by Chris Anjel | Oct 13, 2026 | MJF & SLS Operations
The SLS laser window sits between the laser and the powder bed, and any film on it weakens the beam. On the Formlabs forum, a production shop with a Fuse 1+ noticed softer features at about 500 hours. At 750+ hours, a “rash” appeared across every part in...
by Chris Anjel | Oct 13, 2026 | MJF & SLS Operations
SLS edge flashing is the rough, burr-like lip that sometimes forms along the edges of nylon parts. On the Formlabs community forum, an operator who had run Nylon 12 GF on a Fuse for over a year switched to Nylon 12 and found “major, unfinished looking...
by Chris Anjel | Oct 12, 2026 | MJF & SLS Operations
SLS cooldown is dead time every operator wants to shorten. On the Formlabs community forum, a new Fuse 1 owner asked exactly that: the manual warns that skipping the cooling time causes distortion and poorer material properties, but they wanted to pull a job early....
by Chris Anjel | Oct 12, 2026 | MJF & SLS Operations
SLS material changeover sounds simple until you do it. In an r/AdditiveManufacturing thread where a shop asked for opinions on buying SLS, one operator was blunt: switching materials “is possible. Not practical.” They said cleaning the printer and sift...
by Chris Anjel | Oct 12, 2026 | MJF & SLS Operations
MJF humidity is an easy variable to overlook until parts start changing with the seasons. In an r/AdditiveManufacturing thread comparing MJF and SLS, an operator who has run both said MJF is more sensitive to environmental humidity on the older machines, and that...
by Chris Anjel | Oct 12, 2026 | MJF & SLS Operations
MJF threads are a frequent design question for parts that need fasteners. In an r/3Dprinting thread, a designer preparing parts for HP MJF in PA12 asked whether to model an M6 thread on a 4.8 mm tap hole like in metal, or make the hole larger. The replies covered the...
