## distance between two cylinder with Normal (Parallel) Dist

enpalani
Power User Posts: 81
Joined: Thu Aug 01, 2013 11:44 pm

### distance between two cylinder with Normal (Parallel) Dist

If we report distance between two cylinder with Normal (Parallel) Dist option, where is the distance calculate in two diff. cylinder?.

Case 1: If two cylinder is perfect parallel, results will same in whole cylinder.

Case 2: If two cylinder is not perfect parallel (slight variation ex: 0.2mm parallelism), results will not same in whole cylinder.

where is the distance calculate in two diff. cylinder in above option?.

Kindly clarify.

enpalani
Power User Posts: 81
Joined: Thu Aug 01, 2013 11:44 pm

### Re: distance between two cylinder with [b]Normal (Parallel)

Hello Nate,

Can you help us for above ?

US_Helpdesk
Moderator Posts: 1087
Joined: Wed Feb 23, 2011 7:26 pm

### Re: distance between two cylinder with [b]Normal (Parallel)

The option is mainly for two lines that are not on the same plane:
- “Normal Dist”: it will calculate the shortest distance between the two lines
- “Normal (parallel) Dist”: it will calculate the distance as if the two lines are parallel

When two cylinders are not perfectly parallel, the calculation is done this way:
1. Take center point of cylinder axis 1, and calculate the distance from it to cylinder axis 2
2. Take center point of cylinder axis 2, and calculate the distance from it to cylinder axis 1
3. Average the two distances to get the final result
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