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3D printing, you want the fan on max for plastics like PLA. However, unlike 3D printing,
you ALWAYS want the fan on at least a little bit - even for plastics like ABS.

Never run

the unit without the cooling fan enabled.

10. Attach your puller wheel idler arm spring if you haven’t already. Set your pull speed slider

to ~30% of its range depending on material throughput. This will set the puller wheel to
spin at a constant speed that is easy to work with during setup.

11. Use tweezers or needle nose pliers to feed the plastic from the nozzle in between and

through the puller wheels. Be careful! - The nozzle is extremely hot at this point in the
startup sequence; follow safety guidelines to avoid personal injury or harm. Make sure
you have engaged the puller wheel idler wheel spring! See Figure 15 for reference.

12. If spooling is desired, follow the steps below. If not (because your filament isn’t usable),

skip this step. To begin spooling, reduce the filament speed and cooling as much as
possible (halving the auger, fan, and puller is a good starting point). Then follow steps 5
and 6 from the automatic instructions - feed the filament through the spreader, and
attach tightly to the spool. As soon as the filament has made one loop, send the
command “ss000000” to begin spooling, and re-increase the auger, puller, and fan
speeds back to their intended values.

13. Finally, enable diameter control. To do so, slide the diameter slider to the desired

filament size (measured in mm). Note that diameter control may fail irrecoverably if the
filament is too far away from the desired size, if the extrusion flow is too low (or too high),
or if any of the parameters are incorrectly set. It is always best to get the diameter as
close as possible to nominal before enabling diameter control!

As in Automatic operation, now is a good time to check how your diameter sensors are doing. In
particular, your nozzle sensor. Refer to section 4.3.2.

Note:

For best results, close the door to the UI to avoid any cross-wind affecting your filament

output - i.e. if a cross-wind cools the filament at the nozzle too quickly, the puller wheel won’t be
able to draw-down the filament to its desired final diameter.

14. And there we have it! You are now off to the races and creating your very own filament!

29

Summary of Contents for ProtoCycler+

Page 1: ...User Manual Rev 2 0...

Page 2: ...que vs Transparent Plastic 11 3 5 Spooler Set Up 11 3 5 1 Spooler Assembly Instructions 16 3 6 Light Guide Alignment 17 3 6 2 Light Guide Alignment Overview 18 3 6 3 Step 1 Adjusting the sensor height...

Page 3: ...6 0 Congratulations 32 7 0 Appendix 33 2...

Page 4: ...th automatic and manual extrusion modes Most importantly you will be able to operate it safely If the manual doesn t cover what you re looking to understand or raises further questions please visit ww...

Page 5: ...manual extrusion mode Please do not attempt to extrude any unknown materials unless you understand the chemical reaction that occurs when the material is thermally broken down For example PVC release...

Page 6: ...Figure 1 ProtoCycler Front View labeled Figure 2 ProtoCycler Side Views labeled Figure 3 ProtoCycler Inside View labeled Figure 4 From left to right Nozzle Screen Nozzle Breaker Plate Nozzle Cap 5...

Page 7: ...the other by the grinder drawer 2 1 1 Grinder Safety Please thoroughly review the safety precautions before operating the grinder Failure to do so may result in serious injury or irreparable damage t...

Page 8: ...own on the Grinder Lid Plunger and rotate the Grinder Handle clockwise Viewing through the clear area of the Grinder Lid you will see the Grinder Teeth spin inwards 4 During operation if at any time t...

Page 9: ...ruder is very important If the plastic media is too large in any dimension it can jam your extruder Using 100 regrind can also lead to jamming De jamming is a difficult process which may require parti...

Page 10: ...n each unit before shipping but dust accumulation occurs over time Before extruding inspect your extruder hopper for dust and other contaminants If material other than the plastic you wish to process...

Page 11: ...extrusion Extruding with wet plastic will cause the moisture to be vaporized during extrusion causing bubbles in the output and vastly changing the extrusion properties In most cases this will prevent...

Page 12: ...l 3 4 Opaque vs Transparent Plastic The diameter sensors work best with opaque plastics For a naturally transparent plastic such as PLA colorants must be added to make the filament opaque Your order c...

