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  1. TMcRally

    Recommend a specialist for solenoid development

    I need a recommendation for a specialist in solenoid development to maximize the potential of a solenoid we wish to manufacture. I would prefer a company in Brisbane Australia but its not necessary.
  2. TMcRally

    Solenoid design help again

    Hi, I moved this post as I had parked it in the wrong place.... Sorry :sick: Could people smarter than me fact check or advise where I'm right and where I'm wrong. TIA I have a need to produce a small run of permanent magnet, Latching solenoid that have =/>15N @12mm - More is better.... I...
  3. TMcRally

    Solenoid design help

    Sorry, I should have said 0.5mm diameter wire above. 90m X 0.5mm wire with 7.8Ohms resistance.
  4. TMcRally

    Solenoid design help

    It is a straight linear armature pull type with magnetically latching. It pulls a mechanism that when latched back it reverses the spring action from push, to pull, when the solenoid is released and extended the action reverts back to push type again, beyond this mechanism is a 90° crank to...
  5. TMcRally

    Solenoid design help

    Thank you very much for your answer, it's much appreciated. I will struggle with the packaging of a capacitor, I'd like to explore the single coil, pull type with non-energized magnetically latching if that's possible. From your answer, my new understanding is... If I am limited to 24Vdc @...
  6. TMcRally

    Solenoid design help

    I'm well out of my comfort zone sorry 😐. I would like to develop our own design and understanding. I have had quite a good look and only seem to find very basic or very advanced topics, I was hoping for some middle ground for dummies Requirement... latching solenoids I hope to get the maximum...
  7. TMcRally

    Inventor vs Fusion: Similarities & Differences.........................

    I think Fusion is very good for creating tool paths and strategies for CNC machining (probably the best bang for buck for small volume) and I think Inventor is very good at 3d design. I haven't used Fusion for design because I have inventor but it does strike me as strange that the 3d modelling...
  8. TMcRally

    Thoughts on decoupled suspension.

    Sorry, I meant solid mount the subframe, along the lines of Greg's post.
  9. TMcRally

    Thoughts on decoupled suspension.

    I watched a video of Alan Jones driving a Williams with no suspension. He wasn't too happy with the ride 🙂. But it was quicker, I'm assuming it was too hard on the car to continue with and with little controls for individual track/driver setup. He said it might be ok with suspension under the...
  10. TMcRally

    Thoughts on decoupled suspension.

    Thanks for this Brian. My mind is all over the place on this, I started out thinking hydraulics then, jumped to electric, then back to hydraulics because I thought, maybe I could add some active component with a pump. Then I wondered how fast the hydraulics could act....maybe with a pump and...
  11. TMcRally

    Thoughts on decoupled suspension.

    Thanks Greg. This is a learning curve for me. I enjoy the R&D learning and inventing the most so I'll follow up your leads and see where it goes. That must have been a great project, it must have been really frustrating when they hit the pause button. Regards Dave
  12. TMcRally

    Thoughts on decoupled suspension.

    I'm headed into retirement and want to plan a toy to build for fun, for me. It won't necessarily make sense to others but it will to me. I have been around Subaru Impreza Tarmac Rally cars a lot and have a shed full of parts so I'll make use of those. I'd like to design a space frame for the...
  13. TMcRally

    Choosing the Right CAD Software for Mechatronics Projects

    I started design on computers before 3D CAD with Turbo CAD 2D on a 286 computer. It came on 3 floppy discs. I would save up any deleted components for lunch time, select them then go for lunch, it was still working on the edits until well after lunch. Big excitement when the 386 came out with a...
  14. TMcRally

    Choosing the Right CAD Software for Mechatronics Projects

    I started design on computers before 3D CAD with Turbo CAD 2D on a 286 computer. It came on 3 floppy discs. I would save up any deleted components for lunch time, select them then go for lunch, it was still working on the edits until well after lunch. Big excitement when the 386 came out with a...
  15. TMcRally

    Choosing the Right CAD Software for Mechatronics Projects

    I would think they are both very good, its pretty much at the core of the software. The more complex assemblies test out your computer particularly the video card but there are strategies to minimise this. I haven't used Solidworks but the people who do seem happy with it. I can vouch for...
  16. TMcRally

    Choosing the Right CAD Software for Mechatronics Projects

    I work in mechanical design. I use Autodesk inventor for design and Fusion 360 for G Code. Both are very good. Both are subscription based which I hate, this is why I have kept my 2018 version of Inventor even though it has many glitches but I have a perpetual licence for it. My Fusion is...
  17. TMcRally

    Back EMF on solenoid control

    I had a meeting with an electronics engineer who specialises in this area. If I fit a diode or bi-directional zener diode on the solenoids, I have done everything I am reasonably responsible for to control back EMF. It is the person controlling the systems responsibility to design to manage...
  18. TMcRally

    Back EMF on solenoid control

    There is no resistance, I was getting frustrated is all. He argues that he sees a 100V differential across his relay and has to deal with a 100V arc when we use the Zener Diode or Transorb. Description Number - 1.5KE33CA He says it is so strong it jumps across tracks on his PCB and is...
  19. TMcRally

    Back EMF on solenoid control

    Attached file on the solenoid we use, it is manufactured for us in Japan specifically to match our load requirements and stroke. I do not know the inductance. I do not know what the other companies relays are.

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