I got a big lot of what appeared to be justification wedges for a Monotype composition caster from Don Black last week, many of them brand new, still in the protective plastic dip from the factory. It turns out, however,…
Category: Equipment Acquisition, Repair, and Maintenance
Strip Moulds at Don Black’s
While I was at Don Black’s today, Don mentioned that in the process of cleaning up their warehouse (a daunting project which appears to be coming along well) he found a few boxes of what he thought were Monotype parts.…
Tagged with: Don Black
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…
Measuring air valve shutters
Looking deeper into the poor airflow observed on my stock of surplus Matrix pneumatic valves, I did a subjective measurement of the airflow on each port, on a scale from 0 to 5, using a 20PSI supply. At zero, the…
Pneumatic valves for Monotype computer control
The most expensive and bulky aspect of making a system for computer control of the Monotype composition caster is the pneumatic solenoid valves. You need 31 valves, and they typically cost $30-$50 each. They are generally large enough that they…
Cleaning and refilling the Monotype pot
For the casting job I have coming up I want to use Monotype medium alloy (74/10/16% Pb/Sn/Sb) rather than the softer Linotype alloy (84/4/12%) currently in the pot, which I was using to cast spacing. To do this, I got…
More store rearranging
This week we had to get a fresh bale of bleached abaca pulp down from the upper tier of the racking in our store. This meant clearing a path for the forklift, which in turn meant moving almost everything. We…
American pump on an English caster? Nope!
As part of test-fitting the parts for lead-and-rule casting, I found that there is a critical size difference between the American and English pump bodies. Both these pumps take a ⅞″ diameter piston. The section of the pump that the…
Converting the Composition Caster to Lead-and-Rule casting
One thing I would like to be able to do with my Monotype Composition Caster is to cast spacing and rule. There is a kit of parts required to make the change-over, and I now have most of the necessary…
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