Category: Caster Computer Control

Monotype Computer Control: Diagnosing Air Flow Problems

One observation I have made while testing out my Monotype composition caster computer interface is that not all its ports deliver the same amount of air flow. On some, the air pin in the caster lifts and drops crisply in

Posted in Caster Computer Control, Kevin

Monotype Computer Control: A Long Overdue Update

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

Posted in American Typecasting Fellowship, Caster Computer Control, Kevin, Other people Tagged with: ,

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

Posted in Caster Computer Control, Equipment Acquisition, Repair, and Maintenance, Kevin

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

Posted in Caster Computer Control, Equipment Acquisition, Repair, and Maintenance, Kevin, Matrix Making, Monotype Composition Caster Tagged with:

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

Posted in Caster Computer Control, Equipment Acquisition, Repair, and Maintenance, Kevin

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

Posted in Caster Computer Control, Equipment Acquisition, Repair, and Maintenance, Kevin

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

Posted in Caster Computer Control, Equipment Acquisition, Repair, and Maintenance, Kevin

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

Posted in Caster Computer Control, Equipment Acquisition, Repair, and Maintenance, Kevin