Espresso PF scale plate
thingiverse
Update 12/27/2016: I've created a version for the Acaia Lunar scale. A frequent issue with espresso portafilters is that they don't fit well on most 0.1g or 0.01g kitchen scales. The scale plates are slightly too small. Place the plate atop your scale and the PF atop the plate. The riser on one end of the plate helps keep the basket end of the PF level. With a spouted PF, place the handle in the notch on the riser and the spouts on the non-riser end. With a bottomless PF, place the basket end on the riser and the handle on the non-riser end. You can simply print the plate and it will sit atop your scale. Alternatively, if you have a 500g scale like this one, https://smile.amazon.com/gp/product/B00QFCG5ZQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1, then you can print out the frame and glue it to the underside of the plate. The two combined will then sit atop your scale without moving around.
With this file you will be able to print Espresso PF scale plate with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Espresso PF scale plate.