Here's a question, isn't the friction added to the system through the addition of the crankshaft causing the energy-usage/power-output to be worst than the energy-usage/power-output rate of a classic rotary electric engine?
@vxcriss In the rotary design of DC motors the magnetic field is always present at ALL positions of the motor's rotor where as these solenoid motors need flywheels to coast it through those positions of rotation that the solenoid is not moving the rod on the crankshaft. Rotary DC motors are therefore much more powerful torque wise and HP wise and the fact the since they increase in torque as more load is applied whereas these motors have fixed torque value.
It's a nice project. The engine is powered by two Ledex solenoids, 3/4" diameter and about 1.5" long. In this video, the power is supplied by a 9 volt, 300 ma DC power supply.
I picked them up on eBay a year or so ago. They show up there now and again. These are rated at 24 volts, but the microswitch is only rated at about 100 milliamps, so I run the motor on 9 volts.
Nice piece of craftsmanship. Did you build it yourself? I can not see how the switching and timing are done. I built my motor some 10yrs ago, mostly from old VCR parts
The switching is done with asingle pole, double throw micro switch driven by a cam behind the flywheel. You can see the wires twisted together coming up one side then bent90 degrees togo to the switch. Thx for the comments.
The solenoids were purchased from Ebay. All the rest I machined out of brass and steel using a mill and a lathe.
cffellows 2 years ago
Here's a question, isn't the friction added to the system through the addition of the crankshaft causing the energy-usage/power-output to be worst than the energy-usage/power-output rate of a classic rotary electric engine?
vxcriss 2 years ago
Yep, not a very powerful or efficient engine, but it sure is purty... Chuck
cffellows 2 years ago
@vxcriss In the rotary design of DC motors the magnetic field is always present at ALL positions of the motor's rotor where as these solenoid motors need flywheels to coast it through those positions of rotation that the solenoid is not moving the rod on the crankshaft. Rotary DC motors are therefore much more powerful torque wise and HP wise and the fact the since they increase in torque as more load is applied whereas these motors have fixed torque value.
EETechs 1 year ago
thats pretty good im working on a similar engine myself for science fair except im going to power an old x-mas train along the set of tracks
Gingeralerocks 3 years ago
did you get it to work?
budsiskos 3 years ago
I don't understand your question?
cffellows 3 years ago
oh, i meant this question for the comment underneath with the christmas train set
budsiskos 3 years ago
yea it was a little touchy though, im still messing with it in my spair time
Gingeralerocks 3 years ago
Comment removed
budsiskos 3 years ago
That thing is cool, I think this is what Im going to build next.
05cr125rider 4 years ago
It's a nice project. The engine is powered by two Ledex solenoids, 3/4" diameter and about 1.5" long. In this video, the power is supplied by a 9 volt, 300 ma DC power supply.
Chuck
cffellows 4 years ago
Thanks Chuck, Where did you get your solenoids from? Im having trouble finding some. The last one I got came out of an old 8track player haha
beachbum9998 4 years ago
I picked them up on eBay a year or so ago. They show up there now and again. These are rated at 24 volts, but the microswitch is only rated at about 100 milliamps, so I run the motor on 9 volts.
cffellows 4 years ago
awesom thanks for sharing it with us ,truly a marvel
nswiss1975 4 years ago
What if it destroys the world by spinning to fast?
kylexraine 4 years ago
Nice engine! Awesome.
StudioWiklund 4 years ago
I just see a dream of my childhood!(there had a plan in a diy book) thanks a lot beautiful work!
gptau 4 years ago
Very nice. Thanks for posting your video.
PlasmaStar9 5 years ago
Nice piece of craftsmanship. Did you build it yourself? I can not see how the switching and timing are done. I built my motor some 10yrs ago, mostly from old VCR parts
mervace 5 years ago
The switching is done with asingle pole, double throw micro switch driven by a cam behind the flywheel. You can see the wires twisted together coming up one side then bent90 degrees togo to the switch. Thx for the comments.
cffellows 5 years ago