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Gold Prospecting
Do It Yourself (DIY) Projects
Trommel build
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<blockquote data-quote="Ronk" data-source="post: 160332" data-attributes="member: 3914"><p>hi i would say definitely dont use starter motor </p><p></p><p>but there are plenty of other types of motors you will see 12 volt motors on ebay all the time and get a speed controller they about $6 for 20 amp rated </p><p></p><p>i built one years ago with a 12 gallon drum and wiper motor and it worked fine but i think bigger would be better i used pushbike chain and front cog from a bike and built the cog for the wiper motor about 1 inch dia</p><p></p><p>i have a post showing my old trommel on this site look up my posts if interested</p><p></p><p>oh by the way the reason starter motors are no good is they are series wound and will rev out to buggery and they only have bronze bearings so will not have bearings for long with continuous use.</p><p></p><p>you can also use old car generators but you have to mod the windings and they work well, I have used them to drive a 3 wheel bike and as an outboard for a dingy to get out to my boat on the mooring years ago, sure beats rowing , but so many cheap electric motors on ebay these days </p><p></p><p>cheers Ronk</p></blockquote><p></p>
[QUOTE="Ronk, post: 160332, member: 3914"] hi i would say definitely dont use starter motor but there are plenty of other types of motors you will see 12 volt motors on ebay all the time and get a speed controller they about $6 for 20 amp rated i built one years ago with a 12 gallon drum and wiper motor and it worked fine but i think bigger would be better i used pushbike chain and front cog from a bike and built the cog for the wiper motor about 1 inch dia i have a post showing my old trommel on this site look up my posts if interested oh by the way the reason starter motors are no good is they are series wound and will rev out to buggery and they only have bronze bearings so will not have bearings for long with continuous use. you can also use old car generators but you have to mod the windings and they work well, I have used them to drive a 3 wheel bike and as an outboard for a dingy to get out to my boat on the mooring years ago, sure beats rowing , but so many cheap electric motors on ebay these days cheers Ronk [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Trommel build
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