I need some input on micro stepping vs. gear reduction.
I am in the process of building a CNC router. This project started as a tool for me to use in my marine electronics business, but the interest from other contractors and carpenters has been so great that I will be running a job shop.
I know that for commercial work buying a turnkey CNC system would be better than building one, but with the economy the way it is and my business doing so poorly, buying a CNC is simply not an option.
So my goal is to upgrade my existing prototype so that I can do light commercial work. Accuracy and repeatability are my main goals with speed being second. To be honest, if I can bill an average of 2 hours a day it will completely turn my business around.
Here is my CNC machine as it stands now.
The motion control is via Keling KL23H286-20-8B 425 oz. stepper motors and KL-4030 drivers. I am currently using the micro stepping to give the X and Y axis 1420 spi. I am using #25 roller chain for the drive system but I am looking to upgrade to rack and pinion for better accuracy when I build the permanent 80/20 table.
My question is what are are the pros and cons of micro stepping vs. gear reduction for increasing stepper motor resolution?
I have seen some gear reduction transmissions such as the Motiontek GR-231010H as well as some timing belt gear reduction setups, and I am wondering if they are worth the time and money, or if simply micro stepping is the way to go.
Please feel free to post opinions, experience and links to other threads.
Thanks
James