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YEJMKJ 3D printer parts and accessories, by sales rank

Every YEJMKJ listing in our parts & accessories section on Amazon UK, by sales rank. The brand comes from Amazon’s own listing data.

15 listings tracked, 2 on offer right now.

Product	Material	Rating	Price	Deal
YEJMKJ Ratio 50:1 Planetary Gearbox for Nema 17 Stepper Motor 42-66mm Backlash	—	—	£47.38	11% below
no image yet YEJMKJ Ratio 20:1 Planetary Gearbox for Nema 23 Stepper Motor 60-90mm Backlash	—	—	£65.87	—
YEJMKJ Ratio 10:1 Planetary Gearbox for Nema 34 Stepper Motor 90-110mm Backlas	—	—	£117.32	14% below
no image yet YEJMKJ Nema 34 Closed Loop Stepper Motor Kit with Closed Loop Stepper Driver 1	—	—	£166.89	—
no image yet YEJMKJ 5 Pack Nema 17 Stepper Motor TR8x8 200mm with T8 Lead Screw 1.8‌°‌ 2 Ph	—	—	£86.74	—
no image yet YEJMKJ 5 Pack Nema 17 Stepper Motor TR8x8 240mm with T8 Lead Screw 2 Phase 1.8	—	—	£65.60	—
no image yet YEJMKJ Nema 23 Stepper Motor 2 Phase 1.8‌°‌ 1.3Nm(184.1oz·in) High Torque Bipo	—	—	£38.14	—
no image yet YEJMKJ 5 Pack Nema 17 Stepper Motor TR8x8 310mm with T8 Lead Screw 1.8‌°‌ 2 Ph	—	—	£68.72	—
no image yet YEJMKJ 5Pack Nema 17 Stepper Motor 2 Phase 1.8‌°‌ 0.84Nm(118.95oz·in) High Tor	—	—	£83.94	—
no image yet YEJMKJ Nema 17 Stepper Motor TR8x8 310mm with T8 Lead Screw 1.8‌°‌ 2 Phase Hig	—	—	£30.75	—
no image yet YEJMKJ Nema 34 Stepper Motor 1.8‌°‌ 2 Phase High Torque 5.2Nm(736.38oz·in) Bip	—	—	£78.91	—
no image yet YEJMKJ Ratio 20:1 Planetary Gearbox for Nema 34 Stepper Motor 90-133mm Backlas	—	—	£145.62	—
no image yet YEJMKJ 5 Pack Nema 17 Stepper Motor TR8x8 150mm with T8 Lead Screw 2 Phase 1.8	—	—	£61.22	—
no image yet YEJMKJ Nema 17 Stepper Motor TR8x8 240mm with T8 Lead Screw 2 Phase 1.8‌°‌ Hig	—	—	£29.89	—
no image yet YEJMKJ 3 Pack Nema 17 Stepper Motor TR8x8 210mm with T8 Lead Screw 1.8‌°‌ 2 Ph	—	—	£47.61	—

3D printer parts and accessories by brand

Guides

• Belts, tension and layer shifts
  Ringing, wavy walls and prints that jump halfway through are usually mechanical. How to tension a belt by feel, and what else causes a shifted layer.
• Build surfaces compared: PEI, glass and textured plates
  Smooth PEI, textured PEI, glass and the rest — what each is actually good at, which filaments they fight with, and when a worn sheet is your real problem.
• Calibration tools: calipers, gauges and what you actually need
  One tool does most of the work and costs about a tenner. What digital calipers are for, and which other measuring kit is worth owning.
• Finishing tools: deburring, sanding and cleanup
  A handful of cheap tools turn a rough print into a finished part. What to buy first, the right sandpaper progression, and why wet sanding beats dry.

Best-selling Parts & accessories by year — which actually sold best, going back several years, ranked by sales position rather than opinion.