The various build surfaces are good for an introduction to 3D printing, but I've found them to change considerably over time with wear. This results in a variable that prevents a consistent process. Quality is achieved by doing the same thing, the same way, every time. That's why I've consistently urged you to switch to a glass build plate, preferably borosilicate glass, with a very thin coating of glue stick and water. The water evaporates leaving a very thin layer of glue that provides a uniform and consistent build surface that's strong enough to prevent even ABS from warping and separating from the build surface. When the bed cools, the parts self release. There is no scraping or gouging that can not only damage a build surface but also knock the bed out of level. These are relatively delicate little CNC machines. Hacking and prying with a putty knife is not conducive to repeated success or machine longevity.
The first thing I do with a new 3D printer is preheat the bed to 110C and peel off the plastic build surface, leaving the adhesive on the aluminum build plate which I use to adhere a new glass build surface. There are also clips that can be 3D printed to secure a glass build surface to the bare aluminum built plate. On 7/30/20 7:40 AM, Gene Heskett wrote: > Greetings all; > > I gave up putting off sleep and with the last of 3 motor top plates 88% > done, went to bed around 2ish, knowing it would be done and cold by the > time I woke up, which it was. > > But the magnetic sheet used for a build surface was welded to the hot > plate pretty bad, and by the time I had gotten the putty knife under it > and pried it loose, and lifted free, both the bottom of the mag sheet > and the tan pad glued to the build plate were surface damaged. Has > anyone else encountered this? > > As time and use have gone by, part adhesion to the build surface has > improved to the point the brim has become permanently stuck, sometimes > coming off with the next part so that hasn't been a huge problem yet, > but is that how it works, making the whole build plate an assembly one > should keep on hand? > > Thanks. > > Cheers, Gene Heskett _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
