My last post about this project was over a year ago, wherein I mentioned that I had purchased the aluminum stock to make the main parts of the valve unit. A lot has happened since then, to the point where…
Category: Type Casting
Now I know…
…why the Monotype manuals say not to raise or lower the pot unless it is molten. They never explained why this could cause any problems, and the pump piston linkage is jointed enough to follow the pot up and down…
It’s Getting Real
I actually went out and purchased some aluminum stock for making the computer control valve for my Monotype. That’s a piece of 1″ aluminum square bar which will make the mouthpiece that fits against the air holes in the caster’s…
An Interem Solution to the Pneumatic Valves Problems
This week I’ve been occupied with (finally) putting away all the display mats I bought last year at the Anderson and Skyline matrix auctions. They have been cluttering up the shop since last summer with their variety of packaging. I…
Tagged with: Jim Rimmer
Matrix Making: Handling Ink Gain
Letterpress printing has a property called “ink gain” where the inked area left on the printed sheet is a tiny bit larger than the type used to do the printing. Because of this, when designing type (which includes designing the…
More information on Matrix pneumatic valves
This week I was having another look at the pneumatic solenoid valves I want to use to run my Monotype from a computer. I was somewhat disappointed that the valves I had were the Normally Open (N/O) type and designed…
Cleaning up the pantograph
The Gorton 3U pantograph engraver/mill I just bought needed a bit of fixing up. Some of the bearings in the mechanism were loose, things were dry (of oil) and pretty dirty, and there was a drive belt missing. I have…
More Equipment!
The main reason for my visit to Don Black last Friday was to pick up a new (to me) machine. This is a Gorton 3U pantograph mill/engraver, which turned up when Don and Craig were reorganizing their stock. This machine…
Cleaning up unearths a treasure—a month late
I did a round of cleaning up in the shop, partly to search for my missing mat holder, and partly because I picked up more parts from Don Black. While cleaning up, I found the box of stuff I picked…
Measuring air valve spring strength
In addition to poor flow when open, the other shortcoming of my stock of surplus Matrix pneumatic valves is poor sealing (leakage) when operated in NC mode, where the shutter spring is the only force holding back the flow of…
Top