Hello all!
I am new to this community and I appreciate the advice that you may have for me! I have little experience with electronics but have plenty of experience with tinkering and building things.
I have a friend who has a foredom motor that is used with a massager. (foredom massager)
They need to use it where there is no power. Currently they have a battery hookup but the unit is too heavy plus the heavy battery that has a AC outlet for the motor.
I figured i could make help her out and make her a cordless unit that uses a dewalt or milwaukee battery etc setup to make it easier for her travel.
My idea so far is to do the following setup but need advice.
Battery (LION) > Adapter with fuse> Voltage disconnect (to not over drain battery) > DC speed controller (she adjusts spped as needed) > a quiet! motor
What motor can I get that is super quiet?
This is where i really need help, selecting a motor. This setup that she uses is for large animals in rehab situations hence the cordless part. We tested a cordless dental tool for horses that used makita batteries and it made such a loud noise that she said it would spook the animals and she would need hers to be quiet. Large animals are sensitive to frequency and chatter from gears. We can spend some money like 100-200 range for the motor vs the cheap amazon stuff but need help picking out a super quiet motor that will do the job.
we'll have to have an adapter made to connect to the flex cable unless there is a motor with a 5/16 diameter shaft with a flat edge. (that is how the flex shaft connects currently) - here is a diagram of a foredom motor breakdown if needed - parts diagram
Is it better to have a 12V or 20V battery?
I have dewalt batteries as I do construction work so I have them to test with but I also have milwaukee 12V units. They sell a 12v power supply from milwaukee - power source - that may make it easier? but the 12v batteries might not last long?
How is the quality of amazon parts like voltage disconnect and dc speed controller?
If i pickout some compionents from amazon i feel like they will burn out pretty quickly. Would rather spend 20 vs 5 if it means it will last.
Other info I have figured out.
Current motor from foredom is 400-4400 RPM, hard to decipher which model they use for the massager but the other units are 1/6 HP and 1/3HP.
Online calculator shows 0.53Nm if i did a 1/3Hp at 4400
and 24Nm at 100 rpm.
For her massager setup the torque needed would seem to be low for her needs however the motor they make is for carving tools etc that require alot of torque. This is a soft pad that runs along muscles. There are times that it is pushed lightly into the muscle but from what she showed me it is very light touch 99% of the time.
I appreciate any help and advice you guys may be able to give me on this project.
Thanks!
Jon
I am new to this community and I appreciate the advice that you may have for me! I have little experience with electronics but have plenty of experience with tinkering and building things.
I have a friend who has a foredom motor that is used with a massager. (foredom massager)
They need to use it where there is no power. Currently they have a battery hookup but the unit is too heavy plus the heavy battery that has a AC outlet for the motor.
I figured i could make help her out and make her a cordless unit that uses a dewalt or milwaukee battery etc setup to make it easier for her travel.
My idea so far is to do the following setup but need advice.
Battery (LION) > Adapter with fuse> Voltage disconnect (to not over drain battery) > DC speed controller (she adjusts spped as needed) > a quiet! motor
What motor can I get that is super quiet?
This is where i really need help, selecting a motor. This setup that she uses is for large animals in rehab situations hence the cordless part. We tested a cordless dental tool for horses that used makita batteries and it made such a loud noise that she said it would spook the animals and she would need hers to be quiet. Large animals are sensitive to frequency and chatter from gears. We can spend some money like 100-200 range for the motor vs the cheap amazon stuff but need help picking out a super quiet motor that will do the job.
we'll have to have an adapter made to connect to the flex cable unless there is a motor with a 5/16 diameter shaft with a flat edge. (that is how the flex shaft connects currently) - here is a diagram of a foredom motor breakdown if needed - parts diagram
Is it better to have a 12V or 20V battery?
I have dewalt batteries as I do construction work so I have them to test with but I also have milwaukee 12V units. They sell a 12v power supply from milwaukee - power source - that may make it easier? but the 12v batteries might not last long?
How is the quality of amazon parts like voltage disconnect and dc speed controller?
If i pickout some compionents from amazon i feel like they will burn out pretty quickly. Would rather spend 20 vs 5 if it means it will last.
Other info I have figured out.
Current motor from foredom is 400-4400 RPM, hard to decipher which model they use for the massager but the other units are 1/6 HP and 1/3HP.
Online calculator shows 0.53Nm if i did a 1/3Hp at 4400
and 24Nm at 100 rpm.
For her massager setup the torque needed would seem to be low for her needs however the motor they make is for carving tools etc that require alot of torque. This is a soft pad that runs along muscles. There are times that it is pushed lightly into the muscle but from what she showed me it is very light touch 99% of the time.
I appreciate any help and advice you guys may be able to give me on this project.
Thanks!
Jon