Author Topic: EEVblog #520 - Michael's 3D Printer  (Read 15225 times)

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Offline EEVblog

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EEVblog #520 - Michael's 3D Printer
« on: September 16, 2013, 11:04:27 am »
Michael from the Melbourne Connected Community Hackerspace talks about his large build area modular dual independent extruder 3D printer design project.
Not much electronics talk here, it's mostly about the hardware build.
http://www.hackmelbourne.org/?
http://www.3dprinterbits.com.au/
As usual, if you don't like this type of content, don't watch it.

« Last Edit: September 17, 2013, 03:53:23 am by EEVblog »
 

Offline bexwhitt

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #1 on: September 16, 2013, 01:09:32 pm »
I will be interested to see it running, looks cool, what sort of resolution of print can it do?
 

Offline leafi

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #2 on: September 16, 2013, 04:02:58 pm »
I enjoyed it. I would like to see it operating. It would be great if there videos showing troubleshooting printing problems.
 

Offline jancumps

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #3 on: September 16, 2013, 07:34:39 pm »
Is he a forum member?
 

Offline M0BSW

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #4 on: September 16, 2013, 07:49:25 pm »
Dave would you be so kind as to let us know how he gets on and maybe a video of it working, he so enthusiastic about it , he's got my interest.
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Offline Dave

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #5 on: September 16, 2013, 08:26:04 pm »
Michael's*

Grammar nazi over and out. 8)
<fellbuendel> it's arduino, you're not supposed to know anything about what you're doing
<fellbuendel> if you knew, you wouldn't be using it
 

Offline LapTop006

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #6 on: September 16, 2013, 09:03:57 pm »
I was actually at CCHS last month when the independent dual extruder was being discussed, also shout out to Rob B who you can see at about 6 minutes in.

As with Dave it seems like despite living in Sydney I visit CCHS more often than RoboDino.
 

Offline BurtyB

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #7 on: September 16, 2013, 11:04:07 pm »
I agree, it would be good to see it in operation. He could do with some printed tube connectors though (http://www.thingiverse.com/thing:14061) well maybe not for stability but they'd look cool in yellow :).
 

Offline Paul Moir

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #8 on: September 17, 2013, 03:41:19 am »
Michael's*

Grammar nazi over and out. 8)

"Microcontrollers and FPGA's" is a subforum here, and has been a while.  I'm pretty sure there's a shift occurring in English grammar in regard to the 's.  One of my coworkers abbreviates "cheese" as "CH'S".  Exciting times!

(Those unfamiliar with English's rules:  the English language is defined by use rather than written rules.  For example, the Oxford English Dictionary explains that it reports rather than defines.)


« Last Edit: September 17, 2013, 03:44:29 am by Paul Moir »
 

Offline EEVblog

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Re: EEVblog #520 - Michaels 3D Printer
« Reply #9 on: September 17, 2013, 03:53:09 am »
Michael's*
Grammar nazi over and out. 8)

Yes, I know.
It's a slip of the stupid tablet, and then gets copy and pasted over.
 

Offline npelov

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #10 on: September 17, 2013, 05:15:39 pm »
Excuse my poor english. Where did he buy the aluminum frames - locally or online? I'm searching for cheap frames/axis - I want to build CNC of some kind - maybe for PCB drilling/milling
 

Online SeanB

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #11 on: September 17, 2013, 05:38:47 pm »
Bought at the local hardware store as a frame for making furniture like tables. It is a square tubing and has a set of joiners that have either two or three projections to fit firmly inthe tube, and have various orientations so you can either make a square, and edge or such from simple parts.
 

Offline JoeO

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #12 on: September 17, 2013, 07:21:31 pm »
Michael says the name of the tubing but I can't understand what he says.

Can someone post the name of the company that makes the tubing?  Thanks.
The day Al Gore was born there were 7,000 polar bears on Earth.
Today, only 26,000 remain.
 

Offline Michael Sullivan

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #13 on: September 18, 2013, 11:11:59 am »
Thanks for the responses to my 3D Printer episode.

I will keep people posted as I progress over the next few weeks.

When it is up and running I will do my own video of the machine running.

The 25mm x 25mm box tubing is from Bunnings Hardware in Australia.

MOBSW in am  enthusiastic about it and very eager to see her up and running.

BurtyB those joiners look a pain to print and the 90o uprights would not be strong enough compared to the injection molded version I purchased and all the joliners range from $1.99 to $4.99 so they are not worth the time ptinting but thanks for the heads up.

