Air eraser media


#1

I’ve read on here that air erasers can be useful for finishing parts where it is too hard to reach
What media do people use with air erasers?
I have ordered 1, and it comes with Aluminium oxide, but maybe that will be too aggressive. Have heard someone mention baking soda…


#2

My curiosity is piqued.


#3

I couldn’t see an issue with using baking soda its not as abrasive as aluminium oxide but will be better for the application as breaks apart on impact with the part surface.
I believe the statue of liberty was refurbished this way so should work fine.


#4

I am going to try this, while most of my prints don’t require a lot of clean up, those that do this will/may help in that process, especially the hard to get areas. Does anybody have experience or ideas on which resins this works best on?


#5

By air eraser… I presume you mean media blaster or sand blaster.

… and yes it is a MUST for final finish, presuming you are not painting.

The beauty of it is that you can file, sand and finish all the rought stuff, and end at 250-400 grit… then just media blast it. 100% perfect, uniform finish… EVERYWHERE!. All the sanding marks are gone.

Fine 400-600 alimunim oxide is fine (but not coarser). If you think it is too agressive, then go to a glass bead (the geometry of the grains is round and smooth, instead of sharp.

… but the take-away is BUY A MEDIA BLASTER! :wink:


#6

By saying not painting… I only meantthat if you are, you don’t NEED that level of finish.

But if you are, it’s still a better finish than manual sanding… so in the end, i guess, even if you are painting.

We all know painting is easy… preping for painting is hard, and wheere all the quality is.


#7

Common household baking soda is a good grit. Cheap and nontoxic. You already have it in your kitchen.

Resin dust is toxic. So wear appropriate protection.

Here’s one inexpensive model among many (click here).