Semi-Automatic Rostock Max V2

[teoman]

Well, I will need to do a few parts for work. About 50 of them, so I would prefer not to babysit the machine.

So what I was after was this: first of all, being able to start prints remotely.

To achieve this, got myself a banana pro and installed banaian on to it. And repetier server and motion to be able to get images from the webcam.

This turned out to be rather nice. Even when i am in the house, it is much easier when you do not have to getup to start a print.


Next i decided to tackle the oozing problem. I has seen foshon's implementation of an arm with a brush that extends above the build platform and cleans the nozzle. So i imitated that idea. (I had posted images of clips that i designed for the towers).

Servo Holder

TowerPro 995 servo

Finally came the hard part, getting the prints off the build plate. I had an idea for that, and since i had the parts at hand i decided to try it out. The idea was to have a ducted fan from an RC jet blowing on to the build plate, this fan provides about 500g of thrust. My inital experiments were promising. I managed to blow some parts off the build surface.

Arm + Fan

Next i needed a way of also controlling all of my gizmos, and preferably not only using my remote setup but also from the sd card.

To achieve this, I modified the repetier firmware and added an auxiliary arudino uno to the system. My system should now accept the following additional g-codes

Banana Pro Side Cover Empty

Banana Pro Side Cover

/*
* - M700 S<value> : The Nozzle purging arm, S0 for retract, S1 for extend
* - M701 S<value> P<value>: Part blowing fan, accepts S value between 0 and 255. P value indicates x100 milliseconds for the fan to remain on
* - M702 S<value>: Switch on or off the 220V going to the 24V power source.
* - M703 S<value>: Switch on cooler relay S0 off, S1 on
* - M704 S<value>: Start or Stop Extruder Cooler S0 off, S1 on.
*/

In addition to this, as my printer resides completely inside an enclosure i wanted a means to cool my electronics. I also wanted means to further pump heat in to the chamber. From my arsenal of stockpiled gadgets i got a peltier cooling device.

Peltier Cooler

With the added heat to the chamber i intend on also cooling the extruder motor with a another peltier device.


I redesigned the side covers so that one side can house the peltier cooler while the other panel holds the arduino, the banana pro and the relays. First try turned out ok but it does have some minor problems like the relays do not fit because i forgot the solders pins of the relay.

This is still work in progress. Still need to assemble it all and do a couple of tests. I will probably need to rewrite this post at that time aswell as in its current form it is a rather quick and shoddy mind dump.

[Eaglezsoar]

Your mods are intriguing and I hope you will keep the thread active with updates. There is a lot of information to be learned from what you have done
and I believe that we can all benefit from learning more of what and how you have created these mods.
Great work!

[teoman]

Thank you for the kind words.

Screenshot of the repetier server

This is what the webcam view of repetier server looks like.

It seems that for the webcam view to be functional i need to remove the ring light and add lights to the sides, behind the camera. So new G-codes will be necessary.

And here are some other views from the software.

[McSlappy]

Genius mate. Pure genius.

[crocky]

Looks like you have got it working pretty well now

I have done a pretty similar thing with a raspberry Pi 2 and repetier-server and did a print out that took 27 hours and I think it only had a couple of short pauses in about middle of it, just let it do it's thing and it was fine...

I haven't got a wiper sorted yet and I like the idea of a servo controlled by server software.... Hmmmm....

The webcam lighting looked about the same as mine with the angel eyes so we need to get them sorted too!

I have a different thing to do the video.... Still working on that part.

Good work

[teoman]

I was not able to figure out what the travesty was but it got worse on a smaller print. And there were blobs everywhere. The processor is not loaded at all. Only %10 usage. I might try connecting it directly through serial without usb but i did not see where the UART is mapped on the bananian/banana pro.

It midnight and I just got home from work. So no playing tonight

[Jimustanguitar]

I like your Rasta Arduino Uno!

[teoman]

Those are actually pretty nice. Power and ground pins everywhere.

[teoman]

Stronger power supply aswell. Can be powered up to 23V if i remember correctly.

http://www.elecfreaks.com/store/freadui ... 695481b221

Edit: edited to remember correctly.

[lightninjay]

looks like German flag colors to me...