3D printer parts by GreatThreeD

This is a piece I made to stabilize my 3D printer manufactured with extruded aluminum 2020 as the Tarantula Tevo or Flsun i3.

You must use an M4 x 8 mm screw with a washer and a T-nut to secure the frame to the 2020 frame and two wood screws of appropriate length to secure the bracket to a plywood or something else but not the kitchen table. ..

Happy printing.

Printer:

mini fabrikator V1

Rafts:

Doesn’t Matter

Supports:

Doesn’t Matter

Resolution:

0.2mm

Infill:

65%

3D Print Remote Support Engineer

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Thermwood tests 3D printed carbon fibre-filled PPS panels without coatings

Thermwood has taken a major step toward its goal of 3D printing autoclave capable tooling from high temperature carbon fibre filled thermoplastic materials.

The manufacturing company 3D printed 50% carbon fibre-filled PPS panels on its LSAM additive manufacturing machine, maintaining the part’s vacuum to an industry-standard level, without coatings. Testing of the part was conducted by the Fleet Readiness Center, located at MCAS Cherry Point, NC, under a previously announced Cooperative Research and Development Agreement (CRADA) partnership. The results met FRC-East acceptance criterion that the bag must not lose than more than 2 in Hg over five minutes.

As an added benefit, Thermwood believes it will soon be capable of producing moulds and tooling that function properly under vacuum in a heated, pressurized autoclave, also without the use of any type of coating to seal the printed tools.

Previously, other unaffiliated companies have tested actual tools printed by Thermwood from 20% Carbon Fibre-filled ABS and have also found that those tools held vacuum to an acceptable level without the use of any sealer or coating; however, the ABS material is not suitable for high temperature applications.

Yet, several parts have been made from those tools under vacuum at room temperature and at slightly elevated temperatures. Thermwood has also already printed a 50% Carbon Fibre-filled three dimensional PPS mould which has not yet been tested. Thermwood’s goal is to produce moulds that will be used in a production autoclave, moulding finished parts suitable for actual end use.

Thermwood’s additive printing process differs fundamentally from conventional Fused Deposition Modelling (FDM) printing. Most FDM processes print parts by melting and extruding a relatively small bead of thermoplastic material onto a heated build plating that is contained within a heated chamber. The heated chamber keeps the extruded material from cooling too much before the next layer is added.

Thermwood machines print a large bead at such a high rate that a heated environment is not needed. It is basically an exercise in controlled cooling. Print speed is adjusted so that each layer cools to the proper temperature just as the next layer starts to print resulting in a continuous printing process that produces high quality parts. Thermwood believes this fundamentally different approach produces superior parts.

One other feature that Thermwood engineers believe helps produce solid, void free parts, is a patent pending compression roller that follows directly behind the print nozzle, flattening the bead while fusing it tightly to the previous layer.