Rolling Paper Typewriter

Unlike other automatic writing machines that require the paper to be fixed in place, the rolling paper-style writing machine draws its inspiration from typewriters. The key advantage of this rolling paper design lies in its compact size and excellent portability. Measuring only 430mm in length, 70mm in width, and 127mm in height, it is ideal for use in tight spaces or for easy transport.

CMS3 Three-Axis Mainboard, Quantity: 1

Aluminum Profile, European Standard 2020N1, V-Slot Sandblasted Black (300mm length, M5 tapped holes at both ends), Quantity: 1

Linear Rail, 270mm long MNG9 rail with MGN9H carriage and 55mm long MGN9 rail with MGN9C carriage, Quantity: 1

Optical Shaft, Diameter: 8mm, Length: 295mm and 310mm, one of each, Quantity: 1

Stepper Motor, 38mm height, XH2.54 wiring, Quantity: 3

Pneumatic Fitting, PC4-M6, Quantity: 2

PTFE Tube, 24mm (1.75mm) White, Quantity: 1

Timing Pulley, 20 teeth, 5mm inner bore, 6mm belt width, Quantity: 1

Idler Pulley, 20 teeth, 3mm inner bore, 6mm belt width, toothed, Quantity: 1

Timing Belt, GT2-6mm rubber timing belt, 1 meter per piece, Quantity: 1

ABS Motor Bracket, Quantity: 1

Aluminum Alloy Motor Bracket, Quantity: 1

Coupling, Outer diameter 19mm, length 25mm, inner bore 58mm, Quantity: 1

Single-Head Copper Standoff, M3×30+4, Quantity: 4

Hex Socket Countersunk Screws, M3×16, Quantity: 12

Hex Socket Countersunk Screws, M5×10, Quantity: 5

Hex Socket Button Head Screws, M3×6, Quantity: 10; M3×8, Quantity: 26; M5×10, Quantity: 2

Set Screw, M8×1—6, Quantity: 1

Thumb Screw, M3×16, Quantity: 1

Square Nut, M3, Quantity: 15; M5, Quantity: 2

T-Slot Nut, 20 profile, M3, Quantity: 4

Oil-Impregnated Bearing, 81210 (10 pieces)

Silicone Round Tube, Round Tube GJ-32, 20*8mm, Quantity: 1

Spring, 0.3×6×25, Quantity: 1; 0.5×6×35, Quantity: 1

Steel Wire (Brake Cable), Quantity: 1

Power Adapter, 12V10A, Quantity: 1

Use Base Left and Base Right to insert the copper sleeve, and then combine it with the motor.Assemble the X-axis and Y-axis motors, and avoid applying too much force when tapping the copper block.

The Floating Bearing Seat needs to be embedded with a copper sleeve.Use the Floating Bearing Seat to connect the spring, pressing it into the back of Base Left and Base Right, and tighten the screws.

First, install two support brackets on the assembled motor module on the left or right side. Then, cut the silicone tube into multiple pieces and fit them onto the paper pressing shaft. Finally, install the guide rail chain and the X-axis guide rail.

Assemble the control module by installing the control module's PCBA on the right side of the machine. Then, attach the steel wire with a tube sleeve to connect it to the top of the X-axis guide rail, and it will be complete.

After assembly is complete, it's time to write the parameters. The mainboard comes with built-in firmware, so the firmware flashing step can be skipped. Connect the power supply and use USB to connect to the computer. We only need to simply modify the firmware parameters in the upper computer. Additionally, there may be errors in the product, requiring minor adjustments to the parameters. The simplest way is to take a piece of paper and draw a line, for example, make the Y-axis move 100 millimeters and then measure the actual length. If it exceeds, reduce the Y-axis pulses slightly; if it falls short, increase them. If the writing requirement is not very high, a 1 millimeter error is acceptable.

Before powering on the machine, we need to install the pen at a height of about 3-5 millimeters from the paper surface, and then set the parameters to 4-6 millimeters, which is the lift height of the pen. The pen should not touch the paper surface, but it must make contact with the paper at the point of writing, even extending slightly beyond the paper to avoid issues with uneven surfaces.

If you want to achieve faster typing speeds, you can look for a supplier to customize development. Generally, suppliers will provide a complete assembly service, including PCB assembly.