It has taken a week longer than I wanted to turn the drivers for 622. These are made from 303 stainless steel, which I’m fairly convinced is almost the limit for my little Sherline lathe. Certainly, all tools need to be sharp, and shallow cuts are de rigeur. Along the way, I have seen a steady improvement in the quality of the output. From the … Continue reading Driver blanks for 622
I’m all a-tingle! Today is the day when the designs for 622 start to get realized. I just uploaded the first files for 3D printing at Shapeways. I’ve broken the printing in orders parts – the first for the engineering parts required to make a working model, and the second will be for the details. This not only deferred $130 of spending, but may also … Continue reading Ordering parts for 622
I believe I’ve just completed the patterns for 622’s etched parts, although I shall have to go back and check them for certain. It’s funny how time flies; I last worked on these files in July! Anyway, for those who are interested, here are the files. Go ahead, build it! Continue reading 622 Etching Pattern
I dragged out the resistance soldering unit this morning to solder those centres into their tyres. On the first wheel, I experimented with solder paste and a torch, but ultimately settled on the RSU. So, with only twelve joins to make, I started work with the RSU again. This time, I found that after the first spoke, the current was passing through that path and … Continue reading Soldering wheel centres
I didn’t write about it before, but filing that first wheel centre was like trying to wash a cat – slippery and occasionally painful. There seemed to be no good way to grasp it. Worse, as I was filing bits away, the challenge levelled up! By the time I was at panther level, I was using a combination of needle nose pliers, fingernails and will … Continue reading Spoke filing fixture
Looking back on 2018, it would be easy to despair about the amount I didn’t accomplish on Pembroke. Two floods put a damper on things (so to speak), and many non-rail projects also ate my year. However, the singular achievement of the year came on January 1st of this new year, when I pulled the first insertion-cast pilot wheel from its mould. This part marks … Continue reading Any wheel I want
Among the dwindling count of cards arriving in our mailbox this Christmas, there appeared a plump envelope with a strange foreign stamp. It was from Dave Doe, that stalwart defender of Proto:87, that Englishman living in Holland-now-France, that dear old friend. Along with a card, Dave enclosed some wheels that he has discovered. Astonishingly, the 3mm Society not only offers a range of wheels but … Continue reading Christmas Post
