Carl,
I've bought used (rotary/drag) equipment, although, never sight-unseen.
I've always test-driven the equipment.
The argument against used equipment, is the lack of a warranty and factory training.
In my experience,rotary/drag equipment has been very reliable and with a decent owners manual, the learning curve isn't too steep.
Regardless of if you decide to buy new or used, my advice would be to find a machine with a (deep) workholding vise (minimum) and cylindrical engraving capability (ideal).
That type of machine is usally called a "Gift" machine by most manufacturers.
Flatbed machines can be fitted with various jigs, to make them more versatile, but depending on the brand, versatility can be limited.
To summarize:
If you buy a rotary machine with limited capabilities, you'll still be turning work down. David "The Stunt Engraver" Lavaneri
DGL Engraving
Port Hueneme, CA |