Happy Monday!
I had my first print failure in a long run of success. I was printing the engine house vent stacks 2-up since they would both fit. The lip on the first part of the cone on both pieces failed to print.
The reason: When I had printed that little throttle linkage, I had changed the settings from "Heavy Support" to "Light" and this was the result. the long skinny support that was suppose to contain that lower lip, didn't form properly and the print failed. I have redesigned the supports and will be ready to print again when my next experiment finishes.
I assembled the last HVAC unit and painted the bumpers. I made a mistake. I wrote down the track width, but neglected to record the width I wanted the bumpers to be. As a result, I made them track width. It looks fine, but reduces the surface area for fastening it to the building. Ingenuity will rule the day. I'm going drive a couple of long screws into the inter-track space that will retain the bumper from moving backwards. Then I'll use the contact adhesive patches to hold the back portion. It will be okay.
After painting, those NBWs really popped as predicted.
I'm waiting for the Tamiya Bare Metal spray to return to the hobby shop so I can paint the other three units.
I'm trying to print the entire 567 gear end as one part. I added some extra supports to the throttle rods which I may or may not remove after printing if I can do it without breaking them. They'll be okay if they're supported properly.
There's some more pieces to add. There's the fuel pump, oil pump and oil scavenging pump that go on the three remaining blank spots. It's should be printed later tonight and then I'll know if this idea works. Notice also the extra support under the power-take-off shaft that would go to the air compressors and traction blower drives. I'll cut that away after printing. I watched the print forming and saw that lower flange edge hanging out there. This is the part of 3D printing that they don't tell you about, but when mastered, leads to successful prints.
