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Slim linear guide for precise lab automation stage
I’m designing a compact linear stage for a lab automation setup, used to move a microplate (about 300 grams) precisely along a 150 mm travel. The system needs to achieve repeatability under ±0.05 mm... read more
0
6
Advice on plastic insert gripping an inner rotating tube
Hello, I'm designing a plastic coupling sleeve to mount an aluminum shaft (20 mm OD) from the inside. The sleeve needs to grip the shaft firmly enough to transmit rotational torque from a small... read more
4
19
Aug 21
O-ring seal design for removable marine sensor housing
Hi! My project is a small-scale marine sensor housing; it needs to stay functional when briefly submerged (around 0.5 m depth) or exposed to heavy splashes on a boat deck. I’m using a machined... read more
4
135
Aug 20
Compact two-axis rotation without U-joints?
Hi all! I’m building a compact gimbal for a sensor head that needs to rotate around two perpendicular axes (pan and tilt). I’m trying to stay away from standard U-joints — they take up... read more
4
1.3k
Aug 14
SLA wall thickness issue for microfluidic channels
Hi, I created a 3D design for a small microfluidic part using SLA (Clear Resin) with internal channels ~0.4 mm wide and wall thickness around 0.5 mm. The function relies on optical inspection through... read more
1
105
Jul 29