Fieldsports 155 Posted April 9, 2014 Report Share Posted April 9, 2014 Hello.I have began a relatively easy to do project to make a Pigeon Magnet.I arrived at the idea of using a 13.2v cordless drill that works quite happily off a 12v battery.I have mounted it on a light cheap camera tripod centrally, made a yoke that simply fits in the chuck to fit my arms and cradle toand it works great.I have ran the cable through the center pole on the tripod to keep it tidy.Once its painted up camo I think I will be more than happy.It is light and because the tripod is telescopic in all ways it makes it really really compact.I think a drill will work well as they are made to work under load for long periods of time although this device will never be under load.My dilemma.....I have tried various potentiometer controls that simply either do not work or burn out.I even tried a house dimmer switch that did not work either.Once I work out how to slow this down ( really nice and slow ) I think I will be more than happy with this.I can reduce the speed by placing inline bulbs which I did to see how it would operate slow...but bulbs are not a good Idea as a permanent answer to my speed problem.Any Ideas what I can place in-line to reduce the speed ?I know there is magnet machine speed devices on the bay but I do not know if they will work with the drill motor as they normally slow 12v wiper motors.Here are some very early photos to give you an idea to what I am doing.I will post some other pics or a short vid showing it working once I sort the speed issue out. 1 Quote Link to post Share on other sites
Fieldsports 155 Posted April 9, 2014 Author Report Share Posted April 9, 2014 Just to answer a couple of obvious questions....I am not sure of the current draw BUTI had another drill the same basically and used inline bulbs on a test bench in the shed to slow it down.(Inline car bulbs x2 to slow the motor down so that the bulbs reduced the current.)I wired it up going slow with a 12v 7.5ah alarm battery connected and went out to work.4 hours later it was still turning and I disconnected it after that.That was a simple test to see if these drill motors would be any good with NO load and running very very slow.At its normal drill speed I think it would of reached no where near the time cycle.I think a wiper motor running at low speed like on the normal magnets that's for sale would of drained the battery in that time.( unless I am wrong ) I am no electronics expert by far, I work on trial and error to see if stuff works.I tried it in the garden with my mates sillosock decoys and it never attempted to go off balance.I will run my spare drill motor tomorrow in the shed and leave it all day and see how it goes constantly going until the alarm battery goes flat.They are not made to constantly run but my thinking was they are also made to take some stick.Drilling masonry, stone and metal where the motor is under load ( vast load )I will be running it with no load and hopefully a eighth to a tenth of the speed.Fingers crossed I am right...If I am wrong then I have a big green wheelie bin that this will fit into...LOLI still have hope but please tell me as like I said I am no electronics expert...more of a try that and see what happens expert.I only want to slow it down with a small compact a simple device that I can build into a case that looks half tidy.Any Ideas ?Thanks Quote Link to post Share on other sites
Tiercel 6,986 Posted April 10, 2014 Report Share Posted April 10, 2014 Have you thought about the drill trigger mechanism as that varies the speed of the drill. If it was mounted with a screw above it you could turn the screw to vary the speed. Just a thought. TC Quote Link to post Share on other sites
Flipper_Al 1,012 Posted April 10, 2014 Report Share Posted April 10, 2014 To reduce the speed you will need an variable resistor, something like ebay item number 231115311296 Quote Link to post Share on other sites
Fieldsports 155 Posted April 10, 2014 Author Report Share Posted April 10, 2014 Have you thought about the drill trigger mechanism as that varies the speed of the drill. If it was mounted with a screw above it you could turn the screw to vary the speed. Just a thought. TC I have been playing around with a drill trigger but it was very sensitive, I will give a little device I found a try It is a 12V-40V 10A Pulse Width Modulator PWM DC Motor Speed Control Switch 13KHz Like the one in the picture ( Trial and error ) Quote Link to post Share on other sites
gonetoearth 5,144 Posted April 10, 2014 Report Share Posted April 10, 2014 Ive got a box of motors they were for them motorised scooters the kids all had. I was going to have a go a a magnet. Might do now looking at that Quote Link to post Share on other sites
Fieldsports 155 Posted April 10, 2014 Author Report Share Posted April 10, 2014 Ive got a box of motors they were for them motorised scooters the kids all had. I was going to have a go a a magnet. Might do now looking at that Why not mate ? Have a go if it costs you nothing have a try ! Thanks 1 Quote Link to post Share on other sites
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