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Rewind bench: Difference between revisions
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→Best Practices
JesseCrooks (talk | contribs) (→Rewind Types: Added note about spring clamps used for multi-gang rewinds.) |
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* Check for bent spindles. Can be straightened out by a machinist, or you can buy new ones. Bouncing can mean the bearings are going bad or you need to replace the pad. | * Check for bent spindles. Can be straightened out by a machinist, or you can buy new ones. Bouncing can mean the bearings are going bad or you need to replace the pad. | ||
* Speed - Slower is better. When inspecting film, you should be winding it slowly enough that when you stop winding after feeling damage, you don't have to rewind the film to find the damaged section. If you're overshooting, you're winding it too fast. | * Speed - Slower is better. When inspecting film, you should be winding it slowly enough that when you stop winding after feeling damage, you don't have to rewind the film to find the damaged section. If you're overshooting, you're winding it too fast. | ||
* When using Kelmar tables, 20% motor power is typically appropriate for inspection, while 30% is appropriate for | * When using Kelmar tables, 20% motor power is typically appropriate for inspection, while 30% is appropriate for rewinding. Do not exceed 40%. | ||
* Rewinding onto reels that are out of round/not true (slowly but surely…) | * Rewinding onto reels that are out of round/not true (slowly but surely…) | ||
* Auto-rewind rollers - Using these rollers can ''sometimes'' help to get a tighter wind on warped prints. Make sure the roller is clean if you use it. Never leave rewind bench unattended while film is rewinding. | * Auto-rewind rollers - Using these rollers can ''sometimes'' help to get a tighter wind on warped prints. Make sure the roller is clean if you use it. Never leave rewind bench unattended while film is rewinding. | ||