Things have still been chugging away in the #11 patterns department. I don't know what the tally is for certain, I think we have about 20 or so patterns completed, or underway. I'm finding it really exciting to see whole component groups of patterns be completed, such as the set of bolsters that Bernie has been working on. Here's an idea of where things have come since the last update from Bernie and myself.
Bernie just sent these to me a week ago- this being the last of the three bolster patterns which were to be made. He always reminds me that patterns don't need to look nice, and that aesthetics are not generally a concern of his except for eye-catching patterns like the wheel centers-yet his work always looks really sweet. My hat's off to you, Bernie. I'll be looking forward to seeing your next project.
Since my last photographic update, I've gotten quite a bit done. The journal boxes and for the lead truck, and the main wheels have been mostly finished. From left to right- first there is the journal box and oil cellar for the drive axles. Then there is the frame for the lead truck leaning against the wall, and the trough-like box in front of it is the core box to produce the negative space beneath the arches. Next is the front and back halves of the eccentrics. Finally, closest to the camera is the lead truck journal box and oil cellar.
None of these patterns are done yet. They all still need some filleting, each journal box needs a core, and the lead truck frame needs some dimensional tweaking. The larger eccentric half is still very rough on the interior. I'm trying to get some machine shop experience at school by producing a template for my router to follow with an endmill. This should get everything dimensioned and smooth. Ill then add draft by hand.
Over the winter break between semesters, I hope to finish all the fabrication work left for the patterns I've started, and also add some combination of the pistons, cross head, or valve chest to the list. We're holding off on a wheel for now, to allow for some more research. One step at a time.
Alan