Getting Started


Get to know your Strooder

On the front of the Strooder you will see two nozzles.

The white nozzle, on the left, is for cooling. The other nozzle, on the right, is the extrusion nozzle. This is where the filament will come out.

Above the nozzles is the touch screen. You will use this to tell Strooder what to do.

Behind Strooder, underneath the white hopper, you will find (from left to right) a power switch, a mini USB port and a power cable connector.

The power supply should come in two parts. The kettle lead with the plug for your country and a universal power supply.

Get Started with Strooder

First connect the kettle lead to your power supply and plug it in to a wall socket. An LED should light up on the power supply.

Place Strooder so that its filament nozzle overhangs a table. Make sure Strooder won’t fall. Check that Strooders power switch is in the off position. Connect the Power supply connector to the back of Strooder. It will only fit in one way around. Now tighten the screw to secure the connector to Strooder.

Turn Strooders power switch to the on position. You should now see Strooder’s screen light up and display the main menu.

Now top up Strooders hopper with your chosen material.

In the top left corner of the screen you will see a material name for example “PLA”. If you are happy with PLA skip to the next step. If you want a different material, for example ABS. Touch “PLA”. Now touch “ABS”.

To select the nozzle size, touch the button on the left hand side of the screen named “settings”. On the left hand side, you should see a number, for example “1.75”. Touch this number. Now touch the nozzle size you need, for example “3.00”. (Note Strooder will need a different nozzle for 1.75mm filament and 3.00mm filament, see “Changing the nozzle?”).

Great, now you are all set up! Touch the big green “Start” button. The button should change to a big red “Stop” button. Be ready to press this if something goes wrong. If the problem is still occurring turn Strooder off at its power switch and then unplug it from the wall.

Once you have pressed “Start the text above the “Start” button should have changed to “heating”. Now look at the bottom left hand side of the screen. You should notice the temperature switching from “Targ Temp” (the Target temperature it is trying to reach) and “Curr Temp” (the current temperature Strooder is at now). The Strooder will wait a short while once the “Curr Temp” reaches the “Targ Temp” in order for the heat to spread along the whole barrel.

Once fully heated Strooder will change from “Heating” to “Strooding”. You should hear the motor start up and filament should start coming out of the nozzle very soon. The first few meters of filament might not be very good but Strooder will soon get in to the swing of things and start making you some great filament.

Changing the nozzle?

To change the nozzle Strooder will need to be hot. Touch “settings” on the left hand side of the screen. Touch the “right arrow” this will take you to “more settings”. Here you can click “Change Nozzle”. Touch “Start”. In the bottom left hand side of the screen you should see the “Targ Temp and the “Curr Temp”. When Strooder reaches the “Targ Temp” (this will be the same as the current material you have chosen) the Screen will show a message “Now ready to change the nozzle. Press to continue.”. You can now use a 20mm spanner to unscrew the nozzle by turning it anticlockwise. Please be careful Strooder and the nozzle are now hot and can burn you.

If there is any residual plastic in the nozzle it is best to use some needle nose plyers to remove the plastic. You should also remove the plastic from the barrel until you can clearly see the auger. Do not put anything in to the barrel if the auger is turning, this will crush or cut. Now still using the 20mm spanner put the new nozzle on. The nozzle is made out of brass and will heat up very quickly. Use the spanner to avoid burning. Make sure you tighten the nozzle well to avoid plastic leaking.

Now the nozzle is on press the touch screen. You should now be on the settings page. Touch the “left arrow” to return to the main menu.

Strooder Jammed?

First remove the nozzle.

Touch “settings” on the left hand side of the screen. Touch the “right arrow” this will take you to “more settings”. Here you can click “Change Nozzle”. Touch “Start”. In the bottom left hand side of the screen you should see the “Targ Temp and the “Curr Temp”. When Strooder reaches the “Targ Temp” (this will be the same as the current material you have chosen) the Screen will show a message “Now ready to change the nozzle. Press to continue.”. You can now use a 20mm spanner to unscrew the nozzle by turning it anticlockwise. Please be careful Strooder and the nozzle are now hot and can burn you.