Page 13: ...in the image below are included as part of the Spooler Kit Figure 7 Spooler Kit Parts 1 Spooler Motor Bracket 2 Spooler Support Bracket 3 Spooler Hub with Magnet 4 Spooler Spacer 5 Spooler Pin 6 Spoo...

Page 14: ...The following illustrations outline how to assemble the spooler and correspond to the set of written instructions that follow 13...

Page 15: ...14...

Page 16: ...15...

Page 17: ...pooler Motor Bracket is above the longer arm of the spooler base Tighten the screws so the Spooler Motor Bracket and Spooler Support Bracket are secure 12 Slide the Timing Belt over the clutch handle...

Page 18: ...time The following image details the two types of light guides Figure 9 Light Guide V1 0 left Light Guide V1 1 right 3 6 1 What you need to check Light Guide Alignment You ll need two sizes of dowels...

Page 19: ...esent the raw data read by the light sensor photoresistor array for the diameter of filament at the nozzle left brown line and the final diameter of the filament at the puller wheel right dark green l...

Page 20: ...t step is to ensure the sensors themselves are aligned Each sensor has a thumbscrew that if loosened permits the sensor to move up and down as shown below in Figure 11 The sensors are adjusted from th...

Page 21: ...tained The process is the same for both the Nozzle and Puller sensors 2 Both light guide versions 1 0 and 1 1 allow the LED to be angled up or down to ensure the light guide is evenly lit Their operat...

Page 22: ...dowel in between the puller wheels as shown in Figure 13 Similarly check the nozzle sensor using your 2 56mm dowel of choice Do your best to align the dowel with the nozzle output as seen in Figure 13...

Page 23: ...ED mount back towards the user increases the diameter reading Conversely the diameter reading will decrease as you move the slider carriage closer to the sensor This is how you achieve nominal reading...

Page 24: ...DeTec This means there is plastic already in your melt section Depending on how much time has passed since the ProtoCycler was calibrated the plastic in the melt section may have absorbed moisture fro...

Page 25: ...d here for 100 seconds to thermalize the melt section This allows the hot melt section of your device to reach a uniform temperature throughout before initiating the rest of the extrusion start up seq...

Page 26: ...ler wheel during this time 5 Once the output filament has stabilized you will hear another chime and a prompt on the UI screen saying Spooler Ready The fan speed will reduce to allow the filament to s...

Page 27: ...n t be able to draw down the filament to its desired final diameter 9 And there we have it You are now off to the races and creating your very own filament Note If connected to a computer now is a goo...

Page 28: ...raw data ideal reading example Figure 18 Nozzle Diameter Sensor raw data misaligned reading Notice the rid vertical line indicating the shadow of the filament has completely fallen outside the bounds...

Page 29: ...instance PLA usually 3D prints around 190 220 C and the datasheet suggests 200 C for processing However ProtoCycler s patented MixFlow system requires a temperature of only 180 C for PLA so we would w...

Page 30: ...good starting point Then follow steps 5 and 6 from the automatic instructions feed the filament through the spreader and attach tightly to the spool As soon as the filament has made one loop send the...

Page 31: ...document 5 1 1 Short Purge 1 Power on your ProtoCycler and connect to the PCC software Pour the new plastic you wish to extrude into your Extruder Hopper While connected to the PCC begin manual extrus...

Page 32: ...the temperature of the Lower Temperature material s nozzle removal temperature see Table 2 for reference increase temperature back up to the Purge Temperature 4 Purge for 10 minutes 5 Repeat steps 2 5...

Page 33: ...ere is an initial learning curve and longer path to mastery But following this manual should set you up on the best path forward If there is anything we can help with please contact our technical supp...

Page 34: ...25C Temperatur e can vary depending on material type and grade Special exception to ABS where the removal temperature is the same as the preheat temperature Low temperature material extrusion tempera...

Page 35: ...e can vary depending on material type and grade Special exception to ABS where the removal temperature is the same as the High temperature material extrusion temperature minus 10C Temperatur e can va...

Page 36: ...gging your extruder If there is no overlap in material processing temperature s you may require an intermediary purge material 3 Color 1 Color 2 Short Purge On Material Dependent Material Dependent Ma...

Page 37: ...Plastic Short Purge On Material Dependent Material Dependent Material Dependent Run extruder in manual mode until purged Plastic may be wet if you notice necking or bubbles or pockets in extrusion Yo...

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