Working With Carbon Fiber
How come my circles are not perfectly round?
Then you are machining circles on a CNC and your circles are not coming out perfectly round, it is commonly caused because there is some backlash developing on the machine. Backlash is a tiny amount of play that appears over time and is noticed when a drive changes direction.
When running in a positive direction, the gears/lead screw are engaged with the lead screw nut on the gantry, but when the stepper motor reverses direction there is a tiny space between the lead screw and the lead screw nut that has to be made up before there is positive engagement in that direction. After many, many hours of use or if your machine is not properly maintained and lubricated, then this backlash can develop.
If this is happening to you, please download this document: Stepcraft UCCNC Backlash Compensation.
This will show you how to setup backlash compensation in UCCNC so that you can “dial” out any backlash and go back to having perfect circles again.
Is the STEPCRAFT CNC system able to engrave or cut through carbon fibers?
Yes, the STEPCRAFT CNC will cut carbon fiber very well and very accurately. However, due to the hazardous nature of the carbon dust, STEPCRAFT has a Milling Bath that can be used where you cut the Carbon in water and the water captures the dust not allowing it to become airborne. You can see the Milling Bath here: https://stepcraft.us/product/milling-bath-840/ (They are available in sizes for the 420, 600 and 840 machines)
The following videos show you how well a STEPCRAFT can do with Carbon Fiber:
Can I cut carbon fiber on the STEPCRAFT CNC?
Yes, you can. In fact, carbon fiber cuts very easily on the STEPCRAFT. The main issue with cutting carbon is the dust that is created is very hazardous to your health if you breathe it in. To combat this, STEPCRAFT has a Milling Bath in three separate sizes for the 420, 600 and 840 machines. You can find information on the Milling Baths here: https://stepcraft.us/product-category/accessories/system-accessories-accessories/cnc-accessories/
Additionally here are a couple videos that you can watch containing more information on using a STEPCRAFT CNC for carbon fiber.