The CCTREE Carbon Fibre PLA filament is a 1.75mm PLA filament infused with Carbon Fibre, resulting in a filament that can produce prints that are much stronger than standard PLA. This filament is thus ideal for high-wear and load-bearing prints.

This higher durability does come at two significant tradeoffs. Firstly CCTREE Carbon Fibre filament costs approximately double what CCTREE standard PLA filament costs. Secondly and probably the largest problem with this filament is that it experiences significant bowing as it cools compared to standard PLA filament.

This bowing can result in prints separating from the print bed, which occurred more than once during my testing, and below is a picture of the consequences of one of these bed adhesion failures.

I found that the Carbon Fibre filament worked best when printing smaller items as the bowing occurred much less on a small surface area.

Here is a picture of some items I printed using the Carbon Fibre filament to upgrade my Wanhao Duplicator i3 Mini.

On the left in the image is a filament guide that prevents the filament from grazing against the printer body and ensures smooth filament movement. On the right are bed stabilizers that prevent unwanted bed movements that result from slight shifts in the bed leveling springs.

I also printed a tool caddy using the Carbon Fibre filament, and this was the largest item I printed successfully using the filament. Here are some photos of the tool caddy.

As can be seen in the Wanhao logo on the tool caddy a good level of detail is possible using the CTREE Carbon Fibre filament. Also note that all prints required minimal cleanup, with little to no stringing occurring.

Here are a few pictures of the upgrades installed.

The CCTREE Carbon Fibre PLA filament is a very useful filament for printing functional parts that require a level of robustness not offered by PLA, but it does require more care and tweaking to print successfully. It is an excellent filament, just not one for beginners.

On a side note, I recently installed a silicon sock on my printer’s hot end. This is a simple and inexpensive upgrade that offer numerous benefits such as helping to keep the hot end temperature constant and keeping the hot end clean. It also a safety measure and prevents burns from accidentally touching the hot end. It is definitely a worthwhile upgrade considering the minimal investment required.