[Shop-talk] Cutting canvas rolls?

[Jim Franklin]

> On Jun 14, 2023, at 6:35 PM, Donald H Locker <dhlocker at protonmail.com> wrote:
> 
> Is the objective to cut the 12ft roll length into shorter rolls, or to
> cut the rolled canvas into shorter 12ft-wide lengths?

Yes, from 12' long down to 4' long.

They tried unrolling and it's many dozens of yards long so that got shut down quickly.

> 
> Assuming the former, the cutting tool must have no teeth but must be
> able to cut through the depth of the roll. A knife at least four feet
> long (to be able to cut the full circumference of the first pass) long
> will be required. Rolling the canvas rolls on the floor while pressing
> the knife on it is the only way I know to achieve a clean cut. The knife
> MUST be sharp and very stiff.
> 
> If the latter, a utility knife is the right answer.

I have never seen a four foot utility knife :-)

An electric turkey carver is my goto for stuff like foam but the canvas is stout and I don't see it working. 

A rotary razor is ideal, but the best I can come up with is a disc grinder which doesn't have the depth. 

Thanks for all the ideas so far.

jim