Adjustable Pet Bottle Cutter

A new pet bottle cutter.

I created this bottle cutter by blending the features of other existing ones:

it uses 608zz bearings for cutting
the cutting height is linearly adjustable
I created a window to see (and also mark) where the height adjustment screw is located
the bearings are angled so that they are always tangent to the bottle (diameters about 70 mm)
the rod for holding the bottle is tilted to keep the side of the bottle vertical

Note: The photos are slightly different from the CAD because I changed some details, but the printed version was already fully functional, so I did not feel I should reprint it.

See in action: [https://youtu.be/vMySUB2HI7E](https://youtu.be/vMySUB2HI7E)

Post-Printing

Assembly

Assembly requires:

* 2 bearings 608zz (*) * 2 screws M8 x 60 mm or more * 1 M8 x 35 mm screw (approx.) (**) * 2 M3 x 20 mm screws or more * 6 M8 narrow washers * 7 M8 nuts * 3 3.5 mm x 35 mm wood screws for fastening * 1 6 mm wood rod, or a 6 mm threaded rod

(*) The bearings must be sìlimed on one face to remove the chamfer

(**) The screw should be slotted at the head for about 1 cm to pass the bottle lamoine through. N.B. The cut should be made in line with two edges of the screw

How I Designed This

The project was done in FreeCAD.

I have included the project file in case you want to improve it.

Category: 3D Printing

Descrição

Post-Printing

How I Designed This