Thurman
Full Member
- Aug 27, 2014
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Fellow tinkerers,
I am reasonably handy and have a nice woodworking shop, an el-cheapo milling machine and metal lathe. Electrical knowledge, not so much.
In trying to design and build a 12v puffer drywasher, I find good guidance for plans and mechanical details. One of the best I have found is on Bill and Linda's Prospecting Page (Bill Fletcher?). Missing from the plans, however, is the recommended 12v motor, or specifications for a motor. I have tried contacting their site..but no response. Is it active?
The comments I find here are: "use a windshield wiper motor." Yet when I go to motor vendor pages, I am soon swimming in speeds, torque requirements, brushed or not, worm drives and gear motors. I read the tutorials and still come away confused.
What I think I know is that: I need a brushed gear motor that is sealed (dust) and with a working rpm of about 100, of the type (I forget the term) that can be speed controlled without wasting power (AZ Viper). Missing are my torque requirements. I suppose I could build the machine and measure the shaft torque required, figure in the mechanical advantages/disadvantages of the pulleys I will be using, and come to some reasonable conclusions. Maybe.
What would be better is any advice I could get from those of you who have been through this process. I am not looking for the lowest cost approach. I would rather buy a good quality new motor and speed controls from a reputable vendor. As we all know, the labor is the expensive part. My next step is to talk with motor suppliers, but I am not sure I know my requirements well enough to hear what they tell me. Any suggestions would be greatly appreciated.
Thurman
I am reasonably handy and have a nice woodworking shop, an el-cheapo milling machine and metal lathe. Electrical knowledge, not so much.
In trying to design and build a 12v puffer drywasher, I find good guidance for plans and mechanical details. One of the best I have found is on Bill and Linda's Prospecting Page (Bill Fletcher?). Missing from the plans, however, is the recommended 12v motor, or specifications for a motor. I have tried contacting their site..but no response. Is it active?
The comments I find here are: "use a windshield wiper motor." Yet when I go to motor vendor pages, I am soon swimming in speeds, torque requirements, brushed or not, worm drives and gear motors. I read the tutorials and still come away confused.
What I think I know is that: I need a brushed gear motor that is sealed (dust) and with a working rpm of about 100, of the type (I forget the term) that can be speed controlled without wasting power (AZ Viper). Missing are my torque requirements. I suppose I could build the machine and measure the shaft torque required, figure in the mechanical advantages/disadvantages of the pulleys I will be using, and come to some reasonable conclusions. Maybe.
What would be better is any advice I could get from those of you who have been through this process. I am not looking for the lowest cost approach. I would rather buy a good quality new motor and speed controls from a reputable vendor. As we all know, the labor is the expensive part. My next step is to talk with motor suppliers, but I am not sure I know my requirements well enough to hear what they tell me. Any suggestions would be greatly appreciated.
Thurman
