1,306
edits
Framing: Difference between revisions
→The Framing Mechanism
No edit summary |
|||
| Line 1: | Line 1: | ||
===The Framing Mechanism=== | ===The Framing Mechanism=== | ||
Making sure your intermittent is both centered (we'll go over how to do that) and in a neutral position in relation to the [[Geneva mechanism]] is a must before starting any show. Neutralizing the intermittent must be done before threading a projector EVERY SINGLE TIME no matter what, regardless of whether or not your framing has been re-adjusted. | |||
'''Neutralizing the Intermittent''': Sometimes called "neutralizing the Geneva" which refers to the internal mechanism. To place it in a neutral position, place your fingers on the intermittent sprocket and advance manually. The intermittent sprocket does not rotate continuously, but it steps. Once it's completed a full rotation and stopped, it will be in a neutral position. You should be able to rock the manual advance back and forth a little bit with the intermittent sprocket remaining still. | |||
*From the [[Century]] Projector Manual: "''Rotation of the FRAME knob on the front of the projector causes the intermittent to move up and down. Observe the upper and lower limits of intermittent travel, and position the intermittent at the center of its travel. This will insure adequate movement up or down to correct accidental misframes. Always "center" the intermittent in this manner before threading.''" | |||
*If you are working with a [[Simplex XL]] you'll noticed the intermittent does not move up and down, but rotates. The same principle applies, position the intermittent at the center of its rotation, make sure the intermittent is in a neutral position, and then thread the film. | *If you are working with a [[Simplex XL]] you'll noticed the intermittent does not move up and down like the Century, but rotates. The same principle applies, position the intermittent at the center of its rotation, make sure the intermittent is in a neutral position, and then thread the film. | ||
*If you're working with a [[Kinoton]] you won't be able to see external evidence of the framing mechanism having been moved. But it is still very important that the intermittent is in a neutral position before you thread. To check for this, put your finger on the sprockets of the intermittent as you manually advance. Once you feel the intermittent make it's rotation, advance a tiny bit more (the intermittent should be still) and stop. | *If you're working with a [[Kinoton]] you won't be able to see external evidence of the framing mechanism having been moved. But it is still very important that the intermittent is in a neutral position before you thread. To check for this, put your finger on the sprockets of the intermittent as you manually advance. Once you feel the intermittent make it's rotation, advance a tiny bit more (the intermittent should be still) and stop. | ||