even be needed. The runner system and gates are probably the wrong size too! But I follow the guidelines and after the first pore I will learn a lot and go from there. I have very little experience in designing runner systems so its more good luck than good management. This is what I have followed from the start. Its been good, it got the cylinder block first crack! https://www.amazon.com/Castings-Practice-Ten-Rules-ebook/dp/B001OQBLZ2/ref=sr_1_1?ie=UTF8&qid=1548464690&sr=8-1&keywords=casting+practice+10+rules Yeah for sure. Long term the plan is to build the car and a long the way engine building can fund it.

This gives you an idea of how the moulds/cores from these patterns will go together.

Yeah I have one in my shed in NZ. Its a good machine, takes a bit of manual G coding but gets the job done. Here in 'Murica though I only have a printer to keep me sane!

All patterns completed for the crankcase! Just finishing the runner system now. Then onto the sump

Havnt updated for a while. Been in the US living up the Freedoms. Ive been working on a lot of CAD over the last 1-2years and have just recently bought a massive 3D printer to make casting patterns. The plan is to stock pile patterns and then hit it hard when Im back in NZ Currently doing patterns for the crankcase. I'll update more on Instagram. @Barlow.Jobs

This is the 'space stuff'. Great day for NZ

So 2 weeks before moving to the US this happens! Guy in OZ is rebuilding a T57 and needed a new block. So got to and cast one up! Didnt go 100% but still really well. On a plane to LA in 3days!

Ok I lied. A few more photos. Rear T57 spring mounts. You can see them in this photo

Haha. I work here www.rocketlabusa.com and will be doing bigger better stuff in the US. Bigger better space stuff.

This will probably be my last interesting post for a while. Will be moving to California in a month to build space stuff. Visa came through today after months of paperwork!So good! So making parts will slow down, but hopefully CAD work will speed up! Anyway, these are spring hangers and a trunion hanger CNCd from 4140. Having a mill in your shed is key to building shiny stuff!

Any day now!

Finished! Bit of machining porn for you!

Its at Fisher and Paykel PML. Not sure of the exact machines but they have some pretty amazing gear. The last photos are on a 4 axis to do the angled cam and exhaust faces + valve guides etc. They can do some seriously good work!

Progressive Castings for iron and Skellerns for the others. (owned by the same people now anyway)