Here is a list of all the postings Roger Harvey has made in our forums. Click on a thread name to jump to the thread.
|Thread: EARTH LEAKAGE|
Every so often when I switch of my shaper, via the No-volt push button starter, the earth leakage trips. Today in addition to the trip in the workshop the one in the house goes off as well. Any suggestions?
|Thread: DIAMIND DISC|
I seem to recall an article refering to the use of a cheap (Aldi I think) diamond disc, intended for use on an angle grinder, being used on a double ended grinder for tool sharpening. Does anyone know in which issue this apopeared?
|Thread: SHAPER ACCESSORIES|
Is there a design available anywhere for a hacksaw attachment to a shaper?
|Thread: M & W DR961 Micrometer|
Can anyone help?
I have a Moore and Wright DR961 0 –
This is a direct reading mechanical as opposed to electronic mechanism. It reads to
This is a favourite micrometer of mine due to the direct reading so I was upset when it fell out of my overall coat pocket when I picked up the coat to put it on. The micrometer fell onto a concrete floor with the result that the thimble sprung off the knurled operating knob. After a lot of attempts I have managed to relocate the thimble back in the correct location. The direct reading figures and graduations are correctly located within the transparent window in the thimble. Unfortunately when the thimble with the attached spindle is screwed back into the body of the micrometer and the thimble located at either the “
I have contacted Bowers Group who have Moore and Wright as one of their companies. A Mr Alex Glover Repairs & Calibration Manager (in-house
If anyone on the forum can help I would be extremely grateful
|Thread: PIDDINGTON TOOLHOLDER|
Many thanks Ady1 the photographs of the Model Engineer pages is exactly what I have been looking for.
Has anyone got the articles from Model Engineer by David Piddington describing making his extended toolholder for the Myford Dickson toolpost?
Back in Issue No. 147, Mike Crossfield wrote an article describing a low cost rev-counter. This used a disk with 60 slots to generate 60 pulses per revolution of the spindle.
Is there an electronic device, or a circuit using such a device, that would amplify/multiply the pulses generated by one similar opto switch once per revolution by 60 times. i.e one pulse per revolution increased to 60.
Back in issue No. 147 of MEW Mike Crossfield wrote an article describing a low cost rev-counter. He used a discs with 60 slots (or the 60 tooth Myford Super 7 bull wheel) to generate 60 pulses per revolution which directly read off as a frequency. Is there a device or a circuit incorporating such a device to allow one pick up ber revolution to be amplified exactly 60 times?
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