Why you need an ultrasonic knife...

[airscale]

gents..

 

If you regularly use 3D parts (if you don't now, you will, as most of the manufacturers will start to include them) and have to snip them off their supports then I can change your life..

 

I bought a magic cutter for £250 3 months ago (they are £170 now) and I have to say it is the best modelling tool investment of my life. I am evangelical about it, banging on to anyone that would listen at Telford - in fact my Dornier is designed to be used with one and I practically won't sell it to you unless you have one.

 

The effortless precision with which you can remove supports and their nubs has to be seen to be believed, there is also zero stress on the part so the most fragile part can be removed safely - any snipper displaces material and can cause breakages - this simply does not happen anymore

 

There, I said it, I passed on my wisdom and I feel better for it

 

Get one, you will not regret it

Peter

[thierry laurent]

I got one two years ago for that specific reason. And at that time they still costed around 400€ for a good Japanese tool. Hopefully I could purchase it as a professional tool. However there are other possible options. To me behind the ultrasonic cutter, the hot knife is not far while being FAR less expensive! Without lower prices for ultrasonic cutters, this is what I would recommend to most modellers to remove the 3d printed supports.

[blackbetty]

i think i will try this one for christmas:

 

https://www.ebay.de/itm/227069625289?_skw=ultraschallschneider&itmmeta=01KA3MFV6Q1BK7MYMM0KW6Z59Y&hash=item34de6783c9:g:~jEAAeSw6IxpEtOo&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1cJtxT%2BRrl9LgmAq1uN7Z5aF%2FTF6Iql2mjp14wtLlStnVjBEWyhMynMQ%2Fm%2Fc40Bu%2Fc7%2FS3TjBiAi0JNho%2FCwUEn4wRDORbCe1s4oM9Fc0FvzT2uCerE7%2BdJV%2BH5Mkm7CiLzMRjDw0huw9SLmFPCr%2FzE3jS4j%2BNOPhc559YLXsDRVaOU7k7iSH7duZSQzadAa8l2ncq2aFxF7Deb4ND8HsLrrN8p%2B1yp8iYLHhNqYLIIbfSxYcdJrIyGSH%2FUm1mrvf037P%2FayPiYEdZ8PZ7Xo%2FUGT4WDnFvOmU1HwxH20b2vPg%3D%3D|tkp%3ABk9SR76zv_TQZg

[Iain]

Been thinking of getting one - but your recommendation makes the decision Peter.

 

Removing the print supports without damaging the parts on a resin 3D print is probably the biggest challenge to those new to resin printed kits, and the ability to cut like this does sound like a game changer.

 

Off for a browse...  🙂

 

Iain

 

 

[JayW]

Well now!  That would be one problem with 3DP solved.  Now for the others....  😑

 

Thanks for the tip Peter!

Edited November 15 by JayW

[wunwinglow]

Oh my poor credit card....

[Out2gtcha]

I'm pretty sure I bought the same thing that Karl purchased, a Hanboost C1 Ultrasonic Cutter.

 

I have yet to put it though its actual paces, as my model room is utterly destroyed, but it looks to be very useful.

[thierry laurent]

One thing you have to take care about is the apparatus heat increase speed. Mine does not come with a battery. It has a transformer. So, theoretically I could use it for longer sessions. However, even in that case, this is rarely possible as I need to use the full power. Quite often the device enters in security mode after having cleaned one or two large and complex parts. Then you need to wait for cooling. So you must organize your activity to work during successive short sessions. It is a terrific tool but not a panacea! Consider also getting different types of blades. This will be helpful according to the job. Finally, never cut first the supports very close to the part, more particularly when there are a lot of them. Even if this lengthens the cleaning process, this will decrease the risk of breakage or creation of small surface divots. So in all cases, patience stays the paramount rule!

[thierry laurent]

I forgot: it is also very useful to cut large vacform parts and fragile resin parts! But do not try to cut thick resin supports as this produces very bad fumes...

[CraigH]

Ordered a Hanboost. With rhe rate of stuff @airscaleis putting out I'm going to need one lol

[Thomas Lund]

Thanks AirScale

Was looking at them and wondering if they were as good as they seemed. On the 'to-get' list now, for sure

[AlexM]

Thanks for the tip. I ordered a Hozo NeoBlade which is on black friday discount at Amazon (120 €). 

[mozart]

On 11/20/2025 at 9:12 PM, CraigH said:

Ordered a Hanboost. With rhe rate of stuff @airscaleis putting out I'm going to need one lol

Me too, good Black Friday (what the heck is that about?) price. 

[Dave Williams]

2 hours ago, AlexM said:

Thanks for the tip. I ordered a Hozo NeoBlade which is on black friday discount at Amazon (120 €). 

That’s the one I got a week ago.  It does work, but it’s a but bulky to hold with that thick center section.

[Hubert Boillot]

Now, that’s a great Christmas gift idea ! Duly ordered 😉 !

 

(And, because Nazi stuff is not my cup’o’tea, I’ll still pass on the Do-17  )

 

Hubert