AM8 Large Print Volume 220x320x290 (Enlarged Bed) by thaug29

Last crawled date: 3 years ago

The links below for the 200x300 bed is no longer available, I have found replacements at Gulfcoast Robotics https://gulfcoast-robotics.com
This is a simple way to enlarge your print volume if you already have the AM8 built. This will increase your Y-Axis to 300mm and Z-Axis up to 300mm depending on your hotendand carriage design. There's only two parts to print and a few parts to buy. You will need to buy longer Y-Axis rods, longer Z-Axis extrusion, larger sub plate(H-Plate), larger bed heater and larger bed. Here is a list of the parts that I bought. You will need to print four bearing block spacers and one Y-Axis belt holder.
https://www.amazon.com/gp/product/B0045DWA9C/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
https://gulfcoast-robotics.com/products/300x200mm-aluminum-heated-bed-build-plate-for-reprap-3d-printer-prusa-i3-full-kit
https://gulfcoast-robotics.com/products/anodized-aluminum-y-carriage-plate-xl-300x200-for-upgrade-reprap-3d-printer-prusa-i3
https://gulfcoast-robotics.com/products/y-carriage-plate-xl-300x200-kit-with-4-x-sc8uu-for-reprap-3d-printer-prusa-i3-upgrade
2040x480mm extrusion 2 pieceshttps://us.misumi-ec.com/vona2/detail/110302684350/?Inch=0
https://www.amazon.com/gp/product/B00UR0N370/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00F2IQNX8/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
What you need to do is remove the existing 440mm Z-Axis extrusions and put them in place of the existing Y-Axis 340mm extrusion. Then add the 2 new 480mm extrusions to the Z-Axis. Add the 2 new 495mm 8mm rods to the Y-Axis. Add the new subplate, heater and bed. I would not use the wire that comes with the bed it gets to hot, replace it with good quality silicon wire at least 14ga. Don't forget you will have to change you bed size in your slicer software and in Skynet/Marlin config file.
NOTE: To get the most amount of Z-Axis travel you will also have to do the 2020 X=Axis conversion and use two short bearing mounts. See photo of my printer above.
https://www.thingiverse.com/thing:2439194