How to Save Money When Buying China Cardboard Laser Cutting Machine

The two main issues I would focus on when it comes to picking a machine are the size of the bed and the power of the laser.

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The machines bed size will determine how big a piece of material you can fit in the machine to cut or engrave. A bigger bed will allow you to cut or engrave larger pieces and even if your doing something small, like laser cut jewelry, a bigger bed will allow to cut out multiple pieces at once rather than one at a time. Also some machines have a fixed bed and some have a bed that can go up and down. A bed that goes up and down allows you to engrave different sized objects. The cutting depth doesn’t change but if you want to engrave a logo on a leather shoe rather than on a flat piece of leather, having a bed that you can lower to get the shoe in the machine is important.

The next issue is the power of the laser. The strength of the laser is measured in Watts. The more watts the more powerful the laser is. The laser, I used, started out with a 30 watt laser and was then upgraded to a 50 watt. The strength of the laser is most important for cutting. Remember the thickness of material that a laser can cut is determined by the focal point of the lens and not the power of the laser. So adding a more powerful laser won’t allow you to cut thicker material. But it will allow you to cut faster and more reliably. A weaker laser will mean having slow the laser down to be able to make good cut.

I would suggest getting the largest machine you can and starting with a weaker laser. A bigger bed will allow you to work on bigger designs or cut and engrave multiple pieces at once. You can upgrade the laser in it to a more powerful one later.

Hope this information helps out. If you can’t afford your own laser I would suggest looking for Maker space where you can use their laser or find a shop that will engrave and cut for you at a good price.

Geordie

Originally Posted by

The flutes in the corrugated carboard duct away the air assist and actually will promote flaming Be aware, you will get a charred edge on the cut whatever laser you use anyway.
The thickness of multilayer board will be an issue as the beam of the laser is focussed and it diverges away from the focal point. There is just a relatively small amount over and below the focus point where power density is ok for cutting , using longer focal length lenses will help , but will have an enlarged spot size. 10mm in carboard/paper consisting of multilayers will not be an easy task , the cut sides might have a curve as well , that follows the beam shape , thick stuff might cut like this )( and not like this ||. You would need quite a bit of power to have enough power density to cut properly. The cheaper glass tubes actually are worse as their spot sizes are large , a 75w RF co2 tube from synrad or coherent would be better, the beam quality is better. Maybe try a Reci glass tube?
I would imagine a reciprocating knife or some other system would be better than a laser for this application due to thickness