MPCNC: Pen Holder Crunch

A few tweaks to the Customizable MPCNC Mount for Round Tools produces a Sakura Micron pen holder:

MPCNC - Sakura Pen Holder - Slic3r preview — MPCNC – Sakura Pen Holder – Slic3r preview

The pen body seats atop the holder, with its narrower snout inside the clamp, giving positive control of the point position:

MPCNC - Sakura in pen adapter — MPCNC – Sakura in pen adapter

Unfortunately, should one forget to zero the pen tip to the paper surface before starting a plot, Bad Things happen to good tips:

MPCNC - Sakura pen - crushed tip — MPCNC – Sakura pen – crushed tip

The holder really needs at least a few millimeters of compliance, as a fiber-tip pen makes a fairly delicate tool not intended for applying much force at all to anything.

But the holder might make a Z axis probe …

Comments

5 responses to “MPCNC: Pen Holder Crunch”

2018-01-10

Brent

Make a parallelogram living hinge :-)
1. 2018-01-11
  
  Ed
  
  Exactly like the original pen mount, indeed!
2018-01-12

MPCNC: Z Height Probe vs. Tempered Glass Sheet | The Smell of Molten Projects in the Morning

[…] however, there’s a 0.6 mm difference from peak to valley, which would be enough to mess up a rigidly held pen tip pretty badly if you assumed the glass was perfectly flat and precisely […]
2018-02-10

Sakura Pen Nib | The Smell of Molten Projects in the Morning

[…] by Erik’s suggestion to file the end of a smashed Sakura pen, I filed a notch around the metal snout, snapped it off, and pulled on the […]
2018-02-20

MPCNC – Autolevel Probe, Collet Edition | The Smell of Molten Projects in the Morning

[…] putting a Z-axis height probe in a rigid pen holder worked well enough, it’d be handy to have a probe with a stud suitable for clamping in the […]