Seriously look into a rollma. It is an upfront cost, but can help you save in the long run. They are simple, accurate and easy to use. A No Brainer in my opinion.
As an alternative to a band saw a "saws-all" could do a rough job of it, and a simple hack saw could too.
Originally Posted by waynecrider
If you want to build a slitter you have my support and admiration. A band saw would probably work fine except for: 1) getting it into the darkroom and 2) obtaining a blade that would leave a clean enough edge. It would certainly make aligning the cutting operation a snap. A razor saw is a Japanese hand saw. Supplier on the web are "Hida Tool" in Berkeley CA and "Japan Woodworker" in Alameda CA. High end hand made models cost a fortune but the inexpensive industrial models with replace-able blades also produce superior results. In hardwood they leave a kerf that requires almost no finishing. I have used one to cut both seamless and photo paper rolled on carboard core and it produces a very clean edge. The US made copies I have tried do not seem to produce the same results. Obviously YMMV.
Hi, we make loads of Black & White roll paper items, including FB, and its not a secret...we are not the only manufacturers who do, check our product availability list ( PAL ) under the flashing Ikon on the ILFORD.com website : It may be special order at B&H ( or whichever ILFORD stockist you use ) but its normally in stock at our US distributor.
Simon@ILFORD Photo / HARMAN technology Limited