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Mill/drill quil stop and postion measurement

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PekkaNF:
Got one of these popular drill/mill combo and quite like it.

Mill/drill quil stop and postion measurement

Installed DRO and that is definate improvement. However spindle stop is not tha great and spindle depth measurement is next to useless.

Mill/drill quil stop and postion measurement

Saw this video, a little different mill, but very similar spindle construction.
https://youtube.com/watch?v=4eY_8wCVGMg

Stop looks good and would be possible to make with only minimal changes. Good.

What about spindle postion measurement. I actually like the idea of local measurement display.

Any experience on this sort of scales:

https://www.machine-dro.co.uk/vertical-linear-digital-scale-150mm-6-inch.html

Or the type that has separate display.

I'm trying to find a model that has big and clear display.

philf:
Pekka,

ArcEuro have the scales with a separate display.

https://www.arceurotrade.co.uk/Catalogue/Measurement/Digital-Readouts-with-Dedicated-Remote-Display/Digital-Readout-Bars-with-Dedicated-Remote-Display

I use one for the z-axis on my mill. The only problem I found is that the display turns off after a short time of inactivity - but it does retain the position when turned back on again.

Joules:
Fit a backlight to the display, it only need be an LED to side light the display, but this makes a huge difference.

PekkaNF:
Good info thank you.

That automatic power save sounds annoying. Luckily value does not zero on power up - like it does on one cheap caliper I have.

PekkaNF:
Build "prototype" some time ago, hence only "busines ends" of the parts are finished and rest of them looks garden engineering.

And because the cover was off I added RPM-display, big red LED display, but reading update is slow and program appears to writen by 3 years old using Basic.

My approach is slighty different compared to Sefan's construction, the mechanical idea is very much similar and rod/stop is almost 1:1 same construction - even with epoxy and release wax.

Difrerence comes in that my mill is diferent and there was even less space at the front of the spindle, I needed to make parts smaller and snag off 2 mm from casting.

Instead of DTI I put cheap scale on the side, seems to work fine.

Pekka

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