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DMLS tolerances for screw holes and sealing surfaces
Hi, I’m working on a small metal housing (around 120 × 80 × 40 mm) that will be 3D printed with DMLS for a sensor module. It needs threaded M3 screw holes and a... read more
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29
2 mm stainless sheet bend radius
I’d like some help with a project. I’m designing a stainless steel 304 enclosure with multiple 90° flanges (sheet thickness ~2 mm). For strength and edge alignment, I want the inside bend radius to... read more
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53
Oct 24
Urethane casting for sensor housings
Hello all, I’m looking for some advice. I’m working on a prototype of a handheld casing for an outdoor sensor (approx. 20×10×5 cm) that needs to be rigid, weather-resistant, and have fine surface details.... read more
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54
Oct 17
Will a threaded hub and locknut hold up in a conveyor roller assembly?
hi! my project is a small conveyor assembly where the rollers need to be swapped out fairly often, depending on the material we’re running. I’m considering using an M14 threaded connection between the aluminum... read more
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57
Oct 22
Design challenge: rope-to-rope transfer in a small cylindrical coupling
Hi, working now on a small-scale linear actuator project and need a compact coupling between two coaxial cylinders. Both are 44 mm in diameter, with the upper one hollow (22 mm inner Ø). The... read more
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78
Oct 17
Compact linear slide – how to balance smooth travel with lateral stability
hi!I’m working on a compact linear slide mechanism for a handheld inspection tool. The carriage rides between two vertical guide rails and has to remain laterally constrained while still moving smoothly along the axis.... read more
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139
Oct 15
Printed aluminum parts in pressure applications
Hi! Questioning about prototyping a hydraulic valve housing (normally CNC’d in 6061) - considering aluminum 3D printing instead, mainly to speed up design iterations. The part would see ~150 bar during bench tests, with... read more
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121
Sep 29
High-temperature chemical pump housing in PEEK, tips on avoiding warpage?
Hi everyone, I'm working on a small pump housing for a chemical metering application. The part will be injection molded in PEEK, exposed to roughly 180 °C fluid and aggressive solvents. It's a compact... read more
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237
Sep 30
Adjustable brackets for 30 mm tubing – MJF PA12 vs CNC POM for strength and stability?
I’m developing a set of adjustable brackets to secure 30 mm diameter aluminum tubing in a display frame. Each bracket will have a split collar design with an M6 through-bolt for clamping and needs... read more
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406
Sep 30
Polyjet for clear wearable casings
Has anyone here used Polyjet for transparent consumer electronics casings? I’m designing a small wearable device that needs a clear front cover to show internal LEDs and sensors. I know polyjet can do translucent... read more
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356
Sep 22