Delta Bot: DIY 3D Printer : 12 Steps (with Pictures) – Instructables


Have you ever dreamed of having your own 3D printer but thought it was too expensive? Well, we have good news for you! With some basic tools and a little bit of know-how, you can build your own 3D printer at a fraction of the cost. In this article, we will guide you through the process step by step, providing all the necessary information and resources to make your dream a reality.

Gather the Parts

To start off, you will need the following parts for your DIY 3D printer. While some of them can be found at specific stores, we will also suggest cheaper alternatives whenever possible.

V-Slot™ Linear Rail 1500mm – 4x

Aluminum Spacers 1/4 in – 8x

Mini V Wheel Plate™ – 3x

Eccentric Spacers 1/4 in – 6x

Low Profile Screws M5 25mm – 12x

Delrin Mini V Wheel kit – 12x

Mini V Wheel Precision Shim – 24x

You can find these parts at or

NEMA17 Stepper Motor 40mm Long, 1.2A – 4x

Idler Pulley Wheel for 6mm Belt 5mm bore – 3x

Toothed clamp for open ended belt – 3x

Timing Belt Tensioner Spring – 3x

A4988 stepper driver – 4x

12V 4020 Turbine Fan – 1x

RAMPS LCD2004 with SD Socket – 1x (optional)

Limit Switch with Roller – 4x

Arduino Mega 2560 R3 – 1x

Open Ended 6mm Width GT2 Belt – 5x

Ramps 1.4 Board – 1x

UM GT2 Pulley 20 Tooth 5mm Bore – 3x

Post Assembly T Nuts for 2020 M3 – 1x (100pc)

Post Assembly T Nuts for 2020 M5 – 3x (1pc)

You can purchase these parts from

0.090″ Aluminum Sheet – 12″ x 24″

You can find this item at any online metal store.

E3D V6 bowden kit – 1x (use lite version if on a budget)

Groove Mount bowden Adaptor – 1x

These parts are available at

500g calibration weight

Signswise MK3 Reprap aluminum Round Heatbed 3D Printer Delta

12V 30A DC LED power supply

25mm M3 Stand-offs Male-Female

Epoxy for metal, plastic

Traxxas 5347 Rod Ends with Hollow Balls Large Revo

Aluminum/carbon tube 4mm inside diameter 6 x ~350mm

Power cord length based on your preference (only male sides needed)

Thermistor 10K Probe Sensor (for heated bed)

These items can be found on Amazon.


  • Metric socket M3 8mm – 110x
  • Metric socket M3 10mm – 10x
  • Metric socket M3 12mm -10x
  • Metric socket M3 15mm – 6x
  • Metric socket M3 20mm – 6x
  • Metric socket M3 25mm – 6x
  • Nylon spacer #6 1/4 in – 20x
  • Nylon spacer 1/4 in hole 1/2 in long – 3x
  • M3 hex nuts – 50x
  • Metric socket M5 25mm – 3x
  • M3 washers – 10x
  • M5 socket screw 25mm – 3x
  • M5 washers (fender type best) – 3x
  • M5 Locknuts – 10x
  • 6/32 eye bolt – 1x
  • M4 Screw 10mm – 4x
  • M4 Set screw any above 20mm – 6x
  • M3 Screw 10mm or 15mm

Additional bolts can be purchased from various stores.

Other Parts

  • MK7 drive gear
  • Micro servo for bed auto level
  • 1/4 in plywood to cover electronics 2′ by 2′ or more
  • Spray paint for wood (optional)
  • Switch for power (optional)
  • 8 – 10 awg wires >2m
  • 4 pin wire extender for extruder >500mm of wire – 4x
  • 2 pin plugs and extension wire for endstops and other electronics – 5x
  • Long stretchy material used for stabilizing extruder (ex. half of surgical tubing) (optional)
  • 623ZZ 3x10x4mm Bearing

Recommended Tools

To assemble your DIY 3D printer, you will need the following tools:

  • Table saw or miter saw (for cutting aluminum plate and extrusions)
  • Drill press or hand drill and bits
  • Solder tools (optional: heat gun and heat shrink for insulation)
  • Allen wrench and hex wrench or pliers
  • 6/32 screw tap for 500g counter weight
  • Sheet metal bender (alternatively, a vice and hammer can be used)
  • Dremel (or hack saw)


By gathering the necessary parts and having the right tools on hand, you are ready to embark on the exciting journey of building your own DIY 3D printer. Feel free to explore the provided links for more information and to purchase the required parts. Remember, with a little bit of patience and perseverance, you can turn your dream into a reality. Good luck!

DIY 3D Printer

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