Does anyone know the specs on the form rollers for a Challenge 15MP proof press ?
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Inking roller squeal
Yesterday morning we had a rather strange experience with our Vandercook SP-15. It was about noon and the studio was just starting to warm up. Temperature was maybe 50 degrees when we started the heater. After a bit we inked the press to print some notecards and what I think was the vibrator roller (pretty […]
MoreSP-15 roller height problems
I have a couple of questions regarding roller adjustment on my SP-15. Recently when checking the roller height, I discovered that the ink stripe on the gauge was about twice as thick in the middle of both rollers than on the ends, leading me to think that the rollers are for some reason slightly sagging […]
MoreClaybourn Proof Press
This photo was sent to me by Amanda Stevenson, Curator at the Museum of Printing History in Houston, Texas who asked me to identify the press in the background. I recognized it as a Claybourn hand proof press made in Milwaukee, Wisconsin circa 1926. There should be a nameplate on the operator’s side and the […]
More#4 form roller gear rack
I have been perusing the posts related to #4 form roller problems, specifically in regards to the clutch plate. I finally got a good handle on the source of all the racket that my press has been making for the last few months by adjusting the roller assembly and shimming the clutch plate. The issue […]
MoreI, 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 […]
MoreAdjusting Form Rollers without Gauge
My Uni I came to me without a roller setting gauge. Is it possible to get one, and if so, how? If (as I suspect) they’re vanishingly rare, can you recommend method for setting the height of the form rollovers without one? Thanks!
MoreSp-15 form roller help!!
A friend and I just had our rollers recovered from NA Graphics and we’re sitting here putting them back together and the gear will not line up where it is suppose to. It’s the same for both sets of rollers. We’ve tried each side and every roller trying to get the gear to line up. […]
Morestripping rollers
I’m sending off my SP20 form rollers to be re-covered, and want to strip off the old material first to save on shipping (they are quite heavy, and when I compare them to an extra core I have it’s clear that the old rubber compound makes up at least 50% of the weight). I’m apparently […]
MoreUneven inking on #4 (see pin question)
Thanks to all who have advised on my previous thread. I’d like to go back to my original problem, as it still persists despite new rollers, and that is/was uneven inking over the bed of the press, lengthwise. I had a form set up with two plates, one close to the grippers, and the other […]
More#4 Ink Roller MR-110 Pin
I sent my form rollers to be recovered and got them back without the MR-110 pin that goes into the end of the shaft, the one with the rounded head that connects to the gear clutch. The roller company says they never saw them. When I prepped the rollers for shipping, I stripped off the […]
MoreUniversal I and III Roller Core Changes
On Vandercook Engineering Change #848, dated 8/15/61, the roller cores for these 2 presses were radically changed. We run into these 1961 and earlier presses with the old cores on occasion, and it makes replacing the rollers much easier to know the serial number, or even better, a photo when recovering the rollers or ordering […]
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