Hey all,
I have a fleur-de-lis to be printed for a client. It has some surface detail (pitting namely) that I don’t want the support point remnants to interfere with.
I’ve printed it once using the default 1.00 and the remaining nubs are fairly prominent. While I know I can go in and tool some detail back after my eXacto and sanding work, I was wondering if I could just reduce the point size to reduce the severity of the necessary post work.
Thank you! I would appreciate any advice.
I usually try to make the point size as small as I can without getting a warning. I think the smallest did was .4 and it made getting the parts off the supports a breeze. I would give it a shot with the smallest size and see how it works for you. trial and error my friend.
Chris
Thanks Chris. I totally hear you on trial and error. Juggling that however with time and material costs makes me sweat.
But yeah, as my father would often say, NASA wouldn’t have gotten to the moon without blowing up a bunch of rockets first. 
I’ve had great success with the .4 point size with the clear resin. Never had or tried the Grey so I really can’t help on that one. What size can you go down to before it gives you a warning?
Chris
The warning indicator hits at 0.35.
0.40 sounds like a good place to start.
I use .35 all the time with no issues. I also use .75-.85 for the point spread not the 1.00 as it defaults to.
Let us know how you make out.
Chris
It’s going to be a function of how much force the peel puts on that particular contact point. My guess would be that if you had a couple of beefy contacts at each minima, then you could go quite small with the others.
What exactly is a, minima?
You can mix support point sizes. So for instance, you can use ‘structural’ heavy points in places, say 0.5 or 0.6, where they can be easily cleaned off and 0.3 for details and to pick up small minima.
Just my two cents - I exclusively print with the smallest 0.3 point size, BUT I dial the amount generated up to 120% (125% for larger prints) to compensate. I have not had this formula fail unless I fiddle around with manual supports because I tend to go too sparse in placing them.
A ‘minima’ is a section geometry in a slice that is unconnected to any other supported geometry and has no supports itself. For example, a torus oriented vertically: the geometry in the slice containing the bottom of the O is a minima if it doesn’t have a support connected to it.
Ah! Thank you. I felt a bit stupid asking, but I swear a Google search (oddly enough) came up with nothing.
Sorry, minima is sort of a slang we use a lot. It comes from “local minima”. In other words an area which is lower than the surrounding area. They’re also called islands. That’s because as you move the slicer up through the model, you’ll see the minimas appear as separate islands and then grow out to join each other. That shows why they have to be supported well. In those first few layers, they’ll be created independently, and you can’t allow them to move until they’ve joined up, or you’ll get artifacts.
Hey no problem. Thank you very much for the explanation. Ah-ha moment on this end. My fleur is minima central.
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