RE: [CAD_CAM_EDM_DRO] CAD to G code help

Well, I surely agree that we need more mentors (technical and nontechnical)
in FIRST www.usfirst.org <http://www.usfirst.org/> It is the coolest
program for attracting engineering types since President Kennedy stood at
Rice University in 1962 and announced that 'we were going to send a man to
the moon and return him safely'.

That 3D printer technology looks very interesting. I don't think there is a
limit to what parts could be built for an FRC bot - with obvious exceptions
of electronics and motors. Any structural piece could be "printed". A few
years ago we were at a San Jose, Ca competition and there was a team from
Mojave (Bert Rutan country) that had a robot that was all composite! Pretty
cool.

Re what we are going to build - I do both FTC (limited to TETRIX - erector
set on steroids - and some plastic sheet as well as small aluminum pieces)
The kit has a specific bolt pattern on all the structural pieces which is
cool as far as it goes, but I want to create a few pieces that the kit
really needs. And I think that would be a good place to start with my kids
in CAD,CAM,CNC world. They would be small, not a lot of machining, and
maybe even added to future kits. The nonTetrix aluminum pieces are limited
to 1"x1x0.062(or maybe 0.125) angle, channel, flat, plus several plastics -
ABS, polycarbonate, kydex, . at up to 0.125" with max length of 24". In the
future, this could be amended to include max 0.060 (or whatever is
appropriate) ABS and ??? filament. This year one might get away with
arguing that the ABS in the 3D printed piece started as a 0.030"thick x24"
wide sheet of ABS that was slit into 24" pieces and fed into the 3D printer
- might be a tough sell :o))

Thanks again for suggestions.
We are working on some of the CAMs that have been suggested - fun stuff.
C

Chuck,

Please let me know what I can do to help. Vectric cut2D would be a good
choice to start. $149.00 is a good price. If you update to VcarvePro you
will get most of the $149 back. The students will take to Cut2D quickly. I
will pay the shipping. I have a copy here on a CD.

Please let me know what you plan on making for the contest. I am still
trying to find out what type of material I can machine for the students to
use. I have a very nice 2' by 3' router from www.xyzgantry.com . I try to
use it every day. I built my own controls. For this project I used the new
AC drives from www.homeshopcnc.com.

We need to get more of the users on the list to volunteer to become mentors
for their local high schools robotics contest.

Bob Campbell

-----Original Message-----
From: CAD_CAM_EDM_DRO@yahoogroups.com
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com> ] On Behalf Of Chuck Merja
Sent: Thursday, November 10, 2011 1:02 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
Subject: FW: [CAD_CAM_EDM_DRO] CAD to G code help

Thanks Robert. Vectric looks cool, and some of the "carve" stuff looks like
it might be a hook for our biz and shop teacher to get into the CAD,CAM,NC
world. I'm going to need a bigger format than the minimill to get full
effect though. Im hoping to build a 12 or 18" router before FRC kickoff
(haha - I just read that and realized I have about 6-7 weeks to make that
happen). Anyway, I may have to revisit this in a little bit. OR - should I
head the Vcarve route now so we only learn 1 CAM? I think the kids will get
D2NC for the easier stuff. But I seem to remember a now graduated young
fella who did some jpg to NC stuff - a tiger and mountains and ?? I am
thinking he did that with LazyCAM, since that's all we had. Could that be
the case?

Thanks again.
Chuck


Robert,

If I can be of any help pleas drop me a note. I am also a mentor. I am
working with three teams in Euless Texas. Vectric cut2D may help. I am a
dealer.

Bob Campbell

-----Original Message-----
From: CAD_CAM_EDM_DRO@yahoogroups.com
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com> ] On Behalf Of Robert Blumer
Sent: Wednesday, November 09, 2011 5:36 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
<mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>
Subject: Re: [CAD_CAM_EDM_DRO] CAD to G code help

HI Chuck,
I will chime in here and recommend D2nc,
You have Mach 3 which this will work with.
and its less then $100.00
It come with a 15 day trial be for you buy.
Robert

On 11/9/2011 9:56 AM, ebiz_59 wrote:
> I am mentor of a FIRST (FTC and FRC) robotics team. We have a minimill
that has a retrofit CNC, run by Mach3. We are trying to make a few parts
with our CNC so we understand the entire process. We are having trouble
getting from CAD to G code. An example part would be this 1.25 dia washer
with 0.312 center hole, and 8 (0.140 dia) hole bolt pattern on 0.312 radius.
What's the best way to get from drawing - we can do Inventor or now ems or
iges to gcode. We are finding LazyCAM to be a bit of a challenge.
>
> thanks a bunch, C
>
>
>,___

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