Dinosaur skeleton, and other models, DXF files.

[ger21]

I tooled and machined the TRex.dxf file I posted on a Northwood Router I have at my workplace. I use autocad 2002 and the file was not an iso file.

What Jeff was saying is that the .dxf looks like everything was tilted and when saved, it was projected onto the xy plane. Autocad won't do that when you save in an isometric view, but that's what it look like. Download it and look at it again.

[HomeCNC]

Jeff, you're using G41/G42 for that, right? Also, what did you create the .dxf's in? They're some weird type of polyline that I can't seem to modify or edit in any way. Were they splines? Just curious, thanks.

I used MasterCam to produce the Gcode. I believe there was G41/G42 in the code. I used Cadkey to produce the file. The curves are (entity type 112 splines). I bet that when converted to DXF it lost the splines. I can save as IGES if you want.

[ger21]

I used MasterCam to produce the Gcode. I believe there was G41/G42 in the code. I used Cadkey to produce the file. The curves are (entity type 112 splines). I bet that when converted to DXF it lost the splines. I can save as IGES if you want.

AutoCAD has a method of using polylines to emulate splines (simple explanation). This is sort of what it did. Older versions of .dxf files didn't support splines, so this was a workaround. The files are fine the way you have them, I just had never seen an entity like those in AutoCAD before. Thanks.

[ynneb]

Home CNC, I have finally cut the Raptor that you submitted. I am having a hard time tryng to work out how all the pieces go 2gether. Do you have a photo?

[ynneb]

Please disregard the last request. It took longer to assemble this than it did to cut it (40 minutes).

[CNCRob]

Looks great ynneb, what material did you cut it out of

[JavaDog]

Wow Benny, that thing is a monster! I really want to make one of these out of acrylic when I finish my machine...

[ynneb]

This time I went too far, Its just too big. Where the hell will I put this ?

He has a wing span of 2.9M ( 9 foot ish)
Nose to tail 2M

[phillby]

Hey Benny
I agree you may have gone too far, but it looks great.

You posted a picture of a shark in the first post, I am nealy finished drawing it in Autocad. I should finish it in the next couple of days.
As I haven't finished my router yet I can't test it so it may have problems. I hope not.

BTW I have made it less than 300mm. I thought it was a desk ornament.

I will post it as soon as it is finished in DXF format.

Catch Ya.

[HomeCNC]

Benny,

Turn the tail up on the Raptor. That is the only thing I can see that was not correct. But it does not look bad down as well

[JavaDog]

This time I went too far, Its just too big. Where the hell will I put this ?

He has a wing span of 2.9M ( 9 foot ish)
Nose to tail 2M

Nice! I bet you some school or library would pay you a nice little penny for that monster!

[phillby]

Well I drew up the shark.

I have included mirrored parts for the other side of the shark so if the material is finished on one side only, the finish will be out on both sides of the model. I have drawn it to be made from 3mm stock and have not allowed any clearance for fit.

If someone uses it please post the Gcode and a picture. Maybe the dxf the G-code and the picture could be included in a zip file.