I am definitely a noob at machine building and will be chronicling my machine build with many questions for the masters thrown in from time to time. I have been lurking the boards for a long time and am now at a point where I am no longer capable of making excuses as to why I have not built my own CNC Router already.
My Router will be based on a number of excellent designs from this very board. I started out on Buildyourcnc.com and found a lot of useful information. I ordered plans but when I got the plans I was expecting plans for the machine he sells on his site but it was a far lesser machine. With the plans though, I was able to sketch out a few ideas for a machine of my own. I found two other machines that really lit the fire under my behind and got me off the board and into the garage once and for all. The first machine I found was the LionClaw LC50 which I do not believe is being offered anymore as I have not been able to get a hold of the gentleman who designed and built it. The other machine was the boards very own Grunblau's CNC Router design. I liked the integrated table design and the absolute beauty of his machine. I will definitely be using the table design from his build and might take a few other ideas from it as well.
I just got my Gecko G540 and am waiting on my steppers and power supply from Keling to arrive in the mail. I picked up the lead screws (1/2-8 2 start) from McMaster Carr and DumpsterCNC's AB lead nuts. I have a 1 3/4 HP Porter Cable motor that I will be using for the spindle. I have so many more parts to acquire like bearings, collars, motor/leadscrew connectors and the like. I also have to pick up some wire and switches for the limits and home switches. This leads into my first of many questions I will have on here. The motors are Keling's KL23H284-35-4BT and the KL-320-36 36V/9.6A Power Supply. The wire from teh G540 to the Steppers should be what? I would like opinions on the best wire to use for connecting the motors to the G540. I am reading a lot about shielded/unshielded and not coming from an electrical background I am kind of in the dark in this area. I also would like suggestions and ideas on how to mount up the limit switches and if I will really need them at all since I can set limits in Mach3 as well as soft limits.
I should have the table structure finished this weekend and start work on the gantry next week. I am taking my time and making sure everything is as perfect as my rudimentary tools will allow. It took me more than a week to get where I am now only because the battery packs die in my little saw way too fast. I finally broke down and went and bought a corded circular saw so all should be good now.
An overview of my machine
table size: 4x3
Z clearance: Shooting for six inches
Controller: Gecko G540
Stepper Motors: KL23H284-35-4BT
Power Supply: KL-320-36 36V/9.6A
Controller Software: Mach3
Lead Screws: 1/2-8 2 Start
Spindle: Porter Cable 691
DumpsterCNC AB Nuts
I invite any opinions anyone has on my system so far and any ideas anyone has that might make my life a lot easier during this build.
Jeffrey