|
A while back, I was introduced to a X-Y table for the drill press. Now if you know me, you know how obsessed I can get with perfection. My wife can tell you a story about when I was working on finishing my basement and I moved an entire wall to gain 4 inches more floor space in the downstairs bathroom. So when I was introduced to the X-Y table and a drill press, I got into being able to place a hole or cut a slot very accurately. I, however, was not impressed with the rigidity the drill press when trying to mill out a slot so I started looking into getting a manual mill. It wasn't long until I found all kinds of web pages on small benchtop CNC mills. After watching You Tube, I quickly came to realize how much more could be done if I only just sprung for a CNC mill instead of buying a manual mill.
Okay, I decided I was going to spring for the CNC mill.... I cancelled my order for a manual mill from Grizzly and searched for a CNC mill in my price range...
I ended up ordering a Syil Super X3 CNC mill from Syil America.
http://www.syilamerica.com
This seemed to be a popular benchtop mill and majority of peopled on the CNC forums seemed to like them. Accuracy
was more than adequate for projects I could see in my foreseeable future (especially since I know didly about CNC).
So I placed my order and an excruciating month later, the mill shows up in my
garage... Just like Christmas.
Uncrating the beast was an effort all by itself. I tried to move it with Tami and I off the pallet. NOTHING DOING. This thing weighs 445 pounds and there is really no good way to grab it. So it stayed on the pallet until I got an engine hoist.
I anxiously hooked it up and tried to get it working. There are a bunch of wires you have to connect prior to the picture you see below. Anyway, after doing all the assembly, the mill still wasn't working. I putzed with it for several hours and couldn't get it to communicate with the computer. In a moment of clarity, I did end up solving the problem.
Anyway, the mill is a good looking unit.
Since I couldn't get it working right away, I started taking it apart. You are supposed to do that to clean all the packing wax / grease off.
Syil overall does a nice job putting this together. It looks more professional than some homemade CNC mills I have seen that have wires and boxes going everywhere.
I didn't like the fact tha these wires were coming through that hole without some type of bushing. Since I am building a plane, I have lots of snap bushings. Snap in a bushing, wires protected, WooHoo.
The reason that I couldn't ge the mill to communicate was this little wire right here. It was tucked in behind and not easily seen. This is the primary wire to 120/5 step down transformers that feeds the CNC control board. Anyway, after I re-landed this wire, the CNC mill fired up and worked like a champ.
I ended up also ordering a new computer to control the mill and run the Mach 3 CNC software. I thought about using a laptop, but there were complaints out on the net that stated the 3.3 V system of a laptop didn't always communicate well with the CNC control equipment on the mill. Since Mach 3 and the BobCAD software requires (prefers) Windows XP, I ended up having to order a Dell computer online. I looked for a Windows XP machine at the usual retail stores in town, but everything has been converted over to Vista. Anyway, I ended up with a Dell Vostro 400, Core 2 Duo, designed for Windows XP and sporting a 22" widescreen LCD monitor. Woohoo. It is a pretty snappy machine and has run the Mach 3 software and BobCAD software without any problems.
This is the table I built to set the mill on. I could have purchased a steel stand to put the mill on, but I wouldn't have had any place to put tools, store vises, etc. This thing is one beefy table.
I found pictures of this table in the CNC forums on the net. The top is two 3/4" plywood sheets glued and screwed together. I set the plywood on 4 x 4 timbers with steel corner brackets.
I decided to embed a Nebraska Aeronautical Map with pictures I have taken of people I have given rides to so far. I embedded this under an epoxy coating that is nearly 1/8" thick. I have used this table for about 4 months now and so far, the top is holding up great. Since the mill was mainly purchased to help me with the plane project, I only thought that it was fitting to include aviatoin into the table...
The mill is around 445 pounts and table holds it with great rigidity. I also added scrap from the 3/4" plywood to 3 sides to give additional rigitiy from swaying should the timbers get "sloppy" in the steel corner brackets. There are some 200+ screws holding all the steel brackets in place. This bench is held together like the old preverbial "brick shit house".
|