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Come bathe with me, and be my love..

(With apologies to Chistopher Marlowe)

Now the bath in my new home in Portugal had a concrete relationship…

Solid support?

Further, it would have been difficult for a medium-sized Portuguese child to get wet in it, so I decided on a replacement, the installation of which would take place on completion of pipework being installed for the [...]

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Using a T4 Router as a High-Speed Spindle on the SIEG X1L Milling Machine

The TREND T4 variable-speed (11-32,500 rpm) router provides an affordable alternative to high-cost ER11, ER16 and ER20 High-speed spindles.

As part of my project to convert my SIEG Milling machine to CNC, I wanted to see for myself how easy it would be to fit a high-speed spindle to the Mill at reasonable cost. I have [...]

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PCB Milling Diary – April 12th 2012

Updated @ 16:28 13th April 2012
(see supplemental)

I’m playing catch-up here. The contents of this post refer to work over two days old, delay in writing it up is due to other, more pressing matters.
The good news is that after using LineGrinder to generate the G-Code from my little PCB, the two mysteriously-missing areas on the [...]

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PCB Milling Diary – April 8th 2012

A great deal of what we see on the Web, project-wise, is the ‘finished’ product. Every questionable decision has been ‘revisioned’, and what warts remain are carefully hidden, or presented as ‘features’. Yeah, I know this is a pretty cynical view, but unfortunately, nearer the truth, than even I would like to admit.
One of the [...]

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Converting a Proxxon MF70 Milling Machine To CNC – 4

A Simple Thumb Drive G-Code Delivery System

Updated with File System Source-Code & example of logging 15th April 2012

This post in one in a series. Other posts you may be interested in are as follows:

Converting a Proxxon MF70 Milling Machine To CNC – 1: Introduction.
Converting a Proxxon MF70 Milling Machine To CNC – 2: The User [...]

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Converting a Proxxon MF70 Milling Machine To CNC – 3

Controlling the MF70 Spindle Speed

Updated 28th April 2012 with Eagle Schematic and Printed Circuit Board Design.

This post in one in a series. Other posts you may be interested in are as follows:

Converting a Proxxon MF70 Milling Machine To CNC – 1: Introduction.
Converting a Proxxon MF70 Milling Machine To CNC – 2: The User Interface.
Converting a [...]

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Converting a Proxxon MF70 Milling Machine To CNC – 2

The User Interface

This post in one in a series. Other posts you may be interested in are as follows:

Converting a Proxxon MF70 Milling Machine To CNC – 1: Introduction.
Converting a Proxxon MF70 Milling Machine To CNC – 3: Controlling the MF70 Spindle Speed.
Converting a Proxxon MF70 Milling Machine To CNC – 4: A Simple Thumb [...]

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Converting a Proxxon MF70 Milling Machine To CNC – 1

Overview

This post in one in a series. Other posts you may be interested in are as follows:

Converting a Proxxon MF70 Milling Machine To CNC – 2: The User Interface.
Converting a Proxxon MF70 Milling Machine To CNC – 3: Controlling the MF70 Spindle Speed.
Converting a Proxxon MF70 Milling Machine To CNC – 4: A Simple Thumb [...]

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Treslie – A 3-phase speaker system for Leslie emulation

This post describes the design and construction of a 3-phase loudspeaker intended for Leslie Speaker emulation. The unit is intended to be driven by a 3-channel audio amplifier The Brute, which in turn is controlled by LEMS, a micro-controller based control system, the construction of which both are described in companion posts.

Final tests on [...]

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The Brute: A 3-channel Audio Amplifier For Leslie Speaker Emulation

This post describes the design and construction of a 3-channel, 30 watts per channel, audio amplifier. Although my amp incorporates two antique HY60 power modules, construction details are given for construction using the modern TDA2050A, capable of yielding 32 watts. The amplifier is intended to be used as a Leslie Speaker Emulation driver unit, delivering [...]

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