Thread: Advice please
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17-03-2017 #1
Mark it and rotate one ful revolution and measure distance moved.. . . Simplizzzzz
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17-03-2017 #2
how many teeth on pinion and whats it's diameter
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17-03-2017 #3
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17-03-2017 #4
OK so im getting round about 96.16mm for one revolution of the pinion.
96.16 divided by 8000 = 0.01202 steps per revolution ???Last edited by D-man; 17-03-2017 at 09:13 PM.
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17-03-2017 #5
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17-03-2017 #6
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17-03-2017 #7
Nah wrong got it wrong.
You now have distance pinion travels for one rev which is 96.16 but you have 5:1 ratio so this drops to 19.232 for one rev of the motor which is the affective pitch. So now simply divide 1600 by pitch to get the steps per mm ie: 1600/19.232 = 83.194 steps per mm
Doh didn't see MC done it.!Last edited by JAZZCNC; 17-03-2017 at 09:39 PM.
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17-03-2017 #8
1.25MOD is 32.69mm OD.
24DP is 1.09" (27.68mm), and 20DP is 1.308" (33.22mm), and 22DP does not appear to be a common size.
So assuming 1.25MOD and me reading the correct number from the chart, gives a pitch of 3.926mm per tooth, or 90.289mm for one rotation of the gear.
Or to assume 20DP, it would be 91.7194mm per rotation.
Are you sure it's a 23 tooth gear?
As even working backwards from 96.16mm, it doesn't fall on any common tooth size.
That's assuming I'm not making a complete hash of the calculations.
Off course, easier option would be just to measure the distance over as many teeth as possible and calculate the tooth pitch that way.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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17-03-2017 #9
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18-03-2017 #10
Defiantly a 23 tooth pinion
32.82 Dia Pinion (digital Gauges so may change each time lol i will also try a normal set in case these are off.)
93mm Travel now lol (Hard to get to the pinion to mark it, but i would rather go with this measurement)
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