Today, Malaysians across the nation celebrate the 68th anniversary of our beloved country’s independence. Since 1957, Malaysia has overcome many challenges, yet the spirit of freedom, unity, and progress continues to guide us forward.
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| Merdeka day 31 August 2025 |
On this historic day, let us honor the sacrifices of our past heroes and ensure that future generations inherit a nation that is strong, peaceful, and united.
🇲🇾 Long live Malaysia – Happy 68th Merdeka!
Robotics is one of the most exciting ways to learn science, technology, engineering, and mathematics (STEM). In this project, we’ll build a DIY Electric Crawler Robot using a simple kit. This crawler robot is fun, easy to assemble, and a perfect educational activity for students and beginners.
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| DIY electric crawler robot. |
By the end of this guide, you’ll have a working robot that crawls forward using a motor, wheels, and some creative decorations.
A crawler robot is a small motor-powered machine that moves forward by rotating wheels or rollers. Unlike a walking robot, it uses simple mechanisms to crawl smoothly. This type of project introduces learners to basic electronics, mechanical parts, and assembly techniques.
Here’s what comes with the kit:
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| Crawler robot kit. |
Wooden base/frame
DC motor
Battery holder (with wires)
Wheels and O-rings
Axles and bushings
Wire (for tentacles)
Foam balls (for eyes)
Movable eyes
Double-sided tape and cable ties
1. Prepare and Assemble the Frame
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| Assemble the body frame. |
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| Connection between the motor and battery holder. |
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| Install the motor and battery box onto the frame. |
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| Slide the axle through the frame. |
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| Fit O-rings onto wheels. |
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| Attach the wheels onto the axles |
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| Install the tentacles. |
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| Stick the movable eyes with tape or glue. |
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| Fit the balls onto the tentacles. |
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| Switch ON the crawler. |
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| Watch your crawler come alive! |
Your STEM Electric Crawler Robot is now complete! 🎉 Watch it crawl across the floor and enjoy the satisfaction of building your own robot from scratch.
🛠️ Hands-on mechanical assembly
⚡ Basic electronics with motor & battery
🎨 Creativity with decorations (tentacles and eyes)
🎓 Perfect for school science projects and beginner robotics
Building a DIY Electric Crawler Robot is a fun and educational way to explore robotics. Whether you’re a student, teacher, or hobbyist, this project is a fantastic introduction to STEM learning.
👉 If you enjoyed this build, make sure to Like, Share, and Subscribe to get more DIY STEM tutorials!
STEM (Science, Technology, Engineering, and Math) toys are an exciting way to combine fun and learning. In this project, we’ll assemble a Fighter Aircraft STEM Toy that not only looks cool but also helps kids explore basic engineering, motors, and aerodynamics.
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| Fighter aircraft STEM toy |
Before we start, open the kit and lay out all the parts. You should have:
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| Fighter aircraft kit parts |
Wooden boards
Motor
Wheels
Fan
Battery holder
Wires and accessories
Start by connecting the two baseboards to the motor. This forms the foundation of your aircraft and prepares it for wiring.
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| Connect the two base boards to the motor. |
Next, connect the wires from the battery holder to the motor terminals.
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| Connect the wires from the battery holder to the motor terminals. |
You can connect the positive and negative wires to either side—the motor will still work.
If the jet moves backward when switched on, simply swap the wires, and your aircraft will move forward.
Attach the fuselage panels to the wing piece.
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| This begins to shape the aircraft |
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| Fix the top panel securely onto the fuselage. |
Slide the iron axle through the fuselage and attach the wheels using the orange bushings.
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| Slide the iron axle and orange bushings. |
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| Attach the wheels |
This is the final piece that brings your fighter jet to life.
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| Push the fan onto the motor shaft. |
Switch on the power and watch as your fighter aircraft comes alive—rolling forward with the fan spinning!
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| Slide the battery switch to turn ON. |
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| Fighter aircraft moving forward. |
This STEM toy is more than just fun. Children will learn about:
How electric motors work
Simple wiring and polarity
Basic aerodynamics and rolling mechanics
Problem-solving by adjusting connections
Small parts are included—avoid putting them in the mouth or nose.
