I have replicated a very similar design but our issues seems to be with the chain when we try to move the the arm the chain seems really loose and comes off the bottom sprocket sometimes making clicking sounds. This is only when the arm goes up or I should say barely go up. When it goes down it is smooth. Any suggestion?
I think you need a chain tensioner. Also consider using a rubber belt, they come in many sizes and are very precise, they achieve 0.1mm precision with very small thin cheap ones in the reprap design. perhaps they are easier to ad a tensioner to it, the tensioner can be just a spring which pushes towards the middle zone of the chain, or a spring that pushes the cogs away from each other.
Build quality make all the difference. I added parts on the first stage to tension the chain, this stops it skipping. See the "as built" deign on vex forum. www.vexforum.com/showthread.php?t=81809
Forklifts are similar but different than this. Forklifts do not expand in height while this expands past its compacted height. Forklifts just move the load up a linear slide
Paul Greklek At the expense of some width. I have one of these in front of me and it holds up a 3 pound hammer just fine. Much heavier than the cones it will lift. Though I didn't follow this exact design; that wouldn't have been any fun.
I don't think they do. their telescopic patents are from 2017. This video is from 2014. It's also difficult to patent because it's already used as a single chain in forklifts for a century, and here is only two of them added together.
Thank you for you work, this is very inspiring.
Thanks, this really helped a lot
This is so awesome. Thank you very much. Your tutorials help a lot.
i like this.
How does the red chain move?
awesome
our team had built this, it works very good
What soft ware are you using to do this
I was going to use this for the 2015 challenge with rope and wheel tread around gears. Unfortunately couldn't end up competing in 2015.
Totaly using this for turning point
James are you okay
I have replicated a very similar design but our issues seems to be with the chain when we try to move the the arm the chain seems really loose and comes off the bottom sprocket sometimes making clicking sounds. This is only when the arm goes up or I should say barely go up. When it goes down it is smooth. Any suggestion?
On top of that it seems as if the chains skip at the bottom sprocket
TheCreator sometimes is the program itself.
we figured it out, sometimes it is too much stews o the motor especially since it is placed in the bottom, It is better if it is placed in the top,
I think you need a chain tensioner. Also consider using a rubber belt, they come in many sizes and are very precise, they achieve 0.1mm precision with very small thin cheap ones in the reprap design. perhaps they are easier to ad a tensioner to it, the tensioner can be just a spring which pushes towards the middle zone of the chain, or a spring that pushes the cogs away from each other.
*This is like a 2 Stage Forklift...*
Build quality make all the difference. I added parts on the first stage to tension the chain, this stops it skipping. See the "as built" deign on vex forum.
www.vexforum.com/showthread.php?t=81809
directions too confusing got stuck in a ceiling fan
What computer design program are you using
Autodesk Inventor Pro 2013. Animation in Inventor studio. Final comp and titles in Adobe After Effects.
how long did it take to render?
Hi, which patents are about this mechanism?
zero
This has been used on fork lift masts for the past 100 years.
Forklifts are similar but different than this. Forklifts do not expand in height while this expands past its compacted height. Forklifts just move the load up a linear slide
Instructions to build?
Kepler electronics made a good tutorial on this topic
How much could it hold or lift
Two motors as well, though. Helps a lot with the torque and improves the speed.
Chobrenga u can double down on the chains with a parallel sprocket on the same axles too
Paul Greklek At the expense of some width. I have one of these in front of me and it holds up a 3 pound hammer just fine. Much heavier than the cones it will lift. Though I didn't follow this exact design; that wouldn't have been any fun.
Sud man
Linak has a patent about this.
I don't think they do. their telescopic patents are from 2017. This video is from 2014. It's also difficult to patent because it's already used as a single chain in forklifts for a century, and here is only two of them added together.
im chesnut
Tried the Cascade lift, not very efficient, don't waste your time, or I just did it wrong one or the other
Very accurate, my team got accepted to states with a Cascade but it's just so slow, might change to a 6 bar lift.
I built one and mine is super efficient
My classmates and i will do this
i might use it also
j
im gay af
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