I should have known I was in trouble when the Tamiya cement so reluctantly entered the syringe. But, my trusty MEK Pak has finally breathed out the last of whatever makes it work, and so, I was stuck (so to speak). So I went ahead and made that test mould with Tamiya Cement. Plainly this stuff does not work the way I think it should. … Continue reading Solvent fail
I was just about to glue my 3D printed wheels to the bottom of a box and rashly pour rubber over them, when my inner project manager whispered in my ear and pointed at the risk register. Wrecking the Shapeways wheels would put me back a couple of weeks and $16 in shipping alone! For once I listened, and so I cast about for something … Continue reading Test masters
My first plastic vacuum chamber for evacuating rubber Moldavia never held much pressure. For this attempt, I poked around at the local thrift store and ultimately came away with a pot and a tempered glass lid that will enable me to see what is going on inside. Until I got hold of it, there was absolutely nothing wrong with this pot; I’m certain it had … Continue reading Vacuum chamber
The photo above presents the first four Proto:87 tyres to be found among the chips around my lathe. These are the 30″ pilot wheels, and their brass centres need to have spokes cut in before getting soldered into the tyres. They’re not perfect, but every wheel is better than the last, and I think these will be good enough. At least, if 622’s engine truck … Continue reading First four tyres
Parts for the first wheel rolled off the lathe this week. The engine truck wheels are only 8 mm in diameter, and have eight spokes. The spokes themselves are only a couple of millimetres long, and so, I have elected to make these wheels in two parts – a tyre and a centre. I actually formed six centres (a couple of extra never hurts), but … Continue reading Wheel Progress
It’s hard to believe, but I bought this vise at the same garage sale where I got my drill press for fifty bucks fifteen years ago. For a lifetime, the drill press and vise had been part of a piano repair business, but even in 2003 nobody wanted real pianos anymore, and even fewer wanted repaired ones. I think he threw in the vise for … Continue reading Unused tools
