3D Printing Projects: Expanding Prints with Bambu H2D

 

Challenge: Use the Bambu H2Ds ability to combine PLA into a single print, with a 'Christmas Theme'.

Background: In August 2025 Auroa Primary School purchased a new Bambu H2D Printer.   One of the aspects of the machine is that is has four nozzles and has the opportunity to combine colour within the confines of a single print - as shown on the prints when we compared dragons previously on this blog.

We have mentioned that we have started identifying potential examples for our 2025 Market Day which can be used as additional material for sale at the event (as most of the preorders have already been sold which would mean if nothing was added nothing would be available on the evening for sale).   

Level of Difficulty: Medium, something new for the students is the use of multi colours and the Bambu Studio software used to create it.   This design is an original from Tinkercad, the student has then imported the design into Bambu studio and used this program to identify the sections for alternative colours of PLA.

Size: The print is essentially 100mm wide and 100 high and is obviously a bauble shape.   As a decoration intended to hang from a tree these are the expected dimensions for this, conceivably it could have been smaller if the entire class was to complete the project however in this case the intention was for it to be a test of the colour options with the Bambu H2D.

Cost: The print used just slightly under a 100g of filament, which would equate to using a roll to produce ten of these items.  As the regular PLA is currently tracking at $30.00 a roll this means the print would cost $3.00 at a break even point.

Timeframe: Four hours on the Bambu H2D.  We would not attempt this on the Snapmaker as the colour combination would mean that the design would need to be stopped and started to complete the process - as it was with the machine it was completed automatically in a single print.

What we would do differently/Next steps for the students:   The Bambu H2D produces a purge when the colours are combined.   That is the waste plastic is produced in a column - as shown left.   While this is much more compact and tidy than a regular printer it is still significant.  If the printer had been printing in a single colour it would have been minimal.

The student had wanted the belt and the buttons to be white however when they were allocating the patterns on the design they did not select the correct colour combination from the printer and as a result they were printed black.

We have previously published a significant volume of material with a Christmas theme - we will update the slideshow for 2025 and publish it again soon.  In the meantime you can click on the link here to locate it.