Rack and pinion gear mate
Rack and pinion gear mate
(OP)
Is there an easy way to set up a rack and pinion gear mate that I am overlooking?
The boose is on the loose.
The boose is on the loose.
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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Rack and pinion gear mate
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RE: Rack and pinion gear mate
Jeff Mirisola, CSWP
http://designsmarter.typepad.com/jeffs_blog
Dell M90, Core2 Duo
4GB RAM
Nvidia 3500M
RE: Rack and pinion gear mate
I can't seem to get the action that I want.
I tried a few other things but nothing so far.
It is not real important to the design but I would still like to do it.
BTW.
2006 SP4.1
RE: Rack and pinion gear mate
Cheers,
Anna Wood
SW 2007 SP4.0, WinXP
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
http://designsmarter.typepad.com/solidmuse
http://www.phxswug.com
RE: Rack and pinion gear mate
Tech support say no dice.
Oh well.
RE: Rack and pinion gear mate
RE: Rack and pinion gear mate
I sent yet another request to our IT department to get 07 installed. I they wait long enough we can go right from o6 to 08. It's kind of beat knowing it is sitting on a shelf collecting dust.
RE: Rack and pinion gear mate
If
P = Pinion position angle
D= Linear travel of rack
RP = Pitch of rack
T = # of teeth on pinion
R = # of revolutions
Then
R = D / RP * T
That is the total number of revolutions, but all you really need is the angle (from 0 to 360) to position the pinion. So, taking this into account as well as any zero situations (i.e. D= 0), you get:
P = (((D / RP * T) + 1) – int ((D / RP * T) +1)) * 360 + .0001
The .0001 is only because solidworks will not allow you to enter 0 for an angle mate. And the int command simply rounds down to the nearest whole revolution.
So, if you set up the pinion as an angle mate (P), and the rack position as a distance mate (D), this equation will allow you to enter a linear distance while solidworks calculates a position angle for the pinion. Obviously, it could be solved the other way if that makes more sense for you.
If you want to do an animation, suppress the mates and apply a motor to the pinion or rack.
Anyway, that’s what worked for me.
Brian
RE: Rack and pinion gear mate
SWX will allow you to create an angle mate of zero.
However, you make a good point since ... in equations a mate value can NOT be set to a zero value (this is an SPR).
Good tip!
Joseph