If there is any residual plastic in the nozzle it is best to use some needle nose plyers to remove the plastic. You should also remove the plastic from the barrel until you can clearly see the auger. Do not put anything in to the barrel if the auger is turning, this will crush or cut. Now the nozzle is off press the touch screen. You should now be on the settings page. Note down the temperature and speed settings so you don’t forget them. Change the speed to 100%. Go back to the main page by pressing the “Left arrow” in bottom left hand side of the screen and now touch “Start”. Go back to “settings” by pressing the button on the left hand side of the screen. Now increment the temperature little by little. The plastic should start to come out of Strooder. If this fails. Wait for Strooder to cool down completely by going back to the main menu “left arrow” and then press “Stop”, this may take a fair while. Once cooled completely touch “Start”.

Pellet Empty Error?

Strooder will sometimes display a pellet warning message. To get rid of this simply add some more pellets. If you do not add more pellets then Strooder will automatically stop after a short while and then display a pellet empty error screen. If you touch the error screen Strooder will restart and take you to the main menu.

If the error screen is coming on when you have pellets inside Strooder this may be because you are using transparent pellets that Strooder can’t see. You will need to disable the pellet sensor. To do this stop Strooding. Then touch “settings”, then touch “right arrow” to take you to “more settings”. Now touch “Pellet Sensor”. The Strooder will ask if you are sure you want to disable the “Pellet Sensor”. Note if the “Pellet Sensor” is disabled then Strooder won’t turn off after it has run out of pellets. It is best Strooder is operated under supervision at all times, extra attention should be given when this sensor is disabled. One you touch “turn off” you will be taken to the “settings” page. Touch the “Left Arrow” to return to the main menu. You should see the words “Pellet Sensor” appear in red at the bottom of the Screen in the middle. When you press “Start” Strooder will not check to see if there are any pellets in the hopper.

Experimenting with Strooder?

Here are some guide lines to help you experiment.

First, choose a blank material so you can save your new settings. In the top left corner of the screen you will see a material name for example “PLA”. If you want a different material, for example MAT1. Touch “PLA”. Now touch “MAT1”.

To select the nozzle size, touch the button on the left hand side of the screen named “settings”. On the left hand side, you should see a number, for example “1.75”. Touch this number. Now touch the nozzle size you need, for example “3.00”. (Note Strooder will need a different nozzle for 1.75mm filament and 3.00mm filament, see “Changing the nozzle?”).

Great you can now start experimenting. Go to the “settings” page and change the temperature and the speed. The changes you make will happen in real time. This means you don’t have to return to the main menu for your changes to take effect. If you want to change the Temperature and the Speed by a lot, then press and hold. The numbers will change in increments of 5, then 10 then 15 depending on how long you press the up or down arrow for. If you only want it to change by 1 then just press and release the up or down arrow.

We have found that the following variables affect the size of the filament. Change each parameter little by little. Wait roughly 3 minutes for each change to take full effect. (it takes time for the heat to stabilise across the whole barrel).

Height = more height = thinner filament (please do not move Strooder when running, we have a clean sheet of wood for the filament to coil on top of. We raise or lower the sheet in order to test this)

Temp = more temp = thinner filament (Use a datasheet to roughly get the temperature right. If the Strooder is too hot it may burn which can create fumes that are toxic (check datasheet) and can also jam your Strooder. If the Strooder is too cold, then the material will still be solid and can jam Strooder.)

Speed = more speed = thinner filament (This one may seem counterintuitive, the reason its gets thinner is because the filament has less time to hit the floor and therefore does not have as much time to cool down. This means the filament is hotter when it hits the floor and so will be thinner. Adjust the temperature first then change speed.)

 

Ambient temp = more ambient temp = thinner filament (This typically does not have a significant effect. For those of you trying to be more precise this should be measured.)

 

Hotter filament, touching the floor = tighter coil/ loop. (The Strooder makes plastic coils on the floor. In order to increase the diameter of the coil the filament should be cooler when it reaches the floor. This may be preferred because it will give more time for the filament to cool and will reduce the chances of the new filament bonding with the old. You could use additional cooling to achieve the same affect.)

Want to display temperature in Fahrenheit?

Strooder show temperature in centigrade. To display the temperature in Fahrenheit. Then touch “settings”, then touch “right arrow” to take you to “more settings”. Now touch “C”. The button will now change to an “F”. Touch the “Left Arrow” to take you to “Settings” and touch the “Left Arrow again to take you to the main page. The temperature should now be in Fahrenheit.