SMD Pick and Place Machines from China

The price of a Japan or Korea floor type SMD Pick and Place Machine can be 50,000USD or 100,000USD. With the development of integrated circuits, IoT and industrial automation in China, CNC Machines are Not the only cost performance industrial equipment from China. 3D Printers, SMD Pick and Place Machines, etc are recently getting praise. Let's take a look on the benchtop or desktop, floor SMD Pick...

Open Source BotDigg Robot Arm

This is not a 3D printer, but a writing graphics robot arm, we name it BotDigg Robot Arm. The full configuration This assembly is still very original ah, ah, very original ... ... We first look at how the line is connected: First of all three stepper motor drive chip, pay attention to the direction of the other anti-anti, it's better use heat sink above This small package of black blocks is set to...

MOSFET Repair on RAMPS Board why and how

Firstly thanks to Contemporary Maker Rob Schwartz, his blog explain why and how to repair the MOSFET on Ramps 1.4 Board "When I first got the RAMPS 1.4 board, I wondered why the power MOSFETs for the hotends and the heated bed had no heatsinks. However, after connecting the RAMPS board to the printer, they seemed to work just fine. I soon forgot about the problem entirely... but that was the wrong...

Stepper Motor Linear Actuator

Last week we talked about the stepper motor, and this week we want to go further about the topic which will be stepper motor linear actuator or linear stepper motor. There are three types of linear stepper motors and we are talking about the integrated stepper motor linear actuators, they are External Drive, Non-captive and Captive Linear Steppers. Haydon Kerk a linear motion specialist provide wo...

Delta Printer vs Prusa i3

There are talks on Reddit about which to buy, a delta printer or a prusa i3. Both of the 3d printers are RepRap origin suitable for personal 3der or maker. What advantages and disadvantages are there to a delta printer vs something like a prusa? Advantages to a delta printer: large build area (especially vertically) ease of scaling the design vertically (just lengthen some rods/extrusions) simpler...

Difference between a Kossel and a Rostock RepRap

What is the difference between a Kossel and a Rostock RepRap? The above pictures are from RepRap, it can be read that on the left is a linear shaft and linear bearing combination and on the right is a aluminum profile and linear rail delta robot. 1. Both are delta robot RepRap built in 2012 by Johann in Seattle, USA. And the difference is that Kossel is based on his Rostock prototype. Does that me...

Outline of Stepper Motor

Hi, this is Tiger Huang from RobotDigg, today’s topic is “Outline of Stepper Motor”, here you can see is a Nema17 4 lead wire bipolar 1.8 degree single stack linear stepper motor. Let’s dismiss the linear stepper motor to find out what’s inside and the factors of a stepper motor. Firstly it’s stepper motor, not servo motor or normal dc motor. There is only one piece magnetic steel which should be ...

X-CUBE LCD based SLA Resin 3D Printer Tutorial

Some of the material will be hardened after heating, some substances will be hardened in case of cold, and this material met with the light will occur hardening, this phenomenon will be called "light curing." Photopolymer A material called Photopolymer, which consists of a polymer monomer and a prepolymer, typically a liquid, a photoinitiator (a photosensitizer), a UV light of a certain wavelength...

Common problems when surface mount components

Generally, SMT includes surface mount technology, surface mount devices, surface mount components, SMT management Common problems when surface mount components 1, nozzle deformation, plug, damage, lack of vacuum pressure, air leakage, resulting in suction unsuccessful, take material incorrect,or throwing material because of a wrong identification. Solution: check the equipment daily, test the NOZZ...

Fidget Spinner Tricks

If RobotDigg owe you a story of 2017, here it is. Fidget Spinner Is there tricks for Fidget Spinner? RobotDigg do Not have such tricks. Starting from early 2016, when in Feb of 2017, fidget spinner is roaring. You can find it quite noisy on Esty the most popular Handmade, Vintage & Creative Goods Store and Thingiverse. Reporting from my China shipping partner, 80% parcels express to US is Fidg...