Re: [CAD_CAM_EDM_DRO] "G" Im still Lost

Hi Troy,

Good to meet you! Here's the link:

http://f5.grp.yahoofs.com/v1/wDG-QL2udjG8qA5hR5tdAwzyyRK5CcUKoQriQ9dL7osrdZUUUwQo-qMT-xaTVVF6Z9rc5FnlL5tgdMWcYlED5A/CNC%20for%20Hobbyists.pdf

But that's libel to be a pain to use (I think Yahoo does it on
purpose!). I'd go here, then select "CNC For Hobbyists".

http://groups.yahoo.com/group/SherlineCNC/files/

Alan KM6VV



testfly@... wrote:

> Hi Alan,
>
> Troy Here sorry.
>
> Can you give me a direct link to the white paper. I can't fine it. "G" sorry
>
> Troy
>
>
>
> ----- Original Message -----
> From: "Alan Marconett" <KM6VV@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Wednesday, June 02, 2004 12:32 PM
> Subject: Re: [CAD_CAM_EDM_DRO] "G" Im still Lost
>
>
>
>>Hi test (name?),
>>
>>Check out the white paper "CNC for hobbyists" in the SherlineCNC list's
>>files. It discusses rounding the corners.
>>
>>You really need to get studying your CAD program. You can draw the
>>square, or the plate, and then the toolpaths. The toolpaths are most
>>easily done if you use the "offset" feature. Straight lines are just
>>offsets, arcs are offset and have a larger radius. So if the radius of
>>the corner was 1/2", then the new radius needed is radius + (1/2 the
>>tool radius).
>>
>>Lines you've figured out are G01, arcs are G02 and G03. There are
>>different arguments for arcs, I,J,K are offsets to the center of the
>>arc. These offsets can be absolute or relative. The finish position is
>>specified. Not all that hard! Read the white paper, and try out the
>>examples!
>>
>>Get a demo of FlashCut, you can get a good graphic of what your code is
>>doing. Get your DXF files working, and it will import DXF and generate
>>Gcode FOR you! This worked for me!
>>
>>You've already got some CAD programs, but did you know that you can get
>>a CAD only version of Vector CAD/CAM for low cost, which is MADE for
>>generating Gcode! It keeps line segments and arcs in order, and creates
>>the tool paths FOR you. Greatly recommended!
>>
>>After you've checked out the white paper, give us the dimensions of the
>>2nd part (plate?) and we can quickly draw it in cad and generate a tool
>>path for you. What cuter size are you using?
>>
>>You don't mention the controller program and mill you are using.
>>
>>Alan KM6VV
>>
>>
>>
>>testfly@... wrote:
>>
>>>I am really going crazy here trying to figure out a few (what I think
>
> should be) simple things to do.
>
>>>Here is what I am trying to write the G code for and what the parts
>
> should look like.
>
>>>http://testfly.0catch.com/want-to-cnc/part1.jpg
>>>http://testfly.0catch.com/want-to-cnc/part2.jpg
>>>
>>>If I could write the G code for them I would be able to cut many parts
>
> out by cutting and pasting the G code. That is if I wrote the code in
> incremental and added a block to move the tool over for the next cut. right?
>
>>>I have the G code for part #1 But I do not have it rounding the corners
>
> of the part.
>
>>>I am now trying to figure out how to get the corners round.
>>>
>>>As for part #2 If I could figure out how to make the two curves (half
>
> circles) I could connect them with no problem.
>
>>>I do have some Cad programs that I downloaded demos for and I also
>
> bought Design cad 14. But, I can't make heads or tails on how to draw in
> them. I guess I have drawn to much in paintbrush or paint shop pro.
>
>>>I had seen where someone was talking about corel 10. I have 9, 10, and
>
> 11 but have never used them.
>
>>>I am sure that the best thing for me to do is to learn to draw in a cad
>
> program and draw the parts there.
>
>>>But, again I just can't figure it out.
>>>
>>>Any more help would be Great.
>>>