3D prints destined for presentation want easy surfaces, and that often means sanding. [Uncle Jessy] got here throughout an thought he determined to check out for himself: spraying Bondo spot putty onto a 3D print. Bondo spot putty comes from a tube, cures rapidly, and sands easily. It’s generally used to cover defects and provides 3D prints an awesome end. May spraying liquified Bondo putty onto a 3D print save time, or act as a cheat code for hiding layer strains? [Uncle Jessy] determined to search out out.
Step one is to show the distinctive crimson putty into one thing that may be sprayed by an inexpensive, ten greenback airbrush. That half was as straightforward as squeezing putty right into a cup and mixing in acetone in that-looks-about-right proportions. A little bit check spray confirmed the whole lot working as anticipated, so [Uncle Jessy] used an iron man masks (easy surfaces on the surface, textured inside) for a trial run.
Spraying the liquified Bondo putty appears about as straightforward as spraying paint. The distinctive crimson makes it straightforward to see protection, and it cures very quickly. It’s tremendous straightforward to rapidly give an object an excellent coating — even in textured and uneven spots — which is a bonus all by itself. To get a really easy floor one nonetheless must do some sanding, however the utility itself appears tremendous straightforward.
Is it price doing? [Uncle Jessy] says it relies upon. To start with, aerosolizing Bondo requires consideration to be paid to security. There’s additionally a good bit of setup concerned (and a little bit of mess) so it won’t be definitely worth the problem for small items, however for bigger objects it looks like an enormous time saver. It actually appears to cowl layer strains properly, however one continues to be left with a Bondo-coated object in the long run which may require extra sanding, so it’s not essentially a cheat code for a completed product.
If you happen to suppose the process may be helpful, try the video (embedded under) for a walkthrough. Simply bear in mind to do it in a well-ventilated space and put on acceptable PPE.
An alternative choice to making use of Bondo is brush utility of UV resin, however we’ve additionally seen attention-grabbing outcomes from non-planar ironing.
