Stroonzo
August 26, 2020, 5:01pm
12
I use and keep a 4" lens in my machine for everything. The engraving is excellent. The cutting is amazing. Best tip I can give you is to stick with Two - Six lenses (II-VI).
You have a tiny spot for photo engraving. the ‘sweet spot’ for cutting is a matter of ‘depth’. I’ll give you my laymen explanation, and you can cuss me out later.
You have the perfect ‘spot’, but if that was the only place you could cut, the only thing you could cut with a laser would be tissue paper. While the ‘spot’ is the hottest, you have X amount of distance above and below the ‘spot’ where the laser still has the energy to cut. That energy along with power ( Wattage ) and good air assist …
Hello. Im new to the site. I have a Nova 35 with a 100 watt laser tube. I’m having trouble getting the 4” lens to work. I can’t get a clean cut and the laser will not cut though material. I installed the larger air cone, increased the air flow, tried different focal lengths for 7mm to 13 mm. I have no issues with the 2” lens and the HR lens. Has anyone else had success with this lens cutting thicker material ? Thanks Richard