Vanderblog

A forum for flatbed cylinder proof presses

Archive for the 'Oscillator/Worm Gear' Category

29 Apr

I, too, am having roller problems on my SP-15

Rather suddenly my rollers decided to crap out by not inking the form evenly. I am using photopolymer plates.

The Problem
Form is not being inked evenly. Ink is heaviest at the beginning of the form (the area the form rollers hit first). Based on the image above, it appears that the rollers are not freely [...]

19 Apr

SP15 oscillator problem

I’m having a problem with my steel roller (the large one that oscillates) binding against the inner form roller when the carriage returns. After returning one or two inches it binds regardless of location, i.e.: If I lift and lower the oscillating roll, it still binds at any point on the return trip. One side [...]

03 Apr

Vandercook #3 Oscillating roller

I am in the midst of restoring a Vandercook #3 and am in big need of an oscillating roller. I understand this is a hard piece to come by (given that it is usually sold w/ the press itself). But if anyone could further help or direct me in this search, [...]

26 Feb

stopping oscillation of roller on SP-15?

Hi there,
Does anyone know how to temporarily stop the oscillation of the oscillating roller on an SP-15?
I have a project I’m hoping I can do a blending technique with, and I was thinking it would go much easier if there’s an easy way to stop the oscillation of that top roller. The area I’m [...]

25 Dec

Worm Gear Fixed!

A few weeks back, I wrote about a worm gear with a blunted point that was causing my oscillating roller to stop during it’s run back and forth. I tried filing the point down myself, and while I was able to get it smooth, I was not able to make a nice, sharp point. Last [...]

03 Dec

Damaged Worm gear on 4/215

The oscillating roller is hanging up at one point in its travels. Fritz wrote that this is probably due to damage somewhere on the worm gear, the center shaft of the oscillating roller. He was right; one of the points on the worm gear was chipped, and that is where the crescent rider is hanging [...]

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