Best Infill for Strength: Which Pattern and Percentage to Use
What is the best infill for strength? Test data shows walls and orientation matter more than pattern. Starting 3D print settings for each part type.
ArduPilot vs PX4: Which Drone Autopilot Should You Use?
ArduPilot vs PX4 compared: licence, supported vehicles, ground stations, tuning, ROS 2, and which open-source autopilot fits your drone, research, or product.
ASA vs ABS: Which Filament Should You Use?
ASA vs ABS compared with datasheet numbers: strength, toughness, heat, UV and weather resistance, how hard each is to print, and which to choose for your part.
Topology Optimization: What It Is, How It Works, and How to Use It
What topology optimization is, how the SIMP method decides where material goes, a step-by-step workflow, manufacturing limits, and when to use it.
Factor of Safety: Formula, Typical Values, and How to Choose One
What factor of safety means, how to calculate it from yield or ultimate strength, margin of safety, the values codes require, and how to choose one.
3D Printing Tolerances: What Each Process Can Hold and How to Design for It
3D printing tolerances for FDM, SLA, SLS and MJF, what they mean for a real part, the clearance to leave between mating parts, and minimum wall thickness.
Von Mises Stress: What It Is and How to Use It
What von Mises stress means, the formula for 3D and plane stress, a worked example with a safety factor, and when an FEA von Mises plot can mislead you.
How Strong Is PLA? Tensile Strength and Real-World Limits
PLA yields at about 50 to 60 MPa when printed solid, but it is brittle, weaker across its layers, and soft above about 55 °C. Here is what that means for a real part.
Predicting Mechanical Failure with FEA: A Worked Example
How FEA predicts mechanical failure: the failure modes it covers, a worked bracket example with hand-check and safety factor, and the mistakes to avoid.
Upgrade from Mach3: Mach4, LinuxCNC, and UCCNC Compared
Thinking about an upgrade from Mach3? This guide compares Mach4, LinuxCNC, and UCCNC on cost, hardware, and migration effort.