Curb your enthousiasm.
It is all very nice but it is only for experimental work or when there is nothing from a factory. Like in wartime and supply to consumers gets low or nothing. I.e. you would have to make do
Still better chances then building your own HD camera without components available.
Slitting using a razorblade is useless. I know from perosnal experience when I tried it for cutting 70cm of 9.2mm MINOX film. Let alone 15 meter of S8. The cutting will be very coarse and the sides will never be parallel. In the posted film you can clearly see the blade swinging left-right. The only proper method to slit is with rolling cutters. I.e. like the LOMO 16/8 cutters. And which large factory machines do.
For perforating you need things like these in DS8 or S8 design (and expect to spend big money ( >5K Euro on them
) :
I.e. one or more punches (and a die) and a number of guiding pins who will ensure the interval is exact to a very high level. Trusting the advancing pushers of a sewing machine is just ridiculious when considering all attempts to keep play and margins in cameras or projectors to utter minimums.
Check on the 5 year past threads here on the Paul Cotto perforating attempt. Never heard from that undertaking again. What happened. Out of time or money?
