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evaluateQuery gives runtime error
Hi, I'm trying to create my own featurescript to produce a helical gear - primarily as a learning exercise. Its exercising me!! I'm developing the code in stages and the current iteration is shown below. The problem I'm experiencing is that the generation fails and Featurescript reports: 'Call evaluateQuery(Context,… -
How to find the radius or diameter of a curve in Featurescript
I'm trying to amend some code to generate a spur gear - eventually I want it to create a helical gear, but I have to walk before I can run! The starting position is that I will have created a part studio with the relevant gears as blank extruded pieces. The diameter of the extrusions are the gear tip diameters as I'm… -
Gear Relation for Internal Gear aka Spirograph
Hi Team, I have developed a SpiroGraph that has an adjustable outer ring which auto generates the gear teeth depending on ring size which works great. However I cannot work out how to animate the rotation of the 'Spiral' Disc within the outer ring. I have watched this… -
Re: 2 gears & a diametral rack
one general tip i can share while you work on getting us a link is to use Variable Studios to do your gear math, that way you have the gear ratios as variables available in the assembly, which can be used in the gear mates. -
Spur Gear with more than 250 teeth?
@NeilCooke @NeilCooke3D I need to generate gears with more than 250 teeth. Why is there a limit on the spur gear FS? Can I disable it somehow? -
Spur Gear FeatureScript pressure angle slightly off?
Using your fabulous FeatureScript spur gear generator, I created a gear with a pressure angle of 14 1/2 degrees. I wanted to illustrate pressure angle for a presentation, so I made this sketch: https://cad.onshape.com/documents/688f55650b8e92fc98f95675/w/408b19c4414b5b1714d5a5dd/e/b47b9f32c37fbdd495a006a9 The… -
Skew Gear
Hi everyone, I need to design a skew gear, I have seen a few tutorials and now I can draw the sketch and extrude a simple gear, the problem is I don't know how to generate the skewness as pictured below. Thanks! -
Re: cycloidal gear animation
don't know what kind of kimatics generates the outer profile but I have an example of cyclo gear when cylindrical teeth are stationary in the housing. anyway there are no fundamental difference between evolvental and cycloidal gearing since its all about rolling of cylindrical surfaces, so you need to use gear mate with… -
Re: Are gear mates really that hard to do in OnShape?
@wesley, mating gears is not particularly difficult in Onshape. Use REVOLUTE or other appropriate mates to constrain the motion of each gear individually. Then apply a Gear RELATION to those MATES. The attached screenshot illustrates a typical feature tree for this. Take a deep breathe and slowly repeat the phrase,… -
Re: How to extrude a solid with holes
Thanks Bruce for the help and the offer to collaborate. In this case the gears are all pretty specific and getting the dimensions will be more trouble than just tweaking the arcs to ensure they are constrained. In general though I love the idea of a gear generator.
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