26 (edited by JeremyLGSiegfried 2017-02-18 23:06:11)

Re: Anyone tried making composites for a Filastruder?

Well I found the real culprit today.
When I plugged in the original 12v power supply (to try and do a normal run of ABS over the weekend), and turned on the motor, the same on/off cycle occured, but faster (this supply has a better recovery time). Since this usually indicates a short when the ratings match, I began testing the components on the Filastruder via the stall protection board:

  • Direct 12v contact to the board's input=same power cycling (problem on the motor circuit)

  • Removal of all wires at the board's input+12v contact=normal stall board and motor operation (problem at one of the disconnected wires)

  • Tested one of the wire pairs=motor fan working (filament fan has a short)

I'm just glad that I made one last check before I actually purchased a new power supply.
I'll probably still get it, just to be safe. (18v 10A supply for $34; sounds fair to me!)

Filastruder 2607 w/ Filawinder @1.75mm.
Dual-extruder MaxMicron Prusa Mendel: RAMPS 1.4 w/ Repetier Firmware+Full Graphic LCD Controller, stock hotends, 3Dator extruders w/ MK8 gears, insulated enclosure w/ 2 heat lamps, RPi 2B w/ Repetier Server.
0.1-0.2mm layer height, heated bed w/ PEI surface, inductive-sensor autolevel, 0.5mm to 0.2mm nozzle diameters.

27

Re: Anyone tried making composites for a Filastruder?

I fixed the fan wire today, and got the Filastruder running again, but my progress was halted by the kapton tape that I used to attach the thermocouple to the nozzle. The size I used (1/2 inch) was too wide for the nozzle, and since the adhesive would't stick to the nozzle correctly, I had to wrap the tape onto itself, making a ring of hanging tape beyond the nozzle's face. This came back to haunt me today when I had to clean the nozzle face so the filament wouldn't curl onto itself.
Long story short, I'm waiting for the nozzle to cool down so that I can reapply kapton tape the CORRECT way.
I'm actually getting salty with myself and the machine for all the user errors I've caused. At least the machine will be more than ready to handle all of the regrind I'll be feeding it.

Filastruder 2607 w/ Filawinder @1.75mm.
Dual-extruder MaxMicron Prusa Mendel: RAMPS 1.4 w/ Repetier Firmware+Full Graphic LCD Controller, stock hotends, 3Dator extruders w/ MK8 gears, insulated enclosure w/ 2 heat lamps, RPi 2B w/ Repetier Server.
0.1-0.2mm layer height, heated bed w/ PEI surface, inductive-sensor autolevel, 0.5mm to 0.2mm nozzle diameters.

28

Re: Anyone tried making composites for a Filastruder?

SO CLOSE...I almost had a usable run today, but I couldn't quite get the filament onto the Filawinder's spool without the filament catching on the Filastruder's nozzle guard (too much airflow on the nozzle). I ran out of prepared material after the dozen runs today, but I'll start from the top tomorrow.
Other than that, everything is working: the Filastruder is fully functional, the Filawinder is responsive, and I even ground some more plastic.
Hopefully I can get this post back on topic soon. smile

Filastruder 2607 w/ Filawinder @1.75mm.
Dual-extruder MaxMicron Prusa Mendel: RAMPS 1.4 w/ Repetier Firmware+Full Graphic LCD Controller, stock hotends, 3Dator extruders w/ MK8 gears, insulated enclosure w/ 2 heat lamps, RPi 2B w/ Repetier Server.
0.1-0.2mm layer height, heated bed w/ PEI surface, inductive-sensor autolevel, 0.5mm to 0.2mm nozzle diameters.

29

Re: Anyone tried making composites for a Filastruder?

First full run with the Filastruder: http://www.soliforum.com/post/134181/#p134181
Now I can start thinking about making virgin colored and composite filaments.

Filastruder 2607 w/ Filawinder @1.75mm.
Dual-extruder MaxMicron Prusa Mendel: RAMPS 1.4 w/ Repetier Firmware+Full Graphic LCD Controller, stock hotends, 3Dator extruders w/ MK8 gears, insulated enclosure w/ 2 heat lamps, RPi 2B w/ Repetier Server.
0.1-0.2mm layer height, heated bed w/ PEI surface, inductive-sensor autolevel, 0.5mm to 0.2mm nozzle diameters.

