Understanding the FDM Fixture parameters

Objective:

Review the key parameters for the fixture creation step in the basic jigs and fixture workflow and how changes in their value affect the workflow.

Applies to:

  • Stratasys, nTop, FDM Fixtures

Procedure:

Fixture Shape

Edge to Cavity Margin

Fixture Height

Fixture Depth

Part Clearance

Minimum Pillar Thickness

Cavity Detail

parameters.PNG

 

Fixture Shape

Choose between a rectangular outline or part outline shape to create the fixture design.

fixtureshape.PNG

 

Edge to Cavity Margin

The offset distance between the cavity and the outer perimeter of the jig.

edgetocavity-white.PNG

 

Fixture Height

The total height of the fixture is measured from the maximum height and the minimum height of the object. Additional height is added to the floor of the fixture to maintain the same Fixture Depth.

height.PNG

Fixture Depth

How deep the part sits in the fixture design space to create the jig. A larger fixture depth increases the depth of the resulting jig. Fixture depth should not exceed the total height of the input design.

depth.PNG

Part Clearance

The clearance distance from the input part and the fixture. The clearance value should not be greater than the cavity detail parameter.

clearance.PNG

Minimum Pillar Thickness

If the bottom of your part has holes or something similar, this parameter accounts for this to avoid creating pillars.

pillar1.PNG

 

Cavity Detail

The level of detail you want to preserve in the cavity of the jig. A lower value increases the level of detail captured but is more computationally expensive. This value should be the minimum feature size of your part. The Cavity Detail should not exceed the clearance value of the part.

cavdetail.PNG

More on this topic:

 

Keywords:

 thickness parameter resolution stratasys height fixture cavity clearance pillar depth jig 
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