DIY CNC Tool Setter ±0.02 mm (Werkzeuglängensensor)

Simple and precise DIY tool setter for a hobby CNC milling machine.
Copy paste following code to maker.js playground to create the sketch.
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var m = require('makerjs');
var $ = m.$;
this.units = 'mm';
var diameter = 36;
var switchCenterOffset = 3;
var sideWidth = 2.5;
var rodDiameter = 8.1;
$(new ToolSetter(diameter, rodDiameter, sideWidth))
.addTo(this, 'bottom')
.clone()
.moveRelative([diameter + 8, 0])
.addTo(this, 'top');
$(new m.models.Rectangle(6.5, 20))
.center()
.moveRelative([0, switchCenterOffset])
.addTo(this, 'switchTop');
$(new m.models.Rectangle(3.4, 19))
.center()
.moveRelative([0, switchCenterOffset])
.addTo(this, 'switchBottom');
function ToolSetter(diameter, rodDiameter, sideWidth) {
this.paths = {
outside: new m.paths.Circle([0, 0], diameter / 2),
inside: new m.paths.Circle([0, 0], diameter / 2 - sideWidth),
rod: new m.paths.Circle([0, 0], rodDiameter / 2)
};
}
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[@Bu5H84]

I found your channel via the Printer you being building it looks amazing, now i also want to see a more in depth video on you CNC

[@CasualCNC]

Noted. My DIY CNC is somewhat similar to Carbide 3D Nomad: Bed is moving on Y axis and head moving on X+Z, everything enclosed in a case of plywood + acrylic glass + doors. In the meantime I've got a very good stiffness and precision but I use it not that often recently.

[@phylippusvonhohenheim3232]

i love cnc please make more videos about

[@thanhnhanhuynhnguyen3652]

0.02 is plenty good for wood. Nice idea

[@JarppaGuru]

9:13 oh yes bit angled push

[@pytebyte]

well done

[@Aldebaran369]

Is that a limit switch!?

[@CasualCNC]

@@Aldebaran369 correct

[@JarppaGuru]

9:01 you can actually use just aluminium to replace that thing machine will stop when it hit it. more acurate than lever. and you know exact distance bcoz u know thickness of aluminium plate can you even measure that when it trigger lol

[@CasualCNC]

Sure aluminium plate is more precise. But: NO vs NC - bad things happen if you forget to ground the cutter when using aluminium plate.

[@cyberlizardcouk]

very pretty.

[@CasualCNC]

Thanks!

[@graveurgraveur2691]

Bravo!

[@CasualCNC]

Thanks!

[@3dkiwi920]

kress/amb spindle?

[@CasualCNC]

Sorotec SFM 800, which is an OEM version of Mafell, I believe.

[@RenatoYamamoto481]

coool

[@MrJohnakel]

why??? just stik that cable to a coin. push switches are not accurate enough in some cases. plus it eats up a lot oh z height.

[@CasualCNC]

1. Bit is not grounded on my router and I would have to connect cable to it every time. Forgetting to connect would result in damage.
2. NC is safer that NO for the same reason.
3. 0.02 mm is more than enough for my use cases and on my DIY CNC. Accuracy is also surprisingly constant.

[@MrJohnakel]

@@CasualCNC thanks for explaination.

[@JarppaGuru]

+-0.02 is not acurate. daily base doing part 0.013 +-0.0065 lol

[@herberthenri]

For wood? It's pretty damn good acctually.