My first thought was that this is overcomplicated. After spending about 30 minutes thinking of less complicated version I must admit defeat. Everyday we learn something new.
I've been thinking about this comment for the past month. There are simpler methods such as the use of a prismatic joint. To keep it purely links, you can also use approximates such as a Grasshopper linkage (aka Evans linkage) or another fairly accurate approximate straight line 4-bar linkage like a Chebyshev lambda linkage. If you want perfect straight line movement using a linkage, however, the question becomes much more complicated. The Peaucellier-Lipkin inversor utilizes 8 links to move a single node output in a straight line, however, to have a platform attached to it, you require 12 links, including the platform being counted as a link of its own. There are straight-line linkages that utilize fewer links, such as Hart's Antiparallelogram Inversor and A-frame Inversor, which use only 6 links. However, the Antiparallelogram and the A-frame will require at least 4 additional links (just like the Peaucellier-Lipkin inversor), making the link count 10. It's an improvement, but it can be improved even further. I found another linkage that also uses 6 links to move an output. However, instead of requiring 4 additional links for an added moving platform, it only needs 2, which reduces it down to 8 links. I will try to develop the idea and relay it to Mr. Thang at some point in the near future.
It's slightly ironic to have a linear actuator drive this assembly since Peaucellier's whole claim to fame was to create linear motion from rotary motion.
You are just incredible... Huge fan of ur videos... What is the basic thing that lets you design linkages... I mean how do you even think so complicated at times...
Interesting design , I need to move a cinema camera up and down as shown here on that plate how many other option we have ? Can this support heavy duty lifting? Maybe a 10kg camera package? Thank You 🙏🏻
My videos aim only to show concepts for mechanical mechanisms. Kinetic calculations are rarely performed. For example, this video was made based on: en.wikipedia.org/wiki/Peaucellier%E2%80%93Lipkin_linkage
I'm thinking of making a wall mounted pillar drill with two of these (one above the other). Two keeps the drill pointing down. Yeah I could just buy one but where's the fun in that.
My first thought was that this is overcomplicated. After spending about 30 minutes thinking of less complicated version I must admit defeat. Everyday we learn something new.
I've been thinking about this comment for the past month.
There are simpler methods such as the use of a prismatic joint. To keep it purely links, you can also use approximates such as a Grasshopper linkage (aka Evans linkage) or another fairly accurate approximate straight line 4-bar linkage like a Chebyshev lambda linkage. If you want perfect straight line movement using a linkage, however, the question becomes much more complicated.
The Peaucellier-Lipkin inversor utilizes 8 links to move a single node output in a straight line, however, to have a platform attached to it, you require 12 links, including the platform being counted as a link of its own.
There are straight-line linkages that utilize fewer links, such as Hart's Antiparallelogram Inversor and A-frame Inversor, which use only 6 links. However, the Antiparallelogram and the A-frame will require at least 4 additional links (just like the Peaucellier-Lipkin inversor), making the link count 10.
It's an improvement, but it can be improved even further.
I found another linkage that also uses 6 links to move an output. However, instead of requiring 4 additional links for an added moving platform, it only needs 2, which reduces it down to 8 links.
I will try to develop the idea and relay it to Mr. Thang at some point in the near future.
I think this is much more sensible than Peaucellier linkage 3a with the timing belts.
So beautiful.. I love it
It's slightly ironic to have a linear actuator drive this assembly since Peaucellier's whole claim to fame was to create linear motion from rotary motion.
You are just incredible... Huge fan of ur videos... What is the basic thing that lets you design linkages... I mean how do you even think so complicated at times...
Complexity comes from simplicity.
The mechanism in this video come from Peaucellier and parallelogram linkages.
Interesting design , I need to move a cinema camera up and down as shown here on that plate how many other option we have ? Can this support heavy duty lifting? Maybe a 10kg camera package? Thank You 🙏🏻
A design based on this concept can withstand a 10 kg camera on the yellow plate.
Genius mr thang
How one can calculate such kind of mechanisms? Do you use analytical mechanics or just eyeballing?
My videos aim only to show concepts for mechanical mechanisms. Kinetic calculations are rarely performed.
For example, this video was made based on:
en.wikipedia.org/wiki/Peaucellier%E2%80%93Lipkin_linkage
I'm thinking of making a wall mounted pillar drill with two of these (one above the other). Two keeps the drill pointing down.
Yeah I could just buy one but where's the fun in that.
That is awesome work you made there.
I wrote you a mail about Linear Actuator, hope you will ready it. :-D
If possible, please post the inventor files of this video on the site. Thank you very much for your tutorial🌹🙏
Link to download the Inventor files has been added to the video description recently.
@@thang010146 thank you very much🙏🌹
Good
Supperb trace
Very complicated to design. Too many moving parts.
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