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         Best 3D printing material for child-safe educational toy prototype                    
                            
                
    
            
    Hello! I need advice on a small prototype for an educational toy aimed at children aged 3–6. It consists of interlocking geometric shapes (around 8–10 parts per set), with no mechanical function. I’m planning...        read more
                2
                942
                Jul 16
            
         Alodine coating enough for avionics enclosures?                    
                            
                
    
            
    Hi there, my project is a CNC machined enclosure in 6061-T6 aluminum for an avionics module that’ll be mounted in a wing compartment exposed to temperature swings, some humidity, but not direct salt spray....        read more
                2
                978
                Jul 15
            
         Resistant material for small gear system                    
                            
                
    
            
    Looking for the best material for a locking mechanism for an electric vehicle charging connector. Essentially a small gear system that engages to prevent unplugging during charging. The gear teeth are low-load but need...        read more
                2
                951
                Jul 04
            
         Effect of zinc flake coating thickness on bolt performance                    
                            
                
    
            
    In an automotive subframe project using M12 class 10.9 bolts, exposed to salt spray and vibration, I’m looking into zinc flake coatings for corrosion protection. Curious if doubling the coating thickness—from 8 µm to...        read more
                2
                1.0k
                Jun 26
            
         direct metal laser sintering                    
                            
                
    
            
    I need to obtain hole/channel sizes of 0.65 mm. will this be obtainable with a 40-60 layer thickness in tool steel?        
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                755
                Jun 13
             
                                         
    