Lubricant for very close tolerance moving parts  

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bob.h9
(@bob-h9)
Active Member

Doing mechanical puzzles out of Prusament PLA. Nature of puzzle requires small clearance between moving parts. Any suggestions for lubricant? Parts will be handled so can't be messy or muck up the hands.

Don't want to change material.

Posted : 09/10/2019 6:19 pm
chocki
(@chocki)
Honorable Member

Furniture polish, but spray it on the cloth then rub the parts with it.

Or how about a food safe wax? :eg : https://www.timbecon.com.au/food-safe-wax

I use a food safe spray for moving parts called Interflon Slide Wax, whilst it may not be ideal for what you want, without any further information on what you are actually trying to lubricate and guessing you have sliding parts, then maybe look for something similar, maybe board wax etc.

Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet....
Posted : 09/10/2019 7:57 pm
bob.h9
(@bob-h9)
Active Member

I have tried spraying the parts with diluted liquid soap, then letting air dry. It helps but the parts still don't glide as I would like.

Previous assemblies were made with a no-name filament and slid wonderfully. I have had to give more clearance with Prusament. Due to growth while printing, or the "slipperiness" of the two filaments?

 

Posted : 09/10/2019 9:02 pm
jerry.s3
(@jerry-s3)
Trusted Member

Bee's wax

Posted : 09/10/2019 9:37 pm
Tim
(@tim-m30)
Famed Member

Any of the bicycle silicon or teflon dry lubes. They typically form a dry film that adheres pretty well.  Anything else seems to puff up the plastic, making it swell when applied. 

It is always wise to get more than one opinion......
Posted : 09/10/2019 10:59 pm
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