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David Bingham	21/08/2011 01:22:59
6 forum posts	I have one of these. A nice machine. Bought second hand and was equipped with a wiper motor to provide X axis feed (required over voltage of around 25v to give decent travel rate). Tired of reaching up and round to operate the Z axis feed and column lock, I, crudely fitted a Daewou wiper motor and toothed belt drive from a food processor plus a simple lever at the front linked to the rear column lock. Hardly CNC, but this has saved me suffering " Miller''s elbow" from the awkward position of the top mounted Z axis handwheel and reaching to the rear mounted column lock. Cost was £5 for the motor from the local scrap yard (sorry, vehicle dismantler and re-cycler!) . My 25v + power supply is by 2 battery chargers connected in series (12V SIDE ONLY!!!) with a smoothing capacitor paralleled across the output. Speed is controlled by a lamp dimmer switch to supply the battery chargers. All very crude but I am very pleased with the arrangement.
Ian S C	21/08/2011 11:30:43
7468 forum posts 230 photos	I think my Rexon mill is a little larger tha yours, I use a lucas wiper motor to drive the bed. I have a 10 tooth sprocket fitted on an extention to the wormwheel shaft, and a 20 tooth sprocket to the lead screw. 18V from my work shop low voltage supply, and this seems adiquate. The thing that interested me was the use of a light dimmer, I tryed that but could not get satisfactory results, so I,v got a series of resistors operated by a rotary switch. Suits me, so I'm not complaining. Ian S C
David Bingham	22/08/2011 00:37:42
6 forum posts	The dimmer switch needs to be suitable for inductive loads and they can require a minimum load to work. Nonetheless you have come up with a solution that meets your requirements and that's all that matters. Its good to hear from someone else who recognises the capabilities of wiper motors in the workshop. I also built a wiper motor powered hacksaw from a feature in an early Model Engineer's Workshop - not very speedy but beats the drudgery of manual sawing - which I only do when absolutely necessary! Dave.
ady	22/08/2011 00:44:37
612 forum posts 50 photos	Cost was £5 for the motor from the local scrap yard They won't let us in to buy stuff any more where I'm at. 'elf and safety...
David Bingham	22/08/2011 00:55:58
6 forum posts	We'll never beat H & S - Too many cushy jobs and big profits for PPE etc. suppliers!!!
Michael Malleson	23/08/2011 09:25:28
62 forum posts 2 photos	Hi David. My milling machine is the same as yours. How about a short article in ME magazine on how you did your motorised Y-axis. Can you still use it manually ? Mike.
mick H	23/08/2011 12:06:08
795 forum posts 34 photos	I second the above post
David Bingham	24/08/2011 01:27:51
6 forum posts	Hi Mike and Mick. Just to clarify, My machine already came with its X - axis feed. I've added a drive to the down travel only ( have I got mixed up with my Z's and Y's ??). As I said, my arrangement is pretty crude - for manual downfeed I simply slip off the drive belt. If it is the downfeed which interest you, I could try to post a couple of photos, though this might not be for a couple of weeks. Dave
John Shepherd	24/08/2011 16:54:47
222 forum posts 7 photos	David Can yo tell me where the title for you thread comes from? The reason I ask is that I used to work with a Grayham Butcher and I wondered if it might be the same person. Regards John Shepherd
David Bingham	25/08/2011 00:23:30
6 forum posts	Hi John, I picked up the thread from Albums page 9. Unfortunately, he has not entered any personal details, so I don't know how you might contact him? Dave.
Graham Butcher	01/09/2011 14:39:03
21 forum posts 3 photos	John I have sent you a message Graham

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