Always build under the guidance of a teacher or adult.
Handle the wooden boards and motor gently to avoid damage.
The Fighter Aircraft STEM Toy is a fantastic way to mix creativity, hands-on building, and science learning. It’s a simple yet rewarding project for students and hobbyists alike.
👉 If you enjoyed this guide, please subscribe to our channel, like this post, and share it with friends so more people can explore the fun of STEM! 🚀
If your ULTIMAX IRSDUT-ZD90SP II soldering iron has stopped heating properly or takes forever to warm up, there’s a good chance the heating element is worn out. Replacing it is a straightforward process that can bring your soldering station back to life — and save you money compared to buying a new one.
In this guide, we’ll walk through unboxing the replacement heating element, disassembling the soldering iron, replacing the old part, and testing the repair.
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| Check that it matches the specifications of the original one to ensure compatibility. |
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| Remove the nut, tip enclosure, and soldering tip from the front of the soldering iron. |
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| Unscrew the screws securing the soldering iron’s cover. |
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| Once the screws are out, use a small pry tool to gently open the casing without damaging the housing. |
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| Carefully pull out the heating element from the tip section. |
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| Cut any wires connected to it, but make note of their positions — this is important for reconnecting the new element correctly. |
Position the new heating element in place of the old one.
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| Connect the black wire and blue wire together to the longer wire of the heating element. |
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| The short wire from the heating element should connect to the switch. |
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| Use heat shrink tubing to insulate all soldered joints for safety. |
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| Use a heat gun to shrink the tubing over the solder joints until it fits snugly. |
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| Place the heating element back into the nipple section. |
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| Reinstall the switch and all internal components in reverse order of disassembly. |
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| Fit the cover back and tighten the screws. |
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| Reattach the soldering tip, tip enclosure, and nut. |
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| Turn on the soldering iron and let it heat up. |
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| Clean the tip using a damp sponge or brass wool. |
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| Apply solder wire to ensure it melts smoothly. |
And that’s it! Your ULTIMAX IRSDUT-ZD90SP II soldering iron should now be working perfectly again. This simple repair not only saves you money but also keeps your tools in service for years to come.
We’ve also made a video guide showing the entire unboxing and replacement process.
If you found this guide helpful, consider sharing it with fellow DIY enthusiasts and technicians who might face the same problem.
If you're using the Saike 952D rework station, sooner or later, you might need to replace the soldering iron handle due to wear, damage, or inconsistent heating. In this post, we’ll walk you through the unboxing, installation, and testing of a new replacement handle — step by step!
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| Replace the soldering iron handle. |
We ordered a compatible replacement soldering handle for the Saike 952D, and here’s what came in the parcel:
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| Components required for replacement. |
✅ 1x Soldering Iron Handle
✅ 2x Spare Heating Elements
✅ 🔧 Pre-installed Heating Element in the Handle
That’s right — the new handle already comes with one heating element installed, so it’s ready to use immediately. The additional two spare heating elements are a great bonus for future replacements.
Replacing the handle is quick and easy. Just follow these simple steps:
Make sure the Saike 952D is turned off and unplugged for safety. Let the existing handle cool down if recently used.
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| Unplug the old handle soldering iron. |
Locate the connector of the soldering iron handle at the front of the station. Gently unplug it by unscrewing or pulling it out, depending on the model.
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| Plug the new handle soldering iron. |
Take your new handle and plug it into the same port. Make sure the connection is secure.
Once everything is connected:
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| Setting the temperature. |
Turn the Saike 952D back on.
Switch to the soldering iron mode.
Set your desired temperature — we recommend starting at 350°C for general testing.
The station should recognize the new handle and begin heating immediately.
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| Test with the solder wire. |
Grab some soldering wire and try it out on a small PCB or scrap components. The heating should be consistent, and the solder should melt smoothly. If everything works well, your replacement is a success!
With just a few simple steps, you’ve successfully replaced your Saike 952D soldering iron handle. Whether you're a hobbyist or pro technician, this quick upgrade keeps your station running like new.
We’ve also made a video guide showing the entire unboxing and replacement process.
If this tutorial helped you out, don’t forget to:
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🔁 Share with your maker friends
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