Thank you, it’s nice to know it’s useful

Try the rack and pinion gear tutorial. I did that more recently and eradicated the built in backlash. It’s very similar to the video 3 you have watched with a minor tweak. I will be updating video 3

@@PDWCreative Thanks for the reply. I will check it out shortly.

Only one showing Solidworks standard templates. It’s on my list of ones to make

@@PDWCreative hi excuse me can you show how to make watch wheels please?

Thank you! Glad to help

Thank you. I enjoyed making this one

Its a midpoint constraint. The option turns yellow in the video just before its placed

i might be missign something but what is the construction line that is used for the midpoint constrained to? is it an arbitrary angle? @@PDWCreative

Try this alternative. This is a version of the gear with no backlash kzfaq.info/get/bejne/ftKpaKlpl5O0iYU.html

Only the first circle updates until the equation panel is closed. All the other equations think they are linking to the old value (100mm) until the software updates. All the circles change as soon as the user accepted

There are a few ways you can make the curve. If you place the curve made at 11:27 and the rest of the tooth profile in a new sketch its possible to extrude the tooth without placing the approximate circle later. I mentioned in the video I used the approximate circle as this is the point when things can go wrong. I remember this happening in my practice attempts before making the video. In some instances in Solidworks, circles can be easier to manipulate than splines. So for this design I opted to use the spline as a template only. I can then place a circle, trim it and fix it to the spline. When the design changes the circle based curve will track the spline change. You are right that its not the original involute but it will match closely enough to produce a gear that will work in solidworks motion analysis. As an alternative, if you need a gear that absolutely tracks the involute without an approximate circle try building the involute curve and tooth profile in a new sketch before extruding.

@@PDWCreative Thanks for your reply. Well I know using splines it is a simple method during the 3D construction but in some case it causing problems. For example making CNC program or STL files for 3D models, because of the spline curve not exact, maybe it is a quarter to sixth(?) order approximation function - curve. In some cases, I was told that I was a visual designer because the CNC programgenerator couldn't made a program for my model.

There are sometimes problems with spline interpretation when converting from one cad format to another. I think circles, standard curves and lines translate across formats ok. But splines can are more free flowing and difficult to define. So when the CNC machine starts tracing the shape it will just stop at the point it doesn’t recognise the interpretation from the exported cad format. I’m not exactly sure why this is but it’s probably because different CAD softwares make non uniform shapes in different ways. Whereas they can all agree on common coding for standard shapes

Your not wrong. I need to update this video. I've updated the method in the following link. As soon as I have time I will be re-recording this explanation.kzfaq.info/get/bejne/ftKpaKlpl5O0iYU.html

Most of the other circles are driven by the pitch circle dimension. The linked equations dont always update until you press ok and exit the equation menu. Even then, you sometimes have to prompt Solidworks to update by hitting the command at the top. Use the equations and you can’t go wrong. Check the results manually if you need as they are very simple equations. Try not to copy dimensions without the equations as you’ll get stuck.

The main difference between the two gears is the helix angle. It is generally between 15 to 30 degrees but can be more. You could try applying a twist to the modelled gear. I’ll try and make a video about it in the near future.

The involute template is a spline. The overlaid profile in the later step is a curve. The overlay is used to prevent possible solidworks errors when adjusting the size of the gear.

@@PDWCreative thankyou👍

Start with the number of gear teeth to get the ratio. You may need to adjust the module & tooth count depending on the desired pitch circle diameter. If the combination is incompatible or leads to an unrealistic gear profile you will see it pretty quickly. If this is the case go back and make adjustments.

@@PDWCreative thank you very much I will definitely be experimenting with it

In order for two gears to mesh they must have the same module and pressure angle. If the modules are different the gears will be incompatible.

There needs to be some gap to allow the gears to mesh. You could try experimenting with a different module and pressure angle. A smaller module gives a finer tooth. Just be careful not to go too fine. You may start to see the gears slip

There are some parts of spur gear design applicable to this type of belt. But T5 belts use a slightly different profile. I don’t think they use involutes. You would still need to know the module.

@@PDWCreative Thank You, you are right, the profile is different, but also the way they calculate the gear, i think. According to the Technical-Section-Timing table of the SPD/SI company the pitch diameter of a 30 Tooth T5 Timing gear would be 47.9 mm witch is bigger then the outside Diameter 46.9, where in your calculation the pitch diameter of a 30 Tooth spur gear, with module 2, would be 60 mm and that is much less then the outside or Addendum. Also the Module of timing gears seem to change with the number of Teeth. Example for a 30 Toothed timing gear the module would be the pitch diameter divided by the number of teeth = 1.9566 where the module of a 111 toothed T5 gear the module would be 176.85 / 111 = 1.5932. The pitch of a T5 timing gear is 5mm measured from one tooth to another on a belt laying flat on a surface. So, many mysteries for me there. Anyway thank you for your time. Jean

You should be able to modify the addendum using this method

I need to do another video on backlash. There are different ways to apply it

@@PDWCreative Yes, it will be a great favour sir. Sir I have one more question that I am designing a gear of module 5. But according to equations ,provided in video 1, base circle is smaller than root circle. Pls let me know how can a gear can be designed in this situation.

Try looking through the equations list and finding the conflict. Also check the statement structure. If you don’t get it exactly right Solidworks will not understand

It’s all in the video equations

Hi

It’s best to set yours up following the steps. It’s a really useful template once you’ve gone through the pain once

It’s best to follow the instructions to create the model

Its difficult to know what went wrong in your model without more details. I didn't edit out any of the steps I took in this tutorial so you should end up with the same result I did. But if you are looking for a different pressure angle, module and tooth count, things can get out of control very quickly as there are limits to how far you can vary each in combination.

I appreciate the frustration as I too often have difficulty struggling through KZfaq tutorials. However, this person has put in a lot of effort to make these overall get professional videos, so we should use a more respectful tone.

There’s lots of ways to build most things in Solidworks. Try to find a method that works for you.

@PDWCreative At work I use solidworks and at home I use Autodesk. Hands down Autodesk is faster for modeling, assembly, and animation. The only thing I like in solidworks is drafting. Your video was great though. My frustration lies with solidworks and the user interface.