Graham Butcher’s Warco Mill

This topic has 11 replies, 7 voices, and was last updated 1 September 2011 at 14:39 by Graham Butcher.

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21 August 2011 at 01:22 #73639
David Bingham
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@davidbingham70252
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.
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21 August 2011 at 01:22 #5622
David Bingham
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@davidbingham70252
21 August 2011 at 11:30 #73651
Ian S C
Participant
@iansc
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
22 August 2011 at 00:37 #73691
David Bingham
Participant
@davidbingham70252
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.
22 August 2011 at 00:44 #73692
ady
Participant
@ady
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…
22 August 2011 at 00:55 #73693
David Bingham
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@davidbingham70252
We’ll never beat H & S – Too many cushy jobs and big profits for PPE etc. suppliers!!!
23 August 2011 at 09:25 #73741
Michael Malleson
Participant
@michaelmalleson22793
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.
23 August 2011 at 12:06 #73750
michael howarth 1
Participant
@michaelhowarth1
I second the above post
24 August 2011 at 01:27 #73804
David Bingham
Participant
@davidbingham70252
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
24 August 2011 at 16:54 #73841
John Shepherd
Participant
@johnshepherd38883
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
25 August 2011 at 00:23 #73870
David Bingham
Participant
@davidbingham70252
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.
1 September 2011 at 14:39 #74312
Graham Butcher
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@grahambutcher80356
John

I have sent you a message

Graham
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