Hints and Tips

Improve the timing of extrusion

It is necessary that you get the timing of your extrusion right, as it is very important for the first layer of adhesion. Timing is incorrect if the extruder starts printing but filament appears with a delay. Get your extruder ready for printing One of the most common causes that delays the extrusion is that the extruder is not ready for printing. The reason is that as the extruder is being heated up at a high temperature, the filament will drop through, therefore the nozzle is empty on the beginning of the print. How to identify – You will recognize that the extruder is not ready for printing if the printer makes the first few lines without extrusion and then proceeds to extrude without problem. Solution- Print Studio automatically adds a Skirt/Brit around the object to resolve this issue. However, if that is not sufficient you can increase the number of loops in the advanced settings – Advanced Settings > Skirt/Brim > Num. Skirt/Brim Loops
The leveling of your printer might be too tight, which would result in insufficient space between the nozzle and the surface. How To Identify – In case of incorrect leveling, the printer will start printing on the second or third layer on Z-axis Solution- Level your printer If your Extruder is clogged If none of the solutions above resolve the issue it is most likely that your extruder is partially clogged. Please follow tips on how to resolve this issue in the section below.

Improve your prints with supports

Supports are used to provide point of print, where there is not sufficient surface from the previous layer. These will occur during overhang and bridging. Overhang is when the model is graduated in a certain angle away from the previous base. Bridging is when printer has to lay the layer in a 90 degree angle between two points and there is no material underneath. Support can be considered from 45’’ above, however in most cases 55’’ will be enough. Automatic setting of Print Studio is 55’’, however if you do notice unwanted drooping or curling, you can lower the degree in advanced settings to provide more support to your model. Please go to Advanced Settings> Support > Support Angle Tolerance

Get your model to stick to the build tape

It is crucial that adhesion of the first layer is as strong as possible so that the print does not move away from the build platform, providing foundation for the rest of your model. There are several causes to this problem and in general it may be hard to tell them apart. Please try out the solutions below which should help you to significantly improve this problem. Level your printer You can usually recognize that the printer is not leveled if the first lines of the filament are rounded rather than flat and do not stick together. Please level your printer.
It is important that the first layer is as accurate as possible. The two most important advanced settings of first layer are: First Layer Speed – By lowering the speed of extrusion of the first layer you will allow the filament to be properly extracted and to have slightly more time to settle. For settings use numbers from 0.1 to 1.0 where the number behind 0 represents percentage – 0.5=50%. Go to Advanced Settings > Speed> Layer 1 Speed Multiplier First Layer Height – The higher resolution of print you choose, the harder it is for the first layer to stick. Especially when there are small debrides on the build tape or when there are nuances in your printer leveling. Therefore it is worth increasing the first layer height as a higher layer will be more tolerant towards those surface differences and sticks better. Go to Advanced Settings> Layer> Layer 1 Height> You can tweak the height from 0,25 to 0.3
For cleaning Build Tape please follow these recommendations Add Raft In some instances it is the case that there is not enough material in contact with the surface, which can result in the model not sticking to the build tape. This can be resolved by adding raft. Raft acts as few easy-to-remove layers of flat plastic that are put around the base of first layer of the object. Thanks to the raft, the object will have greater area on the first layer, allowing the object better overall adhesion. To add raft tick Enable Raft next to your profile selection

Stop Under-Extrusion

Try to load the filament and check if the filament from the extruder is coming in straight or curled lines If the lines are curled your extruder is most likely partially clogged. In this instance, please follow these instructions If the lines are straight you might try increasing extrusion multiplier, which will extrude thicker lines. Go to Advanced settings > Extrusion > Extrusion width multiplier – you can adjust the settings from 1.0 to 2.5 where 0.01 represents 1% - Therefore if you set the multiplier to 1.50 your thickness will be 50% higher. If the problem remains, and your outer layers have gaps, please follow this section.

Prevent Gaps in Top Layers

As the model is sliced, Print Studio will prepare the inside of the model as hollow with a certain percentage of infill, which is between 15-25% (depending on the chosen quality) and then build a solid shell around it. In rare situations it can happen that some of the printed lines will “sink” into the air bubbles that they are being printed on. In this case try to increase the number of outside layers. Go to Advanced settings > Layer > Nu. Top Shells and try to increase it by 1 or 2

No more Stringing, Webbing or Oozing

This will occur because very thin long strings of filament are attached to your model. This problem is a result of leftover plastic coming out of the extruder when the extruder is moving to its new position. This can be caused by a few issues, however the most common way to solve this issue is by setting the retraction. Retraction makes the extruder pull up the filament to prevent oozing, when needed it will push it back to the nozzle.
The most important setting for retraction is “Extruder Retract Length” which sets the length of filament being pulled back to the extruder. Standard setting is 0.1cm, however if you are experiencing oozing you can try to increase it to 0.2-0.3cm (recommended can be more) which should resolve your issue. Go to Advanced settings > Extruder > Extruder Retract Length
Another step that could be helpful is retraction speed. Retraction speed sets how fast the filament will be retracted and pushed back. The slower the retraction is, the greater chance for oozing is present. However be careful in setting the speed too fast, otherwise this will have a reversed effect, resulting in over-extrusion. Standard setting is 20mm/s and it is not recommended to exceed 40mm/s. Advanced settings > Extruder > Extruder Retract Speed.
If changing retraction settings did not resolve your issue, you can try to adjust your temperature settings. The reason is that if your temperature settings are too high, the plastic inside will leak out. This is not a common issue for Dremel printers, however it might be the case that your printer is in a hot environment and therefore lowering the temperature by few degrees might resolve the issue. Go to Advanced settings > Extruder > Extruder Temperature

Make the layers stick together

The model is created by the printer putting a layer of plastic on another layer of plastic. That means that all layers have to stick together correctly to create the desired model. This is most likely caused by low temperature of extrusion. This is not a regular issue for Dremel printers, however it might be caused by insufficient temperature in the printer’s environment. You can slightly increase temperature in Advanced settings > Extruder > Extruder Temperature

Trouble shoot gaps between infill and outline

This can be caused by the extruder traveling too fast during print. The reason is that outlines and infill are printed in different sequences and usually infill is printed faster than outlines. To resolve the issue go to Advanced settings > Speed and try to decrease both infill and perimeter speeds by 10mm/s

What to do with warping

Warping is a problem when part of the model bends upwards from the build tape, as the first layer does not stick properly. To trouble shoot this, please, follow Instructions on how to Get Your Model Stick To The Build Tape

Unclog Extruder

- Preheat the printer for 20-30mins
- With use of unclogging tool, try to push all the filament out
- If this did not help, please follow steps in this video on how to manually unclog extruder
- If the issue still remains then the problem is most likely mechanical and you are advised to contact our customer support.

Leveling Tips

3D20 – use provided leveling sheet. You can recognize the right distance when the leveling sheet goes smoothly through, but still slightly lifts the extruder as it is pushed through. If you don’t have original Dremel Leveling Sheet, you can also use a business card or postcard.
3D40 if your leveling is taking too long and the printer asks you every time to adjust the knobs turn them an extra quarter in the required direction after the printer beeps.

Cleaning the Build Tape

To clean the build tape correctly use cleaning alcohol. Please note that you cannot use cleaning products like liquid fairy or soap, as that leaves behind thin film on the surface of the build tape meaning that build tape loses adhesion.