dmarlen
Newbie
Posts: 35
|
 |
« on: March 26, 2011, 09:02:36 PM » |
|
Let's say I've got a master and a slave gear... and they're non-circular gears. Now I would like to add a circular gear to each of the 2 shafts I already have. What is the easiest way to design the gears so they will fit the distance of the shafts?
Thanks.
David.
|
|
|
|
|
Logged
|
|
|
|
|
ArtF
|
|
« Reply #1 on: March 26, 2011, 09:29:07 PM » |
|
HI David:
Im hoping as of next release that the "what if" calculato r.. ( the ?? button on the spur gear types tab) will allow you to simply enter a mod or DP, and a center distance and ratio and have it tell you what gears would work..
In the meantime its a bit hard to calculate it.
Art
|
|
|
|
|
Logged
|
Thanks, have fun,
Art
|
|
|
awander
Newbie
Posts: 38
|
|
« Reply #2 on: March 27, 2011, 12:16:50 AM » |
|
I'm a little confusd by what you want to do-if you have a master and a slave that are non-circular, and mesh with each other, you can't add circular gears to the same shafts, and have the circular gears also mesh with each other-the shafts wouldn't turn, as the concentri c gears would need to turn at different(and varying) rates from each other
|
|
|
|
|
Logged
|
|
|
|
|
ArtF
|
|
« Reply #3 on: March 27, 2011, 07:18:25 AM » |
|
Hi Andy:
Not unusualt really.. its a matter of placing the gea ron the shaft, but its not locked on the shaft.. If you place a gear on the first shaft for example.. then mesh a gear to that gear so its
center is on the second shaft.. the fact you placed it by meshing it to the first round gear means the program will not lock it to the second shaft..ju st place it here. Its the equivalen t of placing a gear on a bearing on that shaft.. so its rotation is independe nt of the second elliptica l gear.
In a clock it often occurs that way where a gear on a shaft actually rotates opposite direction s or at a differing speed than the other gears on that shaft..
GM always rotates a gear based only on what gear its meshed to , OR the shaft it was placed on. So ..place a gear on a shat and its locked to it, place it on a gear and its locked to that gear..
Art
|
|
|
|
|
Logged
|
Thanks, have fun,
Art
|
|
|
awander
Newbie
Posts: 38
|
|
« Reply #4 on: March 27, 2011, 11:39:09 AM » |
|
Thanks Art-that is really neat.
|
|
|
|
|
Logged
|
|
|
|
dmarlen
Newbie
Posts: 35
|
|
« Reply #5 on: March 31, 2011, 02:11:15 PM » |
|
Art, Well it looks like the next release is going to have some nice extra features. What's the release date? 4/2/11? 4/3/11? maybe 4/10/11 if last minute bugs?  David. |
|
|
|
|
Logged
|
|
|
|
|
BobL
|
|
« Reply #6 on: March 31, 2011, 04:21:09 PM » |
|
Hi dmarlen;
That same question come up yesterday, although I cannot be specific with an exact date for the newer release, I will say it isn't too far away. We still have a few little quirks to iron out, but once Art performs his magic "again" we will post it on forum.
Cheers
Bob;)
|
|
|
|
|
Logged
|
Gearotic Motion
Bob
|
|
|
|
ArtF
|
|
« Reply #7 on: March 31, 2011, 08:15:36 PM » |
|
David
:
Should be very soon. Everytime I think Im ready, I get pulled into adding something else..
Today I added more timing pulleys.. ( GT's and HTD's..) .
Now, as its about ready .. Im very close to tearing out the spokes in favour of much better
ways of spoking a gear with much more artistic types of spokes as well.
Wont be too long though..
ARt
|
|
|
|
|
Logged
|
Thanks, have fun,
Art
|
|
|
bpark1000
Newbie
Posts: 5
|
|
« Reply #8 on: May 09, 2011, 04:51:33 AM » |
|
I assume you are trying to design a set of gears for a specific ratio and center spacing? Design a set that gets the spacing close to what you want. Then scale the gears to get the spacing exact. For example, if you need 3.816" center-to-center, and your design gives you 4", then scale the gears by 3,816/4.000 = 0.954
You also do this trick to get 2 sets of spur gears of different ratios between the same 2 shafts (as in a clock) where the hour/minute/second hands are on coaxial shafts.
|
|
|
|
|
Logged
|
|
|
|
|
