•Matthew asks why it is not possible to use the square punches to cut music for a keyless organ. The standard pitch for most organs is 3.5mm, whether they are keyed or keyless. There are some, particularly German, organs that deviate from this and also some that use different transport speeds for th...

•Johnathan Holmes asks about punches for keyless book music production. A friend of mine, who owns a 36-note keyless organ, punches his own music on a foot-operated machine which he purchased from a fellow enthusiast. It too came equipped with square-ended punches. So he decided to try it anyway, an...

•In replying in the 130115 MMD to Jonathan Holmes' posting about punches and dies, Wallace Venable mentions that wear on the die plates is more problematic than punch-pin wear and that quite a lot of die plate surface has to be ground away to eliminate the rounding of the holes and to restore sharpn...

•I saw Matt's comment about repairing music roll dies on MMD this morning. He mentioned that Eddie Freyer used a donut-shaped punch to strike around the hole and thus force some metal toward the hole. I'm surprised that this would work with a hardened die. Using a hardened punch to address a hardene...

•Every once in a while I visit the forum associated with the Dutch team which produces MIDIBoek and Noteur software. I don't read Dutch very well, but sometimes the photos or drawings pretty much tell the story. Take a look at "Simpele kapmachine voor papierrollen" ("Simple Punching Machine for Pape...

•Square or rectangular punches were used by Richter in Germany. I have used a set of square or rectangular punches for making book music for Ruth organs, and they play as well as books with round holes. The main advantage is that punching is more accurate, punching is faster, and the books do not lo...

•Hello from Russia! I have MIDI circuit boards and relay output interfaces and I want to build a 88-note piano roll perforating machine on this base, but I don't know how make the mechanical part of the machine. Where I can find an old punch head or how to make a new one? Alexander Zenin Moscow zeni...

•Don Teach mention punches for making gaskets. I have been using Boehm Hollow Punches for a long time. They are interchangeable to make any configuration of I.D. and O.D. together in one punch. I bought my set from Garrett-Wade back in the 1980s but they don't carry them any more. Here's a few sets...

•Years ago I was given a paper punch that could be used to repair piano rolls (specifically Ampico rolls). I believe it was 1/16-inch. I have misplaced it and would like to replace it. Can anybody point me to a source (and if possible a part number) for an easy-to-use hand punch? I have a nice rotar...

•After years of use, my trusty spring-loaded single-hole punch that I used for editing Wurlitzer band organ rolls fell apart and I can't seem to put it together now. The punch was a handy little tool and it punched many thousands of holes in roll paper for me. It was made by the late machinist, Robe...

•I wish to acquire a small collection of single-hole paper punches for cleaning up badly-cut recuts with hanging chads and/or missed punchings, and repunching after repairs to damaged and taped rolls. The craftsman who recently finished an excellent rebuild of my 1920 6'4" Knabe A had a neat little ...

•Has anyone developed a newer software interface for the MIDster, or a similar punch? Thanks, Robert Lesko

•I have been mulling over building a piano roll punch. I have looked at the videos on YouTube and think that a single punch is way too slow and requires programming skills beyond my capability. A laser-based cutter is intriguing but the cost of a laser cutter is quite high still. I am thinking about...

•Seek concentric punch set, new or used. The only vendor I can find is in Australia and will not ship to the USA. Looking for center punch of 2 mm, outer punch of 20 mm. All other sizes okay. Walt Gerber - The Antique Piano Shop [ For example, http://www.boehm.fr/concept.php?lang=en [ twinnable and ...

•[ Ref. http://www.boehm.fr/concept.php?lang=en The Boehm punch set is sold in Canada and in the USA by Lee Valley. Gilles Chouinard Laval, Quebec, Canada

•Hi. I just got my first player piano up and running. It's nothing fancy, but it was fun to do. I am looking now for either a way to print rolls and manually punch them, or to build a punch machine. I've been looking on-line and it led me here. Any help would be really great. I know that printing an...

•For sale: MIDster Punch Machine system, including the punch machine, computer, power adapter, all books, software, many MIDI files, floppy disks and extra parts. Set up for punching John Smith Senior 20 rolls but can be programmed for other rolls. $2500 USD plus shipping & handling. I will ship to ...

•Hi, Patrick Mathis is looking for selling a production grade punch machine -- see it in action here: https://www.youtube.com/watch?v=mmlkKDqZ-vk&feature=youtu.be The software is not up to date, but there are possibilities to have a full featured move and punch with up-to-date software by using APri...

•This video was made by the guy who keeps the machines running for Keystone Music Roll Co. He has done some major work on the Ampico perforator, notably an entirely new die-plate to go with an unused original punch set that had been in stock since the 1930s. I was lucky enough have the opportunity t...

•Hello, Does anyone have a spring-loaded roll punch for sale? Please email me if you do. Thank you. Regards, Ben Roth Delray Beach, Florida 1jbroth1@gmail.com.geentroep [delete ".geentroep" to reply] [ See https://www.mmdigest.com/Archives/KWIC/P/punch.html [ Hollow Point Punch for Repairing Music R...