[modeleng] Where are you all?
- From: "Shep" <shep.28@xxxxxxxxxxxx>
- To: "Modeleng" <modeleng@xxxxxxxxxxxxx>
- Date: Wed, 17 Sep 2008 11:56:57 +0100
Hello everyone.
Where are you all - on holiday - or beavering away in the workshop? There
have been very few messages this month. Please send us some chat.
I have been slowly progressing with the construction of my little lathe -
finished the leadscrew and the clasp-nut mechanism. I am now rigging up a car
wiper motor at the tailstock end of the lathe, to drive the leadscrew via a
belt. The idea is to be able to vary the speed of the leadscrew, whilst
actually turning. I am using a 12V DC battery charger as a power source,
but found it difficult and expensive to locate a suitable robust speed control
- eg a wire-bound rheostat. I then attacked the problem in a different way,
and interposed a mains lamp dimmer which I had in stock, between the mains
power source and the battery charger. This works a treat, and gives a smooth
variable-speed drive. Problem solved at no cost!
Next problem: the geared screw-cutting mechanism - a tight design on a lathe
with a 2" centre height!
Cheers! from Hubert in autumnal St Albans.
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- [modeleng] Re: Where are you all?
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- [modeleng] Dimmers, motors, blisters, resistors.
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- [modeleng] Re: Where are you all?
- From: Dennis Rayner
- [modeleng] Re: Where are you all?
- From: Dave Beaman
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