The decal works fine in Preview mode.
But starts floating with accurate mode. Any suggestions?
All decals float off the surface in ray traced modes (fast or accurate). It's typically in the neighborhood of a .001 mm (1 micron) or less so often not very noticeable.
Your camera angle, and obviously the size of your part, will dictate how visible this effect is. I suspect that part is rather small... This old issue It has been chronicled in a few other forum posts on the forum here...
It's fixed in 2018 sp1.0
sp1.0 release note snippet... We referred to it at the "self-shadowing effect (ie decal actually casts a shadow on the surface below b/c it is actually offset from the geometry below it).
If you're stuck with 2017 for now, you could try scaling the object bigger, and then maybe some camera trickery?
What Matt? That's not a visualization of your amazing new holographic printing method for extra coolness for your product?
I haven't seen that one before. Did you try the multipart checkbox for a possible workaround?
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