[Cameramakers] New Magnetic Film holder design
Hi , I had weighed the 1/8 inch thick x 1 inch wide high energy magnetic tape and it will add approximately 1 3/4 pounds to each 20x24 holder. Add this to the thin steel shims that would have to be used complete the magnetic function, and the epoxy glue , I am sure It will be over 2 pounds per holder Also add the 2 inch additional camera back andholder size (in each dimension ) to accommodate the tape is also additional weight...I am also not 100 percent convinced if the magnetic attraction will be enough to hold the twofilm holder sections together when removing the darkslideect... Any feelings or suggestions on this? I like the idea of a twopiece film holder for ease inloading and unloading. Maybe some sort of a pinned or clamped compression style frame should be considered. John Cremati
Re: [Cameramakers] New Magnetic Film holder design
I found these. Gene http://www.wondermagnet.com/dev/magnet4.html - Original Message - From: John Cremati To: [EMAIL PROTECTED] Sent: Tuesday, October 01, 2002 4:36 AM Subject: [Cameramakers] New Magnetic Film holder design Hi , I had weighed the 1/8 inch thick x 1 inch wide high energy magnetic tape and it will add approximately 1 3/4 pounds to each 20x24 holder. Add this to the thin steel shims that would have to be used complete the magnetic function, and the epoxy glue , I am sure It will be over 2 pounds per holder Also add the 2 inch additional camera back andholder size (in each dimension ) to accommodate the tape is also additional weight...I am also not 100 percent convinced if the magnetic attraction will be enough to hold the twofilm holder sections together when removing the darkslideect... Any feelings or suggestions on this? I like the idea of a twopiece film holder for ease inloading and unloading. Maybe some sort of a pinned or clamped compression style frame should be considered. John Cremati
Re: [Cameramakers] New Magnetic Film holder design
I've seen some really strong and tiny rare earth magnets. Like the size of a pencil eraser or smaller. A few of those set into your frame might get it done. Gene - Original Message - From: John Cremati To: [EMAIL PROTECTED] Sent: Tuesday, October 01, 2002 4:36 AM Subject: [Cameramakers] New Magnetic Film holder design Hi , I had weighed the 1/8 inch thick x 1 inch wide high energy magnetic tape and it will add approximately 1 3/4 pounds to each 20x24 holder. Add this to the thin steel shims that would have to be used complete the magnetic function, and the epoxy glue , I am sure It will be over 2 pounds per holder Also add the 2 inch additional camera back andholder size (in each dimension ) to accommodate the tape is also additional weight...I am also not 100 percent convinced if the magnetic attraction will be enough to hold the twofilm holder sections together when removing the darkslideect... Any feelings or suggestions on this? I like the idea of a twopiece film holder for ease inloading and unloading. Maybe some sort of a pinned or clamped compression style frame should be considered. John Cremati
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Re: [Cameramakers] New Magnetic Film holder design
That is a great Idea.. It would cut down on the weight and would possibly be a stronger connection. They could be machine fitted flush at the edge of the film where it would not increase the frame size very much.. a 1/4 inch steel strip would only be required instead of a 1 inch...I will seriously consider it... Thanks, John Cremati. - Original Message - From: Gene Johnson To: [EMAIL PROTECTED] Sent: Tuesday, October 01, 2002 9:18 AM Subject: Re: [Cameramakers] New Magnetic Film holder design I've seen some really strong and tiny rare earth magnets. Like the size of a pencil eraser or smaller. A few of those set into your frame might get it done. Gene - Original Message - From: John Cremati To: [EMAIL PROTECTED] Sent: Tuesday, October 01, 2002 4:36 AM Subject: [Cameramakers] New Magnetic Film holder design Hi , I had weighed the 1/8 inch thick x 1 inch wide high energy magnetic tape and it will add approximately 1 3/4 pounds to each 20x24 holder. Add this to the thin steel shims that would have to be used complete the magnetic function, and the epoxy glue , I am sure It will be over 2 pounds per holder Also add the 2 inch additional camera back andholder size (in each dimension ) to accommodate the tape is also additional weight...I am also not 100 percent convinced if the magnetic attraction will be enough to hold the twofilm holder sections together when removing the darkslideect... Any feelings or suggestions on this? I like the idea of a twopiece film holder for ease inloading and unloading. Maybe some sort of a pinned or clamped compression style frame should be considered. John Cremati
