Tilley

CNC gear machining turns blank discs into the teeth that drive conveyors, actuators, pumps, and robots. Unlike molded gears, machined gears handle real torque, tight backlash, and one-off sizes without any tooling investment. This guide covers the gear types a CNC shop can make, the processes behind the teeth, and

Press fit tolerance is the difference between a bearing that stays seated for years and one that spins loose in a month. Too little interference and the joint loosens under load. Add too much, and the housing cracks or the assembly press bottoms out. This guide explains interference, clearance, and

CNC undercuts are the features that quietly double a part’s price. An undercut is any surface a standard tool cannot reach from a straight direction. Internal grooves, snap-fit lips, and recessed threads are typical examples. Because end mills cut only where they can physically travel, these features force special tools,

Thin wall machining separates routine CNC work from the parts that keep machinists awake at night. A wall that looks fine in CAD can chatter, deflect, or warp the moment the cutter touches it. The result is scrapped parts, blown tolerances, and surprise costs. This guide explains why thin walls

Chamfer vs fillet is one of the first edge questions we check on any incoming CNC drawing. Both features break a sharp corner, yet they do it with different geometry, different tools, and different price tags. Chamfers are straight bevels, usually cut at 45 degrees. A fillet, by contrast, is