Phrozen Sonic Saber - Ultrasonic Cutter for Refining Prints

This was a superb addition for my hobby work with plastic models. I thought it was defective at first because it is completely silent when turned on. I quickly realized that it was working perfectly. Makes excellent cuts in ABS plastic for model building.

A hot knife through butter. In this case there’s no “like”. The friction heat generated when using the ultrasonic blade melts plastic. It’s great cutting thin supports with ease but beware trying to cut any thicker plastic because you’ll end up with a molten stringy mess, not a clean cut.

worked great, until the 4th use, then stopped working mid cut. goes into failsafe (orange LED) immediately after pressing the "trigger" button. Initially, there was a an issue with exchanging information for warranty support, took around a week to finally get the replacement sent, but, it arrived from Taiwan in less. Item works ok, but the fact it was replaced reasonably means more and pushed me to change my review

I’ve seen a lot of reviews, some by noted modelers. This unit, at least not mine does not work as advertised.Beautiful unit, well built, quality shows, however mine will not cut anything. Put it on my thin supports for a print and even though I can hear the vibration kind of, it does not cut even with moderate pressure.It will cut if I exert a large pressure, but so will an average X-Acto blade. From what I’ve seen this unit should cut with little or no pressure.Perhaps defective, but I believe it’s past my return time.Wasted time and money in my case and sadly another piece destined for the electronic waste dump.If someone from Phrozen can reach out to me with a resolution I’d be happy to entertain it, and change my review.Thanks in advance

No doubt you are thrown by the price, I can tell you this is worth it but .... you are still not sure. This thing cuts resin, pla, lexan, plastics, acrylics virtually all softer but rigid composites. It has changed my life and it is worth every penny.

I am an avid 3D printer and modeler, and kept hearing great things about this ultrasonic knife. I took the plunge, and I wish I had returned it while I still could. My experience has been quite underwhelming. If you're expecting to slice through plastic supports like a light saber, look elsewhere. It does cut, but it is slow and requires a steady hand, even for thin FDM material. I have yet to encounter an instance when using my trusty sprue cutters wouldn't have yielded the same result (often faster). To make matters worse, the on button (which you need to keep pressed to activate the knife) is terribly unergonomic and makes the whole operation more difficult than it should. To top it off, the entire unit feels cheap- light plastic, finicky button, it feels like a cheap remote. Again, it works, slowly and uncomfortably, but it is absolutely not worth the price of entry.

Works great as an entry-level hobbyist grade piece of equipment. Good value the money, blades are strong. Used it to open a set of headlights for a projector retrofit, it cuts smoothly and easily. Very satisfied with this product.

Love this thing! It’s definitely not like cutting through butter but it is comparable to that. If you take the time to clean up your prints with this you can’t even tell that supports were used in most cases, and you won’t get any small holes left from the supports. It does have a 5 min timer to prevent overheating but I have yet to trigger it because I let go of the button while in not cutting and that seems to be better for the system I assume.