Cutting Challenge Ultra 200 issues
Nov 9, 2023 at 10:52 am #3792760
I’m doing a project with Ultra 200 fabric. It’s impressively difficult to cut. My mat and rotary cutter can get through most of the fabric but leaves a lot small threads uncut so that I have to go back and laboriously snip the remaining threads with scissors. Even multiple passes with the rotary cutting wheel don’t finish the job despite using a new blade. I have decent scissors but that just mangles the cut if I don’t start with the rotary cutter. I guess I should be impressed at the strength of the threads in the fabric, but it’s also causing some frustration. Anyone have a good approach here? A hot knife or laser would be great. It’s worse than trying to cut heavy Cuben.Nov 9, 2023 at 11:41 am #3792761Monte MastersonBPL Member
@septimiusLocale: Southern Indiana
You might try an X- acto knife with brand new blade on a hard surface or cutting board. Apply adequate downward force on blade when pulling.Nov 9, 2023 at 12:24 pm #3792763Jon Fong / Flat Cat GearBPL Member
@jonfongLocale: FLAT CAT GEAR
Why not ask Durston?Nov 9, 2023 at 12:38 pm #3792764
I have reached out to Ripstopbytheroll (where I bought it) and Kevin at Seek Outside. The folks who use this stuff on an industrial level probably have laser cutters though, so not very applicable to my situation. I know some folks here who sew ‘recreationally’ have worked with the fabric, so I was wondering what worked for them.Nov 9, 2023 at 1:01 pm #3792773nunatakBPL Member
One project? Suck it up with rotary and scissors. A fresh cutting mat surface gets more of the little fibers
A handful of projects? This one cuts dyneema like butter
Edit: you mention a hot knife. Anything over 100d and all webbing will require active ventilation for safety. Under 100d active ventilation for comfort. One way is to place a big portable fan in an open window and set it to blow out, then cut right there in front of itNov 9, 2023 at 1:11 pm #3792774
Wow, now that’s what I’m talking about. An electric rotary cutter!Nov 9, 2023 at 5:36 pm #3792837Eric BlancheBPL Member
@eblancheLocale: Northeast US
Ascend Tools Kevlar Shears: https://www.ascendtools.com/shears-to-cut-high-performance-materials.html
They work wonders if a hot knife does not work. **Hot knife does not work well with Aramid fibersNov 9, 2023 at 8:29 pm #3792845Pierre DescoteauxBPL Member
My 2 cents. I used a scalpel to cut some loose weave Spectra. Worked very well! My rotary cutters were useless on the fabric.Nov 19, 2023 at 5:46 pm #3793468
I picked up one of those powered rotary cutters, and holy cow do they work well. They slide right through the Challenge UHMWPE cloth like there’s nothing there. If you go really slow and you’re not careful, it can wander a little bit, but it’s very maneuverable, and otherwise easy to handle. I did tape a Nightcore tube light to the barrel to illuminate the cutting area. If it came with a nicely positioned LED, that would make it even better, but at this point I’m happy.
By the way, Challenge Ultra 200 is incredibly pleasant to deal with once you get it cut. It plays nicely with my machine, is easy to manipulate, takes stitching brilliantly, and is just a pleasure in every regard. Very light and insanely tough.
A day hunting pack bag for my Seek Outside frame:
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