The 3D printed FibreTuff biomaterials in a filament have a bone like surface texture, as well as appearance similar to cadaver models - skulls, femurs, calcaneus, talus, metatarsal, skull cap, mandible, sacrum.
The FibreTuff I has similar properties to Nylon 11 or 12. The specific gravity of FibreTuff I is 1.05 g/cc. This filament for 3D Printing is user friendly and doesn't require extensive drying like other highly engineered resins. The FibreTuff is anisotropic, prints are stronger in the Z direction versus X and Y.
FibreTuff has now produced it’s biocompatible compound with ISO 13485 certification. The company will be able to produce filaments for 3D Printing to use in surgical guides and implants. FibreTuff has global recognition to produce the most advanced 3D Printed anatomical bone like models for clinical and pre surgical assessment.
Z direction printing is an absolute for bone like construction with cortical bone having 100% infill and cancellous bone being less with different infill patterns available through printer manufacturer.
It has been found that 3D printed FibreTuff medical grade filament can be annealed to increase physical performance in some cases beyond 10%. FibreTuff can withstand temperatures of 130C at 30 min to help establish better performance.
The 3D printed FibreTuff filament produced anatomical bone like models having qualities like bone that absorb fluids to increase flexibility and impact. These 3D printed bones made with FibreTuff were soaked in water for two hrs with less than .10% uptake.
FibreTuff can be 3D Printed with various break away materials or support structure polymers to help with the vertical printing in Z direction. Standard breakaway for the Ultimaker 3D Printers can be used.
Recommended processing conditions.
The nozzle size should be .4 or .5mm with temps at 235 - 240C.
The printer bed should be heated at 80 -100C.
Cooling Fan on for first few layers than turned off
Recommended layer height .1 - .2mm
Printer oven is desired - temps 80C.
Printing speeds 45 -50 mm/sec
Density or infill is at 90 - 93% infill
Recommend Adhesive or breakaway - PVA
Please note: A new spool of FibreTuff Medical Grade filament is packaged in a vacuum sealed package with desiccant and shouldn't require drying. If you leave spool exposed to elements over a period of time estimated at 3-4 days, moisture pickup is possible and may effect adhesion for layering. An indication of too much moisture is over extrusion or nodules present. It is recommended to desiccant dry spool for 10 hrs before printing.
FibreTuff was selected by SME in 2020 for participation as one of eight in the emerging and enabling medical technologies for the RAPID+TCT conference.
Ultimaker and FibreTuff participated in a cranio maxillofacial event held in Tampa Florida in November 2019 . More than 50 surgeons worked with 8 models produced with FibreTuff medical grade filament to replace cadaver bone.
FibreTuff medical grade filaments can be 3D printed with no offensive odors at recommended temperatures. Matter of fact there is no maleic in some filament that can cause skin irritation.
FibreTuff II has passed Cytotoxicity and Skin irritation tests and USP Class VI testing for temporary implants performed by NAMSA a regulatory approved testing
company for medical devices and implants.
Airwold 3D printer applying FibreTuff medical grade filament to the heated bed to make an anatomical bone for use at University for student observation. The students then drilled and inserted cancellous screws into the bone model.
FibreTuff II medical grade filament requires a heated bed 80 -110 c . You can purchase FibreTuff II in two sizes, a 1.75 of 3.0mm. For the FibreTuff II to adhere to the heated bed a glue or adhesive sheet is required. The glue stick recommended is Cube Glue. GeckoTek is a supplier of adhesive sheet for heated beds to 3D Print. The nozzle size recommended for FibreTuff II are .5 with a processing temperature from 220 to 225C. If you use a .4 nozzle, higher heats may be necessary at 230C. A 3D Printer oven is preferred at temperatures of 80C for maximum efficiency.
3D printed FibreTuff compounds for capacitive touch applications.See 3D Printer nScrypt Utilizes FibreTuff's PEEK Alternative PAPC 3D Printing Filaments
FibreTuff medical grade filament requires a heated build plate on a 3D Printer. Utilizing EZ-STIK GeckoTek build plate with 225C nozzle temperature and heated bed at 95C with PAPC II is preferred. https://www.geckotek.co/collections/build-plates/products/ez-stik-hot-build-plate
To adhere the FibreTuff medical grade filament to a 3D Printer heated bed - PVA water soluble breakaway, a glue stick or adhesive sheet is required. Magigoo is a preferred adhesive https://magigoo.comCube Glue is a good choice for increasing bed adhesion with FibreTuff medical grade filament.
All FibreTuff biomaterials for FDM 3D Printed parts require a heated bed. The heated bed temperatures recommended for the FibreTuff I can range from 80 C to 110 C.
Ultimaker S5 Printer had utilized nylon parameters with FibreTuff medical grade filament for 3D Printing the part shown in the video at RAPID 2019 . The FibreTuff showed remarkable adhesion that utilized cellulose fiber in the biomaterial composition.
nScrypt has 3D Printed a skull cap with bone like qualities using FibreTuff medical grade filament.
The Air Wolf Axiom 3D printed FibreTuff medical grade filament at processing speed 45mm/sec to produce a calcaneus bone. The nozzle dia. .5mm at 235c temperature. The heated bed set at 100c. No oven chamber required.