The electronics I will be using is the RUMBA Board as I need 6 stepper drivers and this board for me is the best in my opinion it has the lot and the large Graphic LCD looks sweat.

I will also be connecting up a raspberry Pi and a LCD touch screen I happen to have from an old Car PC project and running Octoprint or Repetier Server for network printing.

All and any questions are welcome.

Cheers
Mick

 

Offline npelov

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #14 on: September 18, 2013, 10:08:31 pm »
I wander if I can find those Connect-it aluminum tubes with world wide shipping. Or maybe someone from au can buy it for me and ship it. I haven't seen anything like that around or at least not for that price.
 

Offline M0BSW

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #15 on: September 19, 2013, 06:23:30 am »
 Hi Mick,
A really good job your doing , I look forward to the update video :-+
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Offline Michael Sullivan

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #16 on: September 19, 2013, 09:44:00 am »
Bunnings Hardware also sell online.
 

Offline GeoffS

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #17 on: September 19, 2013, 09:53:42 am »
Also looking forward to seeing it finished.
Might motivate me to finish my 3d printer build (Ord Hadron)
 

Offline Michael Sullivan

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #18 on: September 20, 2013, 11:46:17 am »
A fellow Hackerspace member posted this place with good prices for the 25 x 25 tubing

https://www.aluminiumtc.com.au/store/category/browse/qubelok/

Mick
 

Offline mswhin63

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #19 on: September 21, 2013, 01:53:35 pm »
I have been using Queblok for about 6 years, originally purchased from Capral before Bunnings started to carry them.

After a while although still functions well in my van for storage is started to loosen up after about 1 year, The cause I isolated is the plastic inserts start to loosen up from vibrations. Then the aluminium also starts to flare out.

The concept is great and very very economical but I would worry about tolerances changing after a while.

There are aluminium tubing available with aluminium corner blocks. I am thinking these might be better although i cant locate them at this time.
.
 

Offline digsys

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #20 on: September 21, 2013, 03:22:18 pm »
Quote from: mswhin63
I have been using Queblok for about 6 years, originally purchased from Capral before Bunnings started to carry them.
After a while although still functions well in my van for storage is started to loosen up after about 1 year, The cause I isolated is the plastic inserts start to loosen up from vibrations. Then the aluminium also starts to flare out.
The concept is great and very very economical but I would worry about tolerances changing after a while. 
I've also been using the stuff for over 20 yrs, long before Capral and Alcan. The manufacturer has changed names a few times over
the years, as well as the name of the 1" tube system. My entire workshops, including most my home are made from it.
BUT I do agree about "ageing". If you have ANY vibration, it WILL wear with time, sometimes a lot. PLUS, I recently made a new bench
using about 80 fittings, Al drop saws, polishers etc AND the fitting tolerances were all over the place !! Some tight as heck, others
so loose that I exchanged them. I think QC has suffered over the years. If you check the video, EXTRA screws lock the end
caps in place. They WILL SHAKE loose if you don't take precautions !!
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Offline robrenz

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #21 on: September 21, 2013, 03:33:27 pm »
If you are making a permanent assembly of these tube/fitting systems gluing the joints with a high strength epoxy or using a high quality acrylic adhesive like Loctite 325 with activator would greatly increase the stiffness and fatigue life of the assembly.

Offline digsys

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #22 on: September 21, 2013, 11:02:01 pm »
Quote from: robrenz
If you are making a permanent assembly of these tube/fitting systems gluing the joints with a high strength epoxy or using a high quality acrylic adhesive like Loctite 325 with activator would greatly increase the stiffness and fatigue life of the assembly. 
Ahhh yes, but that negates the benefit of this type of construction - ease and ability to change at will.
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Online SeanB

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #23 on: September 22, 2013, 04:53:53 am »
Simplest alternative is then to drill and tap the plastic joins after assembly for a locking screw. Make a small jig out of a scrap piece of the square tube as an alignment tool for drilling the holes in a consistent location and then you can rebuild easily.
 

Offline Michael Sullivan

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Re: EEVblog #520 - Michael's 3D Printer
« Reply #24 on: October 07, 2013, 02:12:41 pm »
Just an update that the wiring is almost complete so we should be only a couple of weeks away from testing and setting up the firmware so a video should follow not long after that I hope.
 


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