Very inneficient way of doing it and doesn't follow parametric CAD best practices at all... If you are reading this do yourself a favor and find a better tutorial to follow!
Could you recommend some specific changes I could make? I made this video only taking what seemed the simplest way, if there is an easier and more efficient way I will be happy to repost with that way.
@@FusionForge-pm1jz Sure! Fundamentally, a good parametric CAD model should allow you to go back and adjust things after the fact and update in a consistent and predictable manner, which is missing here. This model has a whole bunch of related things dimensioned separately that would not regenerate properly for example, the size of the holes, the pin diameter and hole in the hinge, the number and size of the "notches", etc... Then there are some redundant steps and/or convoluted workflows. As far as solutions go, here are a few things that would help: - The center of the pin should probably be on the origin having the "mounting" face of the leaf on front plane also makes sense but it should at least be on the right plane. - Sketching tangent lines to the arc, you can drag a line and pick up both the tangent and coincident relations, no need to draw it outside, add tangent relations and trim... - The thickness of the leaf and "knuckle" should be related. You are dimensions the leaf first and then the two circles around the pin separately so they are not linked at all... In this case you could save yourself a lot of time and use the "thin" extrude option, which would take care of all of this (or at least use a construction line between the two circles equal to the leaf thickness... - Hinge length, I would highly recommend using a variable for this so that you can use it for the knuckle cutouts and probably the pin... i.e. set the knuckle sketch to be "length/5" - Using the loft tool for the holes is a very "unorthodox" way of doing it... Just create a sketch with a point where each hole goes and use the hole tool with the countersink option. And if you were do a sketch like this, make the circles equal instead adding a separate dimension to each. For the other side of the sketch, you don't need to convert before adding the relation, you can just put a concentric relation to the other sketch. - Creating a random plane to mirror doesn't serve any purpose. Mirror along the right plane, this way you can use a simple pattern to cut the knuckles. And on that subject, jus draw the first two rectangles (one for the left and one for the right leaf cut), and extrude remove these then linear pattern. And preferably use a variable for total length of the hinge to compute the length of each rectangle as well as the number of instances in the pattern. -For the pin, make the sketch with an offset distance from the rest of the hinge (instead of typing the diameter). Really though hinges would usually start with the pin diameter (i.e. an existing metal bar size) and make the formed metal part to match so the pin should be part of the first sketch. - For the assembly mate, it would be easier to add an explicit mate connector in the part studio that matches the head of the pin (but assigned to the right leaf). Anyway, here's a list of things that I though weren't done what I would call "properly". It's one thing if you are trying to just get the job done for yourself (you did get a working model of the hinge at the end) and just titling the video something like "attempting to model a hinge in Onshape" but this shouldn't be presented as a "tutorial", especially not with the word "mastery" in the title as this is misleading and is not teaching beginners that might be watching this good habits. That's what prompted me to comment in the first place... Anyway, I hope you find this feedback useful and I appreciate you honestly asking for how to improve as this is a good attitude to have and was worth my time to type a detailed response! PS I do have a video on making a hinge on my channel where some of what I am talking about is shown (and other probably overkill things)....
Thank you I'll see when I can make a video with all of these changes. I need to get better with scalable designs and will watch your video for some more advice. I definitely need to learn more about the functions of Onshape such as the countersink (which I wasn't aware existed in Onshape) and overall order of designs like you said about adding the pin to the first sketch rather than later on
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Very inneficient way of doing it and doesn't follow parametric CAD best practices at all...
If you are reading this do yourself a favor and find a better tutorial to follow!
Could you recommend some specific changes I could make? I made this video only taking what seemed the simplest way, if there is an easier and more efficient way I will be happy to repost with that way.
@@FusionForge-pm1jz Sure!
Fundamentally, a good parametric CAD model should allow you to go back and adjust things after the fact and update in a consistent and predictable manner, which is missing here.
This model has a whole bunch of related things dimensioned separately that would not regenerate properly for example, the size of the holes, the pin diameter and hole in the hinge, the number and size of the "notches", etc...
Then there are some redundant steps and/or convoluted workflows.
As far as solutions go, here are a few things that would help:
- The center of the pin should probably be on the origin having the "mounting" face of the leaf on front plane also makes sense but it should at least be on the right plane.
- Sketching tangent lines to the arc, you can drag a line and pick up both the tangent and coincident relations, no need to draw it outside, add tangent relations and trim...
- The thickness of the leaf and "knuckle" should be related. You are dimensions the leaf first and then the two circles around the pin separately so they are not linked at all... In this case you could save yourself a lot of time and use the "thin" extrude option, which would take care of all of this (or at least use a construction line between the two circles equal to the leaf thickness...
- Hinge length, I would highly recommend using a variable for this so that you can use it for the knuckle cutouts and probably the pin... i.e. set the knuckle sketch to be "length/5"
- Using the loft tool for the holes is a very "unorthodox" way of doing it... Just create a sketch with a point where each hole goes and use the hole tool with the countersink option. And if you were do a sketch like this, make the circles equal instead adding a separate dimension to each. For the other side of the sketch, you don't need to convert before adding the relation, you can just put a concentric relation to the other sketch.
- Creating a random plane to mirror doesn't serve any purpose. Mirror along the right plane, this way you can use a simple pattern to cut the knuckles. And on that subject, jus draw the first two rectangles (one for the left and one for the right leaf cut), and extrude remove these then linear pattern. And preferably use a variable for total length of the hinge to compute the length of each rectangle as well as the number of instances in the pattern.
-For the pin, make the sketch with an offset distance from the rest of the hinge (instead of typing the diameter). Really though hinges would usually start with the pin diameter (i.e. an existing metal bar size) and make the formed metal part to match so the pin should be part of the first sketch.
- For the assembly mate, it would be easier to add an explicit mate connector in the part studio that matches the head of the pin (but assigned to the right leaf).
Anyway, here's a list of things that I though weren't done what I would call "properly". It's one thing if you are trying to just get the job done for yourself (you did get a working model of the hinge at the end) and just titling the video something like "attempting to model a hinge in Onshape" but this shouldn't be presented as a "tutorial", especially not with the word "mastery" in the title as this is misleading and is not teaching beginners that might be watching this good habits. That's what prompted me to comment in the first place...
Anyway, I hope you find this feedback useful and I appreciate you honestly asking for how to improve as this is a good attitude to have and was worth my time to type a detailed response!
PS I do have a video on making a hinge on my channel where some of what I am talking about is shown (and other probably overkill things)....
Thank you I'll see when I can make a video with all of these changes. I need to get better with scalable designs and will watch your video for some more advice.
I definitely need to learn more about the functions of Onshape such as the countersink (which I wasn't aware existed in Onshape) and overall order of designs like you said about adding the pin to the first sketch rather than later on