I know it looks like poop. It does work and it is pretty accurate. I also still have a lot to finish on this thing. It has a cutting area of 6 ft by 4 ft. The structure is 10 series 8020 aluminum.

Will have a rotary as a forth axis. Using Mach3 as control software. I still have a long way to go. I have a lot to still learn.

In the beginning I wil start with wood so ordered this chuck here for my rotary:
http://www.pennstateind.com/store/csc2000c.html
Faceplate that chuck will screw to and then attach to rotary:
http://www.pennstateind.com/store/cf6.html
Will make an adaptor for my rotary to the faceplate and use it.

http://www.cnczone.com/forums/attachment.php?attachmentid=39893&d=1183209660
http://www.cnczone.com/forums/attachment.php?attachmentid=39896&d=1183209707
http://www.cnczone.com/forums/attachment.php?attachmentid=39898&d=1183209742
http://www.cnczone.com/forums/attachment.php?attachmentid=39894&d=1183209660
http://www.cnczone.com/forums/attachment.php?attachmentid=39895&d=1183209707

More pics - remember I am not finished. This is a work in progress.

I want to fully enclose everything behind plexiglass when it is finished.
.

Hi - looks pretty good. Are those drawer or skate bearings ?

Hi - looks pretty good. Are those drawer or skate bearings ?

They working pretty well. Right now my main consern is the gantry. Trying to see what will give me the most support. Today will do some engraving on 1/4" thick MDF for practice.

Studysession,

I see that you have fixed motors, so I assume that the gantry is attached to the timing belt itself at a fixed point. Can you show how you made that attachment?

Thanks,

Studysession,

I see that you have fixed motors, so I assume that the gantry is attached to the timing belt itself at a fixed point. Can you show how you made that attachment?

Thanks,

Sure - over the last three days I re-did most everything. When I find the cable for my camera, I will upload pictures. It is much more sturdy and not just down on the floor anymore. Also a bit smaller. Has a cutting area a bit more than 4 ft by 3 ft now.

Here are the pics. I built a wooden base for it all to sit on. As you can see there really isn't much to it.

The picture showing the mounted z-axis from behind looks a bit tilted, it was the camera not the z-axis. I did not hold the camera straight.

One more thing -
I did not make the bearings myself even though I could have. Not a big deal but purchased them from here:
http://stores.ebay.com/HUBBARD-CNC-INC

I also purchased my stepper motors from him as well.

Motor Specifications:
NEMA 23 282 oz-in stepper motor
200 steps per revolution
1.8 degrees per step
Bipolar series Volts=3.864, Amps=2.1, Ohms=1.84, Holding torque=2.0 Nm.
Bipolar parallel Volts=1.93, Amps=4.2, Ohms=.42, Holding torque= 2.0 Nm.
Unipolar Volts=2.76, Amps=3.0, Ohms=0.92, Holding torque= 1.4 Nm
Dual shafts, Main = 1/4" x 20 mm, Back shaft= 1/4" x 15 mm

http://cgi.ebay.com/Stepper-motor-282-oz-in-8-wire-Bipolar-or-Unipolar_W0QQitemZ330199112740QQihZ014QQcategoryZ78196QQtcZphotoQQcmdZViewItem

Finally have amy issues worked out. The cutting is so much smoother now. Attached is a pic of the sign I am cutting out onto balsa wood. It will be small 6 in by 12 in. Good to put on my friends desk at his place of business.

The software used for rendering is VCarve Pro 4.6

Hi,

How are the belt Drives working?

Ernie

Hi,

How are the belt Drives working?

Ernie

I am happy with them.

Realy nice machine! Im just starting mine and want to use belts and pulleys too. Any ideas on where to get the belts and pulleys? And what kind?

studysession

How do you like the rotary table? i'm about to pick one of those up and wanted some first hand feedback.

any comments you can share?

studysession

How do you like the rotary table? i'm about to pick one of those up and wanted some first hand feedback.

any comments you can share?

To be honest, I have not mounted the rotary yet. I have two of them and want to use them. Just not had the time to focus on it. Sorry was not more helpful.

do you have any plans to share please ?

thanks
ronald

What kind of speeds and feeds are you able to get with the belt drive. I am in the middle of making my tensioner and I am going the same route. Also are you having any problems with the motors stalling? Thanks Regnar