Lifting device for manhole covers

The tool consists of a handle and a replaceable hook. The hook is attached to the handle with two M5x40 Allen screws. The recommended material for the handle is PETG; for the hook, it is PC.

Print parameters for the handle: PETG or PC, 0.2 mm balanced 0.4 mm nozzle, 6 perimeter layers, 7 solid layers, 7 base layers, 25% infill.

Print parameters for the hook: PC, 0.2 mm balanced 0.4 mm nozzle, 10 perimeter layers, 12 solid layers, 12 base layers, infill 25% (100% in the area of the hook).

Alternatively, the hook can also be made from PETG.

The best way to lift the manhole cover is to use 2 hooks.

SAFETY NOTICE: I have already used this hook several times to lift a manhole cover out of its seat. Use of this tool is at your own risk. The stability of the lifting device depends heavily on the quality of the filament and the print. You should expect the lifting device to break at some point. Wearing personal protective equipment such as safety shoes and work gloves is recommended. After repeated use or if the hook shows visible damage, it should be replaced.

Translated with DeepL.com (free version)