Reworked OB1.4 open beam printer

thingiverse

I made a major design adjustment for the 1515 profile to match the dimensions of the 2020 profile, and now everything is up and running smoothly. I'll be sharing any updates as I tweak and refine its performance. To accommodate a larger print area, I've increased the printer's internal frame dimensions from 360x500 to 400x600mm. With an intended height of up to 500mm, it's essential that we check all calculations and complete the main frame printing before starting any projects. Currently, the frame is still in progress, but the bed construction has been completed with a print area of 300x300mm, perfect for producing iPad Air cases instead of phone cases. The cost of materials was around £60 (approximate $80) from eBay UK: 5meters of 2020 profile for £39.60 ($50), 2 kg PLA filament at £21.58 ($27), and nuts, bolts, and other essential components. Most of the required parts were obtained at this cost, while I also used existing resources. Following several revisions, including modifying the X carriage, we've successfully made a temporary heated bed to perform preliminary tests until our 300mm model arrives. Print settings have been optimized: rafts and supports don't matter for now, resolution is set to 0.2, infill percentage is at 40%, and calibration checks with the 20mm cube were conducted. One challenge I've identified in my design involves shortening the 500mm uprights by approximately 50-75mm; otherwise, the overall frame would be less efficient.