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What's new in the Pro model?

1. Improved Mechanical Properties

The Ender 3 Pro has been redesigned with a more sturdy, 40×40 aluminum extrusion for the Y-axis base. This should improve the overall stability of the printing surface.

Also, better bearing wheels deliver more stiffness, reduce friction, give better dimensional stability – and also help to reduce the overall noise level.

2. Improved Extruder

According to their press release, Creality also exchanged their extruder to an “MK-10” version. The company boasts it should “greatly reduce the risk of clogging and uneven extrusion”.

3. New Magnetic Printing Surface

Last, but not least, the Ender 3 Pro now comes equipped with a “C-MAG” magnetic printing bed. The sheet is removable and flexible, so the prints can be plucked off the build plate more easily. According to Creality, their textured surface adheres to all types of filament better than traditional methods such as tape, glue, or hairspray.

4. Improved Power Supply

Power supply was replaced with better Meanwell power supply

5. Vent changes

The Vent on the controller move to the bottom of the enclosure to prevent dust and other particles from falling in

Creality3D Ender 3 Pro DIY 3D Printer Kit 220x220x250mm Printing Size with Power Resume Function/MK10 Extruder.

Video available on this model at https://youtu.be/a8Z-9ncYsps

Ender 3 quick start guide available at https://s3-us-west-2.amazonaws.com/3dprintersbay/ender-3-deliverables/Ender+3+quick+start+guide.pdf



Machine advantages

1.Split type design: the electronic control host and the mechanical structure are separated, open your mind, help create a variety of print-outs at will.
2. Shipment of the kit: Solving the problem of large-kit transportation, installation takes only 5 minutes.
3. Industrial grade circuit board: The technology is quite mature and stable, it can work continuously for 200 hours without pressure.
4. Linear pulley system: Patented technology, V-profile+precision pulley, runs more smoothly, more wear-resistant. Effectively reduces noise.
5.MK10 Extrusion Mechanism:A brand-new patented infrastructure that effectively reduces the risk of plugging and poor spillage and can print almost all filaments on the market.



Specifications

The DaVinci Lab PETG 3D printer filament (Polyethylene Terephthalate) is one of the most common used polymers today. It is also used in the manufacture of food packaging, water bottles and many other common plastic items. PETG filament has proven its worth as a durable material that is easy to use. Figuratively speaking, it combines the most useful characteristics of ABS filament with the ease of printing that PLA filament affords.

PETG features:

• Higher strength
• Lower shrinkage
• Combines good strength with ductility, making it a good, tough material for mechanical parts
• Good chemical resistance
• Contains UV absorber
• Good hydrophobicity (does not absorb water easily)

The DaVinci Lab PETG filament has the following characteristics:

• 100% virgin material without cheap plastic fillers
• Print Temperature: 210 – 250°C, dependent on printer model
• Heat Bed temperature: 90 – 110°C
• 1Kg net weight
• Accurate diameter of 1.75mm with a tolerance of ± 0.05mm
• Spool Size: diameter 197mm, inner hub 60mm & height 60mm
• Vacuumed Sealed With Desiccant
• ROHS Certification from SGS testing

Thermoplastic polyurethane (TPU) belongs to a class of polyurethane plastics having many important properties such as elasticity, transparency, and resistance to grease, oil, and abrasion. It is unique due to its extremely flexible nature. Technically speaking, TPUs are made up of thermoplastic elastomers.

TPU has different advantages such as resistance to abrasion, ability to perform at low temperature, elasticity, and mechanical properties along with rubber-like elasticity.

TPU printing filament is flexible in nature. It can bend easily without any effect on the design, strength and durability. A mild soap can be used for its cleaning.

Flexible TPU filaments can be stored in a cool airtight container. Container may also have a desiccant pack, so that filament remains bone dry. This container can also help in preventing the entry of dirt and dust particles, so that the filament could be used anytime for print. Although some type of TPUs are water-resistant, prolonged contact with water could result in degradation of the product.

For optimal results print flexible TPU filaments on direct extruders; however, it is possible to print on Bowden extruders as well. Flexible TPU filaments have the ability to adhere well to most surfaces such as glass, aluminum, Kapton tape, and blue painters tape. It is important to always print in a well ventilated room regardless of the filament type.

The DaVinci Lab flexible (TPU) filament has the following characteristics:

• Consistent color
• 0.8Kg net weight
• Print Temperature: 200 – 230°C
• Heat Bed temperature: 50 – 80°C
• Print Speed: 30 – 50mm/s
• Accurate diameter of 1.75mm +-0.05mm
• Vacuumed Sealed With Desiccant

• Dual H-Bridges - run four solenoids, two DC motors, or one uni-polar or bi-polar stepper motor
• Output Current: 600mA per channel (1.2A Max)
• No of Channels: 4
• Input: 5V Logic
• Supply Voltage Range: 4.5V to 36V
• No. of Pins: 16
• Operating Temperature Range: 0°C to +70°C

Downloads

L293DNE Data Sheet

Tutorials

Controlling a Stepper Motor with the L293D

Raspberry Pi: Controlling a DC Motor

Arduino: Stepper Motors

Arduino: DC Motor Reversing