POM Product Nests for an Assembly Fixture
Application
Assembly Station Fixture
Material
POM / Delrin
Quantity
120 pieces
Process
3-Axis CNC Milling
Finish
As Machined
Lead Time
10 business days
Engineering Challenge
Product nests must not mark or scratch a painted housing during 6,000 cycles per shift. Pocket profile must locate housing consistently within 0.15 mm.
DFM Analysis
POM recommended over aluminum to eliminate marring risk. Pocket radius confirmed against housing profile. Vent holes added to prevent vacuum lock on insertion.
Manufacturing Solution
POM nests machined to pocket profile with 0.05 mm positive clearance on locate faces. Vent holes as discussed. Batch produced and first-article profile checked on CMM.
Inspection Method
Pocket profile and locating-face positions measured. Surface roughness Ra checked on contact surfaces. Functional test with customer-supplied housing sample.
Final Result
Zero marring reported after 3-month production run. Repeat order with additional pocket variants placed.
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