RE: [CAD_CAM_EDM_DRO] 3D Printing

Well, there are a few areas to save money.

MODIO is a bit of overkill, you just need enough parallel port for 4 axis's,
limits, spindle (heater on/off) and 'temp ok' input. Dunno how multiple
filaments works, another axis I suppose.

Mach3 is a bit much as well, TurboCNC will work, as will LinuxCNC. TurboCNC
can use a slow PC though, and both can use a free OS.

The stepper is a geared-down NEMA 17, so a little driver like the $15
EasyDriver (http://www.schmalzhaus.com/EasyDriver/) will work.

Slic3r is free.

There's ~$300 off the cost already.

You don't need much CNC for 3D printing, it doesn't need much in the way of
fancy stuff, like contouring, toolchange etc. That's why people use
Arduinos, I guess.

Tony

> I have one of Peter Homans MODIO devices. With suitable connections that
> should also work for the print head.
>
> The problem is that once you start using COTS the price starts to climb
> compared to the REPRAP style.
>
> MACH3 $150
> Stepper Driver $75
> Stepper Motor $35
> MODIO
> Heated Extrusion head with drive connections for above motor. $100

Whatever

> other bits and pieces it starts to come close to the stand alone type that

look like

> tinker toys.
>
> And then the slicing software is still needed. I believe my AlibreCAM

from

> MecSoft can do this. I'll have to ask.
>
> John
>
> "ELS! The Solution"
> Automation Artisans Inc.
> http://www.autoartisans.com/ELS/
> Ph. 1 250 544 4950
>
>
> > -----Original Message-----
> > From: CAD_CAM_EDM_DRO@yahoogroups.com
> > [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Tony Smith
> > Sent: Tuesday, December 18, 2012 1:08 AM
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: RE: [CAD_CAM_EDM_DRO] 3D Printing
> >
> >
> > I think the 3D printer guys all suffer from NIH (not invented here)
> > syndrome.
> >
> > One 'problem' they have is Mach3 et al can't control the head
> > temperature (LinuxCNC apparently can), to which the obvious answer is
> > 'why bother'? Get a $15 PID off eBay or DX and be done with it.
> > They'll send out an alarm for under/over temp, use that to pause
> > Mach3. Feedhold is fine.
> >
> > The rest (XYZ) is standard CNC stuff, the extruder can be the A Axis,
> > it only runs one direction at a set speed so that's not rocket
> > science.
> >
> > Anyway, they all seem happy with their Arduinos and weird & wonderful
> > software.
> >
> > I figure if I procrastinate long enough I can get one of these:
> > http://www.kickstarter.com/projects/b9creations/b9creator-a-hi
> > gh-resolution-
> > 3d-printer (or
> > http://www.kickstarter.com/projects/formlabs/form-1-an-afforda
> > ble-profession
> > al-3d-printer). 15mm per hour apparently, and since it's a projector
> > the speed shouldn't change regardless of what your printing.
> > (And yes, they use
> > Arduinos too, but they're not exactly standard CNC machines.)
> >
> > Tony
> >
> >
> >
> >
> >
> > > Thanks. Great information.
> > >
> > > I'd use RS232 MODBUS to control the external electronics.
> > I can use an
> > ELS to
> > > drive the motor, the electronic half nut input for the closed loop
> > temperature
> > > sensing and control. Or in fact use step/dir inputs and
> > have MACH control
> > the
> > > extruder. All depends on what is available for software I guess.
> > >
> > > I was thinking it would be easier and faster to buy a head
> > with a size 17
> > stepper
> > > motor on it. That stuff is all available for under $100.
> > >
> > > Cheers,
> > >
> > > John
> > >
> > >
> > >
> > > "ELS! The Solution"
> > > Automation Artisans Inc.
> > > http://www.autoartisans.com/ELS/
> > > Ph. 1 250 544 4950
> > >
> > >
> > > > -----Original Message-----
> > > > From: CAD_CAM_EDM_DRO@yahoogroups.com
> > > > [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Tony
> Smith
> > > > Sent: Monday, December 17, 2012 11:20 PM
> > > > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > > > Subject: RE: [CAD_CAM_EDM_DRO] 3D Printing
> > > >
> > > >
> > > > > Any suggestions on which Yahoo groups to follow for 3D
> > > > plastic printing.
> > > > > I don't really want to build a reprap or buy a
> > makerbot. More like
> > > > thinking of
> > > > > adding the head to my CNC JGRO type router.
> > > > >
> > > > > But I'm wondering what sort of rates these units need for
> > > > the X and Y
> > > > axis.
> > > > >
> > > > > Wondering if anyone has substituted their router with a
> > > > heated extrusion
> > > > head.
> > > >
> > > >
> > > > I've thought about it, never bothered getting organised though.
> > > >
> > > > There is/was a Yahoo group for exactly that, unfortunately I can't
> > > > remember the name. SeeMeCNC is one but the group I'm
> > thinking of was
> > > > around earlier than that.
> > > >
> > > > This might interest you:
> > > > http://www.thingiverse.com/thing:5233, goes through the
> > software which
> > > > was the hardest bit. It's not a complete solution as it
> > requires some
> > > > manual code clean-up. Note their speed, 173mm which is about
> > > > 7 IPM. That's pretty slow for a router, the only thing
> > slowing you
> > > > down is the speed of the print head.
> > > >
> > > > Slic3r does Mach3 these days, so have a look at that.
> > You still need
> > > > an additional controller board to handle head temperatures and all
> > > > that. The heads themselves seem to be pretty much sorted
> > these days.
> > > >
> > > > Tony
> > > >
> > > >
> > > >
> > > > ------------------------------------
> > > >
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> > > http://www.metalworking.com/news_servers.html
> > >
> > > http://groups.yahoo.com/group/jobshophomeshop I consider
> > this to be a
> > > sister site to the CCED group, as many of the same members
> > are there, for
> > OT
> > > subjects, that are not allowed on the CCED list.
> > >
> > > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING
> > > THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> > EXCEPTIONS........
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> > > List Mom
> > > List Owner
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> > > Yahoo! Groups Links
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> > ------------------------------------
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> davemucha@...
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> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
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> > it if you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider
> > this to be a sister site to the CCED group, as many of the same
> > members are there, for OT subjects, that are not allowed on the CCED
> > list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> POSTING
> > THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
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> > Yahoo! Groups Links
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> ------------------------------------
>
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> davemucha@... [Moderators] URL to this group:
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>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it

if you

> have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
> sister site to the CCED group, as many of the same members are there, for

OT

> subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING
> THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
> Yahoo! Groups Links
>
>
>