30

Re: Anyone tried making composites for a Filastruder?

Just put some PA-747 in the dehydrator for the night. Tomorrow I'll begin to extrude natural filament. Next step will be colorant, then composite materials.

Filastruder 2607 w/ Filawinder @1.75mm.
Dual-extruder MaxMicron Prusa Mendel: RAMPS 1.4 w/ Repetier Firmware+Full Graphic LCD Controller, stock hotends, 3Dator extruders w/ MK8 gears, insulated enclosure w/ 2 heat lamps, RPi 2B w/ Repetier Server.
0.1-0.2mm layer height, heated bed w/ PEI surface, inductive-sensor autolevel, 0.5mm to 0.2mm nozzle diameters.

31

Re: Anyone tried making composites for a Filastruder?

solvent method would be better for distributing the graphite to create the desired level of conductivity. More graphite may equal a higher conductivity, but it also makes the plastic more characteristic of graphite's other properties (such as being brittle). I'll start with the graphite ratio in the video, mixing it into ABS dissolved into acetone (as originally planned).

32

Re: Anyone tried making composites for a Filastruder?

jfdcvhjgvdfj wrote:

solvent method would be better for distributing the graphite to create the desired level of conductivity. More graphite may equal a higher conductivity, but it also makes the plastic more characteristic of graphite's other properties (such as being brittle). I'll start with the graphite ratio in the video, mixing it into ABS dissolved into acetone (as originally planned).

Graphite only carrys a reduced DC voltage due to its properties. working much like a Rectifier with resister regulator. its why its used in hot surface igniters as double duty also for flame proving by supplying AC voltage to heat igniter and once flame is lit it reads the DC current back feed through the Carbon in flame to ground. also carbon rods in stage spotlights or some welding mostly carry DC current even when AC is applied. and if you do this with say an 110 volt AC you get half the AC wave DC meaning 55 volts. same thing as using an 12 volt battery to operate a low voltage device that normaly uses 24 volt AC. like on a home Furnace Gas valve in long term power outage. just cant run blower so need other source airflow like powered by other means.

just saying if electric continuity is reason for use of Carbon, this must be considered.

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

33

Re: Anyone tried making composites for a Filastruder?

n2ri wrote:

and if you do this with say an 110 volt AC you get half the AC wave DC meaning 55 volts.

This is totally off topic, but a 110v AC source is 110 volts not from peak to peak, but from middle of the sine wave to 0.707 of peak. This image may be useful:

http://soliforum.com/i/?LZ1iFCy.png

The voltage from 0 to peak of one half of the sine wave is 155v, since 110v refers to the RMS value of the wave.

If you feed 110v through a single diode, you will get 155v out of the other end, 60 times a second. The average value will be 49.51 volts.

Just don't want anyone to get hurt or damage anything.

https://wiki.analog.com/university/cour … /chapter-6

34 (edited by JeremyLGSiegfried 2017-06-26 01:11:30)

Re: Anyone tried making composites for a Filastruder?

Hmm, I didn't know that graphite acted like that, not that I was planning to run AC or highly concentrated DC through it. But I do know my AC/DC properties and conversions quite well; I am studying electrical engineering, after all.

Not sure why I was quoted 3 posts back; the chosen snippet as a whole doesn't make much sense on its own as a reply, and there was no response to it either. hmm

(You were the 2nd post back n2ri; I was referring to jfdcvhjgvdfj's post)

Filastruder 2607 w/ Filawinder @1.75mm.
Dual-extruder MaxMicron Prusa Mendel: RAMPS 1.4 w/ Repetier Firmware+Full Graphic LCD Controller, stock hotends, 3Dator extruders w/ MK8 gears, insulated enclosure w/ 2 heat lamps, RPi 2B w/ Repetier Server.
0.1-0.2mm layer height, heated bed w/ PEI surface, inductive-sensor autolevel, 0.5mm to 0.2mm nozzle diameters.

35

Re: Anyone tried making composites for a Filastruder?

this was the part I was replying to "the graphite to create the desired level of conductivity" jfdcvhjgvdfj wrote:and whom I quoted. nobody else

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs