This is an upgrade to my previous Wire Roller:
https://social.thangs.com/m/15563

The upgrade consists in making the bearing blocks move symmetrically in regards to the central roller.

Wire Roller Reciprocating

This is a parametric 3d-printable take on the IMPOSSIBLE PENETRATION FINGER CHOPPER by CLARENCE MILLER.
Video of the trick in action: 
https://www.youtube.com/watch?v=AxXsPSuLupg

Finger Chopper

A simple wire roller fir wires up to 4mm in diameter

BOM:
2 x SG15 U groove bearings
2 x 6804/61804 20x32x7mm ball bearings
2 x M5x25 Socket Head Screws
4 x M5x10 Socket Head Screws
4 x M5 Lock nuts
1 x M5x125mm or more threaded rod
1 x 20x80mm or more smooth rod
2 x 3x85mm or more sooth rod

Wire Roller

Body

Base

Bearings

5972K279

5972K279(Mirror)

SG15U v5

Fasteners

91290A230

94645A102_HIGH-STRENGTH STEEL NYLON-INSERT LOCKNUT

91290A230(Mirror)

94645A102_HIGH-STRENGTH STEEL NYLON-INSERT LOCKNUT(Mirror)

91290A230(Mirror) (1)

94645A102_HIGH-STRENGTH STEEL NYLON-INSERT LOCKNUT(Mirror) (1)

91290A230(Mirror)(Mirror)

94645A102_HIGH-STRENGTH STEEL NYLON-INSERT LOCKNUT(Mirror)(Mirror)

91290A252

94645A102_HIGH-STRENGTH STEEL NYLON-INSERT LOCKNUT(Mirror) (2)

96505A113

98861A588

Driving Axle

Tensioner Bearing Block

Tensioner Bearing Block (1)

Guide Axles

A drill guide for performing perfectly straight holes or for threading true using with a cordless drill

Drill Guide

Base Plate

Insert - 4mm

Slider

10mm Rail

9338T52

Slider(Mirror) (1)

10mm Rail(Mirror) (1)

9338T52(Mirror) (1)

C12-ER11A-150L

Spindle Block

6201-C-2HRS 12x32x10

Block

Spindle Spacer

Collar

Connecting Plate

91290A242

91290A242(Mirror)

91290A242(Mirror) (1)

91290A242(Mirror)(Mirror)

91290A242(Mirror) (2)

91290A242(Mirror)(Mirror) (1)

91290A242(Mirror) (1)(Mirror)

91290A242(Mirror)(Mirror)(Mirror)

91290A242(Mirror) (3)

91290A242(Mirror)(Mirror) (2)

91290A242(Mirror) (1)(Mirror) (1)

91290A242(Mirror)(Mirror)(Mirror) (1)

91290A242(Mirror) (2)(Mirror)

91290A242(Mirror)(Mirror) (1)(Mirror)

91290A242(Mirror) (1)(Mirror)(Mirror)

91290A242(Mirror)(Mirror)(Mirror)(Mirror)

91290A113

90592A085_STEEL HEX NUT

90592A095_STEEL HEX NUT

Blocker Unit

Blocker

Blocker Cam

Blocker(Mirror)

A metric gage able to measure:
Bolts from 4-50mm in 2mm increments
Bolts from 5-100mm in 5mm increments
It also features nut recesses and bolt through holes from M2 to M12

Metric Bolt Gage.step

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Seedling

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Wire Roller Reciprocating

Finger Chopper

Wire Roller

Drill Guide

Metric Bolt Gage.step