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Search: Posts Made By: Gerald D
Forum: Motors & their mountings Thu 07 April 2011, 07:56
Replies: 166
Views: 69,596
Posted By Gerald D
Do you have a specsheet or dimensions on that...

Do you have a specsheet or dimensions on that motor/gearbox? I am curious whether the reduction is by a single pair of gears (25:133) with output shaft well offset, or whether there is an...
Forum: Motors & their mountings Thu 07 April 2011, 02:05
Replies: 166
Views: 69,596
Posted By Gerald D
There maywill be more decimals after the 5.32****

There maywill be more decimals after the 5.32****
Forum: Motors & their mountings Sun 03 April 2011, 21:05
Replies: 166
Views: 69,596
Posted By Gerald D
David, interesting discovery with that Motionking...

David, interesting discovery with that Motionking gearbox...have you asked MK to confirm the ratio?
Forum: Motors & their mountings Mon 05 April 2010, 05:28
Replies: 166
Views: 69,596
Posted By Gerald D
Robert, remember that Kobus would be set up in...

Robert, remember that Kobus would be set up in millimeters, not inches.
Forum: Motors & their mountings Mon 29 June 2009, 06:08
Replies: 166
Views: 69,596
Posted By Gerald D
If you do not have belt reduction, then you can...

If you do not have belt reduction, then you can theoretically use a lot more (30) microsteps per revolution, but you can play with that later to see if it makes a real difference in the cutting...
Forum: Motors & their mountings Mon 29 June 2009, 04:25
Replies: 166
Views: 69,596
Posted By Gerald D
About 10 usteps (2000 per revolution): ...

About 10 usteps (2000 per revolution):

Less, the cut could be rough.
More, your PC cannot generate the pulses fast enough
Forum: Motors & their mountings Fri 26 June 2009, 09:39
Replies: 166
Views: 69,596
Posted By Gerald D
If that gearhead motor is built like the Oriental...

If that gearhead motor is built like the Oriental Motor ones, the gearhead cannot simply be removed to expose a nice motor shaft - the motor shaft has gear teeth cut directly into it. See What does a...
Forum: Motors & their mountings Sat 21 February 2009, 11:32
Replies: 166
Views: 69,596
Posted By Gerald D
The Gecko 201, 202 & 203 drives will all drive...

The Gecko 201, 202 & 203 drives will all drive the Motionking 34HS4801 motors, that is no problem.
If I was in your position, I think I would buy the MK drives that they recommend. I wonder why they...
Forum: Motors & their mountings Sat 21 February 2009, 10:55
Replies: 166
Views: 69,596
Posted By Gerald D
Svein, I think that we will be able to help...

Svein,

I think that we will be able to help you to get the MK drives to work, but we do not have the experience. The MK drives will be very cheap for you because they will be shipped for free...
Forum: Motors & their mountings Fri 20 February 2009, 12:37
Replies: 166
Views: 69,596
Posted By Gerald D
That MotionKing drive is quite different to the...

That MotionKing drive is quite different to the Geckodrives that we know well. Unfortunately we will not be able to offer you much support on getting it wired and set up.
Forum: Motors & their mountings Fri 20 February 2009, 09:33
Replies: 166
Views: 69,596
Posted By Gerald D
Here is a page from MotionKing's website: ...

Here is a page from MotionKing's website:
http://www.motionking.com/support/unipolar_bipolar.htm

Which appears to be copied from this page of Oriental Motor:...
Forum: Motors & their mountings Fri 20 February 2009, 09:28
Replies: 166
Views: 69,596
Posted By Gerald D
Here is a list of MotionKing's drives: ...

Here is a list of MotionKing's drives:
http://www.motionking.com/Products/Drivers/stepper_motor_drivers.htm

. . . . but I do not see the 2H090MK on that list today?
Forum: Motors & their mountings Fri 20 February 2009, 06:56
Replies: 166
Views: 69,596
Posted By Gerald D
Is 34HS4801 correct? You need to be very careful...

Is 34HS4801 correct? You need to be very careful to order correctly.

None of us have used MotionKing Drivers yet, but I think they should be okay. Better check your numbers. ;)
Forum: Motors & their mountings Thu 19 February 2009, 22:08
Replies: 166
Views: 69,596
Posted By Gerald D
MrNorway, (do your friends call you MrNorway?) ...

MrNorway, (do your friends call you MrNorway?)

Have a look at these graphs to get an idea of the differences:

http://www.mechmate.com/Forum/messages/15/3339.gif

(From Oriental Motor...
Forum: Motors & their mountings Sun 08 February 2009, 07:23
Replies: 166
Views: 69,596
Posted By Gerald D
Martin, I started a new thread for you over here:...

Martin, I started a new thread for you over here: Starting out, placing orders - Wroclaw, Poland (http://www.mechmate.com/forums/showthread.php?t=1393). There is the reply to your laser cut question.
Forum: Motors & their mountings Fri 06 February 2009, 21:50
Replies: 166
Views: 69,596
Posted By Gerald D
Hi Martin. Kobus is using that combination of...

Hi Martin. Kobus is using that combination of motor and drive on his machine: BBB is cutting #6 - Brakpan, Gauteng, S.Africa (http://www.mechmate.com/forums/showthread.php?t=686)
Forum: Motors & their mountings Tue 23 December 2008, 07:47
Replies: 166
Views: 69,596
Posted By Gerald D
That is a very good bit of info Jama, thanks! Hmm...

That is a very good bit of info Jama, thanks! Hmm . . under US$200 for a nicely geared motor . . . .
Forum: Motors & their mountings Sun 10 August 2008, 21:04
Replies: 166
Views: 69,596
Posted By Gerald D
Robert, you have tried to get me to answer these...

Robert, you have tried to get me to answer these questions many times, and you should have figured out by now that I am not going to answer them. I do not have the experience to give a correct...
Forum: Motors & their mountings Sun 10 August 2008, 11:14
Replies: 166
Views: 69,596
Posted By Gerald D
Do you think that the 1000 oz-in is suddenly bad,...

Do you think that the 1000 oz-in is suddenly bad, while the 999 oz-in is still good? What is the shape of the good/bad graph before we get to 1000 oz-in?
Forum: Motors & their mountings Sun 10 August 2008, 09:27
Replies: 166
Views: 69,596
Posted By Gerald D
Take your x-axis; there your direct-drive...

Take your x-axis; there your direct-drive MotionKing will have a 20 tooth pinion. One turn of the motor will move the cutter 3.14" The motor torque will give you enough force to move the cutter, or,...
Forum: Motors & their mountings Fri 08 August 2008, 06:11
Replies: 166
Views: 69,596
Posted By Gerald D
It makes much more sense to use the same motor...

It makes much more sense to use the same motor for everything. For example, next year you have one motor that becomes suspicious . . . . what will you use to exchange it with so that you can diagnose...
Forum: Motors & their mountings Thu 07 August 2008, 07:16
Replies: 166