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Wireless printing add-on

jjshortcut
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Published on February 22, 2011

Description

This is my wireless printing add-on for my awesome Ultimaker. With it I can print wireless via bluetooth. The range is about 5 to 7 meters, but if the distance gets longer, the signal gets crapy'er and the speed of printing suffers.

This add-on can be used with any 3D printer, if the printer uses serial communication. The module I used is this one: mdfly.com/index.php?main_page=product_info&products_id=63

If you do not want to have to make the PCB you can buy the break-out board as well:
mdfly.com/index.php?main_page=product_info&products_id=428&zenid=bka7i29d1id7h20ki7iop64ov7

Here's a movie the thing:
youtube.com/watch?v=oXpfKqx7Uhc

I also made a version which includes a LCD screen, that version is more dedicated for the Ultimaker electronics V1. For more info check out my blog at: jjshortcut.wordpress.com/2011/02/19/wireless-serial-bluetooth-module/

Instructions

1. Buy the bluetooth module (check ebay)
2. Make the PCB, etch or mill it or whatever your technique is
3. Solder all together
4. Program the bluetooth module (in AT mode)
5. Remove unused usb cables
6. Connect 5V,GND,TXD,RXD
7. Connect bluetooth module to computer with bluetooth dongle and make bluetooth COM port
7. PRINT WIRELESS!
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polymaker on June 28, 2011 said:

Can you explain steps 4 and 6 in more detail for the non-electronics gurus here?

jjshortcut on June 28, 2011 said:

Hi,

I'm not sure what PCB (of the 3D printer) u use but for programming the AT commands it's handy to check: http://www.elechouse.com/elech...

The AT commands are given trough a serial port, for example one can use an Arduino and connect the TX of the arduino to RX of the module (WITH resistors!), and connect the RX of the Arduino to the TX or the module. Also use give the module a supply voltage of 3,3v (or with the voltage regulator 5
volts) and connect the ground.

Then in the terminal type the commands, make sure to use a buadrate of 38400, 8 data bits, 1 stop bit, no parity bit, no flow control.

For connecting the module to your 3D printer PCB use the same connections as described above.

I hope this helps!

Vis0r on March 23, 2011 said:

The website you linked also has one of these modules with breakout for only $13.95

http://www.mdfly.com/index.php...
&
amp;products_id=428

jjshortcut on March 24, 2011 said:

Yeah, I already mentioned that in my post? (second link)

Roboteernat on February 24, 2011 said:

these modules are also availabe from chine through ebay, i have bought several of these for projects of mine, and they are fab - cost about
£10 when including postage. i got 2 for £7

jjshortcut on February 24, 2011 said:

That's how I got them as well, ebay. A disadvantage is that they cost much more when you want them on a break-out board... That's why I made a library and break-out board myself.

whosawhatsis on February 23, 2011 said:

Has SD card support finally been added to the 5D firmware for this, or are you actually trying to stream gcode over Bluetooth in real time. 300mm/s printing without an SD card is hard to believe, 300mm/s while streaming gcode over bluetooth would make your prints unrecognizable.

kliment on February 23, 2011 said:

Hey, I have a prototype SD printing setup with the Tonokip firmware that I'll be releasing soon. You can see it printing at http://www.flickr.com/photos/p...

Kliment

jjshortcut on February 23, 2011 said:

Hi,

I'm streaming live, and the quality of the prints is excellent. So I'm not using a SD-card. Check out my video, maybe not to clearly to see but it works great.

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License

Wireless printing add-on by jjshortcut is licensed under the Attribution - Non-Commercial - Creative Commons license.

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