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Author Topic: Using CNC as a 3D Printer  (Read 26866 times)

CLaNZeR

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Re: Using CNC as a 3D Printer
« Reply #15 on: June 04, 2014, 11:44:33 PM »
A couple of years ago I converted one of my CNC machines to a 3D printer and posted the step by step on my forums.

Your welcome to check it out.
http://www.ukcnc.info/forums/forumdisplay.php?8-RouterStrap-3D-printer-using-your-own-CNC-machine

Was a good way to get to grips with 3D printing and what is involved. Software/firmware has moved on a bit since then though.
You soon realise that converting a CNC machine can work, but so slow and noisy using ball screws. You will soon want to move onto rapid movements using belts.


Then moved onto dedicated prototype printer but using commercial linear components.
http://www.ukcnc.info/forums/dprinter.php

We use this prototype daily for printing stepper covers etc etc.

This year we are going to release a more compact design 3D printer and also a Scara Arm 3D Printer which is cool to watch.

Cheers

Sean.

Marsing

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Re: Using CNC as a 3D Printer
« Reply #16 on: June 05, 2014, 07:51:08 AM »
Yes you did.  How did someone manage to hook interrupt zero in a Windows machine?

AFAIR. the only way, he must deal with very ugly language, needs about 5-10 minutes each time to compile and test that driver (win-driver), also single space unseen from text editor can cause blue screen. "Windows Driver Kit" is free download from windows to experiment with it.  there is a tool included in WDK where we can see how many int0  fired in seconds, normally, it fires at 100 hz or 1khz, while when mach3 was running ,we would see 25khz or 30khz. i read about real time OS which maybe provide exclusive access to real time timing but never try it.

TommeyLReed

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Re: Using CNC as a 3D Printer
« Reply #17 on: June 05, 2014, 10:52:16 AM »
My cnc is running on the Lenux system, I believe it's better then Mach3 on windows.

I would not have a problem with 3D printing.

Tom

MarkE

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Re: Using CNC as a 3D Printer
« Reply #18 on: June 05, 2014, 11:55:24 AM »
Windows goes off with long delays so often and easily that it's pretty rough to do anything with it that can't tolerate multiple seconds of latency at least now and again.  You are a lot better off with any version of Linux.  There are real-time Linux distributions out there that can make Linux pretty tight.

memoryman

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Re: Using CNC as a 3D Printer
« Reply #19 on: June 05, 2014, 03:38:04 PM »
Because Windows is not a deterministic system, Delta Tau and others use a separate processor on their motion control products. Windows is used as a HMI only.
I have Linux cnc installed but not used it.
There was a 'PC' based cnc by MDSI (bought up by Tecumseh) but it was more expensive than Delta Tau, Galil  and similar companies.
ASAIK, Mach3 is a fine product for all but high end machines.

TommeyLReed

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Re: Using CNC as a 3D Printer
« Reply #20 on: June 07, 2014, 04:43:18 AM »
This is my experimental extruder/temperature controller.

https://www.youtube.com/watch?v=_IBB015Mx-o
« Last Edit: June 07, 2014, 01:24:00 PM by TommeyLReed »

lancaIV

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Re: Using CNC as a 3D Printer
« Reply #21 on: June 07, 2014, 09:42:24 AM »
I want to get a 3D-machine which errect the www.jovoto.com https://www.jovoto.com/projects/300house/ideas
                                         IPOD https://www.jovoto.com/projects/300house/ideas/12491
                                         idea in several hours !


                                             This would be a comercial solution:
           http://www.impactlab.net/2014/05/28/buy-a-3d-house-printer-for-16000-print-a-house/


                 After 50 years "automatic shelter production machine" I want my home ready  ::) ;) ;D 

http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19650303&DB=EPODOC&locale=en_EP&CC=GB&NR=985099A&KC=A&ND=1

and not M-I-B-Y http://worldwide.espacenet.com/publicationDetails/mosaics?CC=DE&NR=19938141A1&KC=A1&FT=D&date=20010301&DB=EPODOC&locale=en_EP

wmbr
        OCWL


p.s.:
probably this infos help to find the best /cheapest-saviest solution
http://www.overunity.de/206/freedom-housecar-project/#.U5LDztner1E beginning with answer 4
 

TommeyLReed

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Re: Using CNC as a 3D Printer
« Reply #22 on: June 09, 2014, 03:57:00 AM »
This is a update on my 3D Printer extruder/heater controller test run:

https://www.youtube.com/watch?v=xGCb4drbBM4

I have to update my heating tip, this was a 4mm tip from a 1/4 bolt.

I have brass I can machine and 3mm drill bit.

Tom

TommeyLReed

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Re: Using CNC as a 3D Printer
« Reply #23 on: June 09, 2014, 07:39:31 PM »
This is my extruder super high temperature tip design for plastic or liquid metal.

https://www.youtube.com/watch?v=RIoUs6mnFHs

tom

memoryman

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Re: Using CNC as a 3D Printer
« Reply #24 on: June 09, 2014, 08:13:59 PM »
Hi Tommey. I like the idea of using a sparkplug. Did you say that drilled the hole 6 mm or .6 mm? I use .16 mm in my (used a carbide pcb bit); how well would that drill?

TommeyLReed

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Re: Using CNC as a 3D Printer
« Reply #25 on: June 09, 2014, 08:40:54 PM »
I had a .6mm from my last tip, now it's .4mm.

Thanks...

memoryman

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Re: Using CNC as a 3D Printer
« Reply #26 on: June 09, 2014, 08:53:54 PM »
Of course I screwed up; meant 0.4 mm, .016".

TommeyLReed

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Re: Using CNC as a 3D Printer
« Reply #27 on: June 09, 2014, 09:01:50 PM »
I think you could drill that small, but also it may put a load on the feed and just jam up.

 tom

memoryman

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Re: Using CNC as a 3D Printer
« Reply #28 on: June 09, 2014, 09:13:59 PM »
I think you could drill that small, but also it may put a load on the feed and just jam up.

 tom
Has not been an issue with my Ultimaker.