Mechanical bonding
To improve the bed adhesion and reduce warping of the first layer, several measures are available. For example, using a brim or raft that...
Minimum cooling time
In a previous post the importance of controlling layer temperature is explained. In the latest prints poor results due to insufficient...
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The impact of layer height
The layer height is an important design parameter that impacts the printing time, cost, visual appearance and physical properties of a...
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Build plate adhesion
Since PP is known for its stubbornness to attach to other materials than itself, we were expecting some struggles with build plate...
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Controlling layer temperature
When 3D printing thermoplastic materials the controlling of layer temperature is of great importance to create quality prints. By...
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PP testing
Here are the results of the first tests with new recycled PP material from Eco-Oh! We are glad to have found we made the right decision...
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Overhang
Here are the test result of the overhang testing. With a layer height of 4 mm and overhang steps of 2 mm we managed to get good results...
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The recycling problem
The Dutch national media service NOS published an article on the plastic recycling problem. Especially this infographic provides a good...
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Nozzle isolation
By adding simple isolation around the nozzle we managed to increase the nozzle temperature from 60 up to 170 degree. Definitely one of...
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Household waste PE/PP
After many months of developing and testing to master the PE/PP material from household waste, our gathered data indicate that we will...
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Nozzle tips
Since the extruders end had an unusual external thread size for attaching nozzles, we decided to remove the end and replace it with a...
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Extruder Splitting Zones
Earlier we announced a large upgrade of the extruder. One major challenge was to increase the amount of heating zones from 2 to 4....
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Extruder screw geometries
We found this interesting research on the relation of extruder screw geometries, melt viscosity and thermal efficiency. Highlights: •...
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Longer nozzle
Next lesson learned. An elongated nozzle is better for print quality. We are doing research into this area and have found a lot of...
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Open it up!
Taking her apart. We have it on good authority that there are several things that need doing. Prio's are extra temperature sensors and...
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Drying
Many types of plastics intent to absorb moisture from the air. Even the types of plastics that are consider non-hygroscopic attract water...
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Cleaning purge
Since the extruder is an oldy, it was about time to give it a good clean. For maintenance of the barrel we used cleaning purge. Purging...
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Layer Bonding & Printing Height
Since the optimal layer height was found at 6.5 mm with a 5 mm nozzle, the layer bonding and printing height are up for the test....
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Layer Height
The optimal layer height will differ based on the output of a used nozzle. As starting point 80% of the nozzle size is valid in desktop...
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Nozzle Package
With the installment of couplers and nozzles the quality of the output greatly improved. Since recycled plastics from household waste are...
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