Personal project

Lathe: targeted modernisation of existing technology

The starting point was my own existing lathe. Rather than replacing it, I retrofitted one specific aspect: reading the position.

Measure manually and reconstruct in CAD

The conversion dates from before I owned a 3D scanner. I measured the existing geometry manually and reconstructed it in CAD.

My lathe with a digital workstation. — Laptop and chair forming a workstation at my lathe.

CAD-Arbeitsplatz mit Baugruppenmodell, Handskizze und Fachbuch. — Design workstation with a CAD model, hand sketch and reference book.

Design of the complete assembly

I brought together the complete assembly with the linear encoders, digital readout and mount in CAD. The illustration shows the design.

CAD-Gesamtaufbau der Drehmaschine mit Maßstäben, Digitalanzeige und Halter. — CAD design of the complete assembly with linear encoders, digital readout and mount.

Manufacture and coat the mount

I welded the mount and then powder-coated it.

Geschweißtes Rechteckprofil auf einem Schweißtisch. — Profile mount with a weld seam before coating.

Beschichtetes Profilbauteil des Halters, an einem Draht aufgehängt. — Mount after powder coating.

Implementation

I equipped the machine with glass scales and a digital readout.

Glass scales mounted on the axes
Digital readout displays the position directly at the workstation

Installing the glass scale on the lathe.

Technical context

Without the retrofit, position is read from the scales on the handwheels.

What the retrofit provides

Glass scales measure slide movement directly at the axis
The readout displays position numerically, eliminating the need to count handwheel revolutions
Actual slide travel is measured independently of the spindle drive

Limitations

Mechanical backlash is not eliminated
The digital readout does not control movement; it displays the measured position
The machine remains conventionally operated

I apply this principle to companies: not all existing technology needs replacing. A targeted retrofit at the point where the process actually benefits is often sufficient.

Turning: cross slide and tool holder on my lathe.

Put a targeted retrofit in context

Installation space, display accessibility and operation determine how an addition fits the workstation. Mechanical condition needs separate consideration: a digital readout does not remove backlash or replace repair.

This retrofit of my own machine illustrates the decision: which targeted addition supports the existing workflow, and where would a different measure be needed?

Workstation organisation

A usable workstation also requires tools and accessories to have a fixed place. I made printed inserts for the drawers at the machine for this purpose.