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I've got it now! Thanks for all the help folks. It would have taken me months on my own. Got to love that Louisiana educational system;( Here is what i've got for now.

G21
T4
G00 Z5 X0 Y0
G01...

Thanks for the quick replies. I can see that this problem is much more complicated than a simple explanantion. I am working hard to understand it and I think you guys have brought me much closer to a...

That does make sense to me now why the radius couldn't be less than 5, but I still can't figure out how to make a 90 degree turn with a rounded corner. I've sat for hours putting different numbers...

I've spent the evening reading the Hass manual and am learning a lot, but I just can't get a simple 90 degree turn with a curved corner in cnc simulator. I get an error if I ask for a radius less...

I'm making some boxes with lids. The lids will have a recess that the box fits into. Of course the corners of the recessed portion of the lid are rounded just like the mill I'm cutting the recess...

I slapped mine together in about three months working in the evenings. It's accurate enough for everything I want to do. Finding parts like bearings at a reasonable price was the hardest part.

Well, I made it here in one piece. Thanks for the tip on rhino. I will post some pics once I get my machine up and running.

I've opened the files using alibre, but they don't open well and it won't let me go to 2d and export as a dxf. Oh well, I have a year to figure it out;) If anybody sees some miniature military weapon...

Yeah, I went there and downloaded the IGS files a couple of days ago, but I don't have anything and can't find anything to convert the igs to dxf so that I can use them. I also need the rest of the...

I'm taking my CNC router apart and putting the essential parts in my duffle bag tomorrow. I'm taking it with me to Iraq so I can make items for my unit. I want to be able to make plaques and...

I've been cutting home cast aluminum (pop cans mixed with intake manifold) with a 4mm end mill. I've cut up to 25mm per minute at about 15,000 rpm (half the max speed of the rotozip) with no coolant...

Thanks. The simple answers are sometimes the hardest to find because we assume that it's common knowledge. I appreciate you taking the time to reply.

Randall

Did a search but can't figure out how to add comments in g-code. What prefix should I use to keep turbocnc from trying to execute my comments? Thanks!

I think I'm getting a better understanding of how it works. I'm using Turbocnc on a homemade cnc router so I'm thinking the I and J are going to be necessary. I'll have to do some experimenting....

I am building a box with a lid. When I cut the inside of the box out I get a nice radius on each corner since the mill is round. I am cutting a lid to fit down in the opening with edges that are...

I thought I saw a post about just such a file and I've been searching all over the site for it. Is there one? If there is, where is it?

Thanks,
Randall

Oddly enough, I don't have that file anywhere on my computer. Was it supposed to be installed by the setup program? Makes me wonder what else is missing. Thanks again for trying to help me out. I...

I just figured out what's wrong. I stayed up all night trying to get it to work and was getting pretty frustrated. I was wondering why I had never tried to install it before. It seems like a great...

I went so far as to delete even the setup file from my computer and then downloaded it again. I'm making sure that the setup file is on the same drive as the location I'm installing the program. All...

Not really a useful program Lance. It was just to let me know that I could create a DXF file. It's just a form with the ability to change a few parameters and create a single polygon that is saved to...

I'm not a programmer, but I taught myself how to do some stuff in VB4. I started looking into how hard it would be to write my own CAD/CAM program and figured the first thing I should check into was...

I downloaded VS3D and when I open it I get a message that there was an error during the license check. Any hints on what to do so I can get my host ID and do the 30 day trial. I'm evaluating deskart...

Why not use a non conductive material?

Sweet, I wish I had the time (and a stronger machine) to do these things for fun. It looks almost as though you have an airfoil shape to your vanes. Did you do that from scratch or is that a mod of...

No, you have it right, for the most part. I ramped the vanes so that the water can get in and they don't go all the way to the center post. I am going to build one with no ramping and the vanes all...

Well, I stayed up all night last night and put the file below together. It's a G-code file for an impeller with seven vanes and 1 inch across. The distances in the code are in millimeters. I used...

So, you've already cut yours? Any pictures of how it turned out? This is my weak spot right now. Figuring out how to bring my idea to G code. I can do simple lines OK, but doing anything more complex...

Damn Bubba,
You seem to always be pulling my butt out of the fire. I'm trying to build one a little bit smaller. Do you think I could just scale the whole drawing and then develop the G code from...

I need to design a small impeller out of delrin or aluminum to pump water. It only needs to be a simple centrifugal impeller that will be completely submerged. Is there an easy way to figure out the...

Did the first operation of my part production. I cast a rough 3"X6" block of aluminum and machined one face flat using a 4mm end mill. It took forever at 20mm per minute. At least I think it was 20mm...