3D-Printed Version Stringing Demo

This video provides a real-world example of how the machine operates and handles stringing efficiently. If you have any questions or feedback, feel free to leave a comment!

Watch the YouTube Demo

Functions

  • LB/KG display and setting
  • Pre-Stretch function
  • Constant-Pull system
  • Knot function
  • Tension adjustment manually during tensioning
  • Tension calibration
  • Stringing timer
  • Tension timer
  • Tension counter and boot counter
  • Detailed recording of tensioning logs
  • Pull speed with 9-speed selection

3D-Printed Parts Download

PicoBETH HW 3D Printed Version

Caution: Avoid using PLA for printing as its strength may degrade over time.

3D Viewing Model (Non-Printable)

PicoBETH HW 3D Viewing Model

Parts List

Main Components

No.Name
1Part-1 Main Body
2Part-2 Rear Limit Mount
3Part-3 Load Cell Bracket
4Part-4 PCB and TB6600 Mount
5Part-5 Power and Switch Cover
6Part-6 LCD and Button Mount
7Part-7 Rear Cover
8SGX 1610 200mm Sliding Table
9PCB Mainboard, Raspberry Pico, SparkFun HX711, Buzzer
10PCB Button Board
112004 i2c LCD
12TB6600 Stepper Motor Driver
13NJ5 20kg Load Cell (YZC-133)
14WISE 2086 Clip Head
15Activation Switch Mount
16Ø4 20cm Wire Wrap
17Power Switch 12cm
18DC Jack Cable 15cm
19Mainboard Power Cable 20cm
20TB6600 Power Cable 28cm
21XH2.54mm 4P Stepper Motor Signal Cable 15cm
22XH2.54mm 2P Front Limit Switch Cable 20cm
23XH2.54mm 2P Rear Limit Switch Cable 20cm
24XH2.54mm 4P LED Signal Cable (Same Direction) 25cm
25XH2.54mm 2P Cancel Button Cable (Same Direction) 25cm
26XH2.54mm 6P Five-Way Button Cable (Same Direction) 25cm
27XH2.54mm 4P LCD Signal Cable 40cm
28XH2.54mm 2P Clip Activation Switch Cable 50cm

Warning: Power cables must not be thinner than 22 AWG.

Screw List

No.NameQuantity
AGray Spring Wire Connectors3
BM3 × 10mm Self-Tapping Screws8
CM3 × 6mm Self-Tapping Screws15
DM2.6 × 10mm Self-Tapping Screws4
EM3 × 6mm Round-Head Screws2
FM4 × 16mm Hex Screws4
GM4 × 20mm Hex Screws4
HM4 × 30mm Hex Screws2
IM4 × 8mm Hex Screws2
JM4 Spring Washers10
KM4 Flat Washers10
LM5 × 80mm Hex Screws + Washers2

Assembly Steps

Follow the YouTube Tutorial Video for detailed assembly instructions.

Step 1: 3D-Printed Parts


Main Body (PART-1)

  • The main body must withstand significant deformation forces. Recommended print settings:
    • Wall Thickness: At least 5mm
    • Infill: At least 30%

Load Cell Bracket (PART-3)

This part serves as the mounting bracket for the Load Cell and the sliding table. Recommended print settings:

  • Infill: 100%

Step 2: Assembling the Main Body (Part-1)

  1. Attach the bottom of the main body to the sliding table using M4 x 30mm screws + spring washers + flat washers x2 (keep them slightly loose for adjustment).
  2. Attach the sides of the main body to the sliding table using M4 x 20mm screws + spring washers + flat washers x4 (keep them slightly loose for adjustment).
  3. Align the main body with the sliding table.
  4. Tighten the bottom M4 x 30mm screws x2 to a torque of 1.5 Nm.
  5. Tighten the side M4 x 20mm screws x4 to a torque of 1.5 Nm.

Caution: Ensure washers are installed, and tighten screws to the recommended torque to prevent damage to the 3D-printed parts.

Step 3: Assembling the PCB and TB6600 Mount (Part-4)

  1. Secure the TB6600 to the mount using M3 x 10mm self-tapping screws x4.
  2. Secure the PCB using M3 x 10mm self-tapping screws x2 and M3 x 6mm self-tapping screws x2.
  3. Connect the TB6600 power cables, control signal cables, and motor signal cables.
  4. Secure the TB6600 mount to the frame using M3 x 10mm self-tapping screws x2.

Step 4: Wiring the Power Cables

  1. Install the power switch and DC jack onto the Power Cover (Part-5).
  2. Insert the mainboard power cable into the mainboard.
  3. Use gray spring wire connectors to connect the DC jack positive wire to...
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