All Questions
19
questions
0
votes
1
answer
32
views
Linear Solenoid Pulsed
I have this part from RS: https://docs.rs-online.com/4238/0900766b81679254.pdf.
I understand quite well about why the solenoid can output more force (given same distance) or have higher power input (W)...
- 401
0
votes
0
answers
55
views
How does this motor work?
I have been on a bit of a quest to find some sort of linear motion device to compress a spring with 15kg of force 80mm at 1600mm/s, with continuous duty cycle, ideally under $40. So I was digging for ...
- 43
0
votes
3
answers
126
views
Linear Motor Design
I previously uploaded a question on trying to make a solenoid attract a magnet 80mm away, however this ended up being an impossible ask due to solenoid's having a max effective attraction distance of ...
- 43
0
votes
1
answer
33
views
Turbocharger Electronic Valve Control
I have seen that the H bridge method is used to drive the valves required to use the turbocharger feature in the engines, why do they prefer this? There is no DC motor, they open and close an ...
- 1
0
votes
0
answers
162
views
Controlled solenoid stroke length
Let me create a scenario to better illustrate the problem
I have 1500 pens that I want to individually actuate upwards with 3 different distances, ex: 10mm/15mm/20mm
I thought I could use a solenoid ...
0
votes
2
answers
168
views
Actuating Pencil To Draw Waveforms
I am looking to make a pencil whose tip moves to create a waveform as you move it across the paper.In essence, I want to be able to record a sound and then play the sound through the pencil whilst I ...
1
vote
1
answer
216
views
NO/NC AC Actuator
I'm looking to build some projector cases for a school gymnasium which is a high dust environment. I'm looking to create an enclosure with a solenoid/servo/actuator that will open the enclosure at the ...
- 111
1
vote
0
answers
45
views
Small lock actuator controlled by single lipo
I am working on a project, in which I have a small box, in which I need it to be locked from the inside. It will have a panel on the front to enter in a code to open it. It needs to be very small, ...
- 736
0
votes
1
answer
221
views
Long Stroke Solenoid Actuator
I'm wondering if it's possible to create a solenoid actuator that would be very powerful, and fast enough to keep up with a human's movements, and also relatively long (roughly 7 inches).
I found ...
- 1
1
vote
1
answer
140
views
Fast, long linear motion (about 60 cm/ 23 inches) [closed]
I'm currently researching a way to build a punch imitation (for boxing training) and for this i need a simple, fast (if it can be configurable great) and long linear motion which can handle a ...
1
vote
3
answers
727
views
Switching between +9V and -9V (using 5V logic)
I got some linear actuators today and found out that when I give them +9V they extend and -9V makes them contract. This is easy enough to test by hand, simply by wiring the actuator up to the battery ...
- 121
0
votes
4
answers
5k
views
Should I use a permanent magnet inside a solenoid for an electromagnet shuttle?
I'd like to make some kind of actuator/vibrator but much stronger. I thought of using a static, tubular solenoid, driven with AC current. Inside it would be a mobile permanent magnet cylinder (...
- 249
1
vote
1
answer
1k
views
Are electric linear solenoids the best option to push a capacitive screen button on a smartphone? [closed]
I'm trying to figure out if electric linear solenoids are the best option to activate an interface element on the touch screen of my smart phone.
I have also heard of linear actuators and pneumatics ...
- 23
2
votes
1
answer
5k
views
What is the difference between push and pull solenoid? [duplicate]
I want a solenoid that stays retracted and propels forward when current is passed through it. Is there a solenoid that does this? What is the difference between push and pull solenoid?
- 729
-1
votes
2
answers
1k
views
Many small and cheap linear actuators [closed]
Me and my friends are trying to build a linear actuator matrix. It's supposed to be a grid of pins that go up and down at reasonably fast speed (more than 1cm/s, the faster the better). Problem is, ...
- 183