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To answer question number 2. You need to have dual side drive to prevent racking.

Now, this does not necessarily mean 2 motors, you could use a driveshaft to connect both sides. You should also...

I dont mean to knock you or anything, but i highly doubt that is a good material choice for a router. I would not expect you to be able to machine anything more than foam with all the flex it will...

Yeah i am currently looking into Rack and Pinion.

Sorry for the late reply.

#23-305-DS8A 425oz-in bipolar rating, 305oz-unipolar rating, 4.2v, 3A, 200 S/R, 3.2mH, Size #23, Dual Shaft, 8 wire

3 or 4 Axis Unipolar Chopper control.
Individual...

Or you can just reverse the STEP direction in the software. (Mach or EMC2)

Since it uses the parallel port I assume it uses a step and direction pin like most others.

If this is the case just download the trial version of Mach3 or EMC2 and play with the pin settings...

Ok, I am building this CNC Plasma cutter. Its running a Hobby CNC 4AUPC rev2 driver, Hobby CNC 305oz Motors and 1/2-10 single start leadscrews and a 36v power supply. It has dual motors for the...

$2500 is an amazing deal compared to other solutions I have seen.

Unfortunately I am the type of person that will not buy something I can make myself. Sometimes this ends up costing me more money...

While i am sure it would be better if they were on the outside away from the dust and smoke I am also sure it will not be a problem. The anti-backlash nuts also appear to be self cleaning. On first...

I am looking for some FREE CAM software in order to do testing of my machine. I will purchase CAM software later after i do some research, but I am not ready for that yet.

I can (and prefer to)...

OK finished the motor wiring but fried the X Axis driver somehow, swapped to the Z Axis channel for testing.

Installed a pen and drew some sort of snowflake thingy.

Heres the video. YouTube -...

Cell phone pics of my progress thus far:

http://heavenswail2.com/temp/cnc/IMAG0059.jpg

http://heavenswail2.com/temp/cnc/IMAG0060.jpg

http://heavenswail2.com/temp/cnc/IMAG0061.jpg
...

Solidworks Images:

http://heavenswail2.com/temp/cnc/solidworks1.png

http://heavenswail2.com/temp/cnc/solidworks2.png

http://heavenswail2.com/temp/cnc/solidworks3.png

Let me start off by saying that I have always wanted a CNC machine since taking a CNC class at my middle school nearly 15 years ago.

About 3 years ago I was going to build a Woodworking mill out...

Donnelly, the best tip I can offer is to use Solidworks combined with this website:

Free CAD Models, Free 3D Models from 80/20 Inc.

Input the model number of the 8020 piece you are looking for,...

Thats what I am thinking too.

Basically I have spent time on the EMC IRC channel and talked with some of the people in there including some devs. It seems like they have concluded that EMC is...

Well, they have a slight load on them. Basically a 6ft section of threaded rod and the friction from the nut allows them to run to 60ipm without locking.

With no load they lock at anything over...

Just an update, I have become proficient at using Solidworks, Lazycam and MACH3 together and at this point I feel that I could do anything I want with this combination....

But I really want to use...

I have yet to get anything from solidworks running under EMC2. I have successfully gotten a .DXF file from solidworks into MACH3 using both Lazycam and Ace Converter.

When I try to use the same...

Thanks guys. That info really helped, I have everything running smoothly now at 8x Microstepping and I have gotten it up to 60~ IPM jograte running on just a 12v testing powersupply. Any faster on...

I am almost done with my first CNC machine which I will use to build Joes 2006 model. I would like to cut out a few pieces to finish my First CNC machine. I drew the parts up in Solidworks, but now I...

Hello, I am completely new to the CNC world. I have bought and assembled a 4AUPC kit with the 305oz motors from HobbyCNC.com, it works great i suppose. I am using the latest version of EMC2 (which i...