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Recent content by Rex Hang

  1. Rex Hang

    what are the equations of state space on open loop active suspension ?

    How can we find the state-space equations for the active suspension system with this information?
  2. Rex Hang

    Which one is the best, a Fiber laser Marking Machine or a UV laser marking machine?

    Fiber Laser: Blasts logos and barcodes like a champ! Loves metal, plastics, even wood! But, can get a bit hot-headed... UV Laser: Whispers intricate designs with a delicate touch. Hugs fragile materials like glass and electronics. But, takes its time with thicker jobs... ❄️ share your...
  3. Rex Hang

    How to Attach Extra Wood to an Already Built Ridge Beam?

    Adding wood alone might not be enough. Consider sistering, steel straps, or internal reinforcement options with a pro. Building safety comes first
  4. Rex Hang

    Anti spatter for laser cutting?

    Here are some suggestions you can try: Inconel spatter fix: Try Inconel-specific anti-spatter: Stronger adhesion for this tricky metal. Double coat: Thin layers might cling better than one thick one. Nitrogen assist gas: Can shield the cut and potentially reduce spatter. Cardboard shields...
  5. Rex Hang

    Welding 310 stainless steel with ER308/308L

    Because 310SS and 308SS filler metal have different alloy compositions, welding 310SS material with ER308/308L filler metal may cause problems. Although the impact may be minimal in your case because the design temperature is below 1000°F, it's still important to take into account possible...
  6. Rex Hang

    Welding Sockolets in 304

    One common solution is to drill a small hole (about 1/16") near the weld on the side of the socket. The hole can be used to purge the oxygen with an inert gas, such as argon. Once the oxygen has been purged, the hole can be plugged with a weldable plug or capped with a small piece of pipe...
  7. Rex Hang

    H-Lase fiber laser source reverse engineering

    It's wonderful that you've acquired a second-hand H-LASE fiber laser source. If you need a manual for this specific type of laser source, I recommend reaching out to the manufacturer directly. You can typically find contact information on their official website or by searching for their customer...
  8. Rex Hang

    What are the best gantry CNC plasma flame cutting machines for cutting stainless steel?

    I understand the importance of having the right equipment. Now, when it comes to cutting stainless steel, precision is key, and you want a machine that's not just reliable but also efficient. Let's discuss the features and other important aspects for this.
  9. Rex Hang

    I want to start a laser cutting business. What kind of machine will suit all types of materials?

    Tell me about the different kinds of machines, which can help me in my work.
  10. Rex Hang

    JIC/AN installation best practice

    ello and welcome to the community! It's great that you're seeking best practices for installing JIC/AN fittings, and your questions are quite detailed. Here are some insights that might help: Use of Gaskets like SECO seals: SECO seals can be beneficial in high-pressure systems, and using them...
  11. Rex Hang

    Opening at a RC Wall/Column

    It's great that you're considering the practical aspects of your design. When dealing with openings in reinforced concrete elements, especially in cases where only a small portion of the column is carrying the vertical load, it's crucial to assess the structural integrity and redistribution of...
  12. Rex Hang

    Stress Concentration in D-Profile Shaft

    Handling stress concentrations in your motor shaft transition can be tricky. To tackle this, consider using the notch sensitivity factor ('q') and exploring the stress concentration factor (Kt) specific to your design. These factors provide insights into fatigue life and the severity of stress...
  13. Rex Hang

    Aluminium laser cutting - HAZ

    Dealing with Heat-Affected Zones (HAZ) in aluminum laser cutting can be challenging. Opting for the right laser parameters and techniques is crucial to minimize HAZ and ensure clean, precise cuts.
  14. Rex Hang

    Trying to cut 7 gauge steel hrs

    I understand your frustration, especially when you've successfully done test cuts but encounter issues during the actual cutting process. It could be related to the settings in your program. Make sure you've double-checked the feed rates, power settings, and focus for your machine. Additionally...
  15. Rex Hang

    Laser Etch at Origin

    Hey, Try this out hope this will help! It sounds like you might be experiencing issues with your laser cutter's origin point. To fix this, check if there's an option in your machine's settings to disable origin point cutting or make sure your DXF files have the correct origin point. This...
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