Recently bought my first Prusa i3 kit. After initial problems like frying my RAMPS and breaking some of the printed parts to assemble the thing (glued them back together) I finally got the thing working. Whenever I print anything that’s only a few layers thick no problems at all. In fact using the proper settings I managed to print stuff so thin it rivals paper. However whenever the object height goes up like the 20mm cubes here: https://goo.gl/photos/ipfsLzdiQ8ZkSF4dA I run into problems as you can see. I used temperatures in increments of 5 degrees from 220 to 265. Heat Bed is usually running at 100 but also tried to go as high as 120. I do not have an enclosure for the printer and not sure in this case it would change anything. I have absolutely no clue what causes the problem and what I can change to solve it. Any help very appreciated.
Normally bed temp for ABS is 110 and I wouldn’t increment the temperature as you go up the layers.
Start the print at 220 and keep that temperature or find the average temp by adding the 2 numbers in the temp range given and divide by 2 , then set that as the temp.
I have a solution:
Use this special ABS sheet. It is like “buildtac” but much cheaper and if you treat it nicely you can get more uses out of the same sheet.
How it works is that there is a layer of weaker ABS on a PCB sheet. The printed ABS filament bonds well to it, yet separates easily since the sheet’s ABS bond is weaker.
If you sit down and add up all the money and time wasted using tapes, sprays, and glues, it makes a lot more sense just to use a low cost sheet that will give you reliable results.
Want to try it out: buy it from here:
1 sheet: http://www.ebay.com.au/itm/191798568233?ssPageName=STRK:MESELX:IT&_trksi…
4 sheets: http://www.ebay.com.au/itm/191798569645?ssPageName=STRK:MESELX:IT&_trksi…
or contact for larger orders, custom sized sheets, etc: InventionFactory@debeers-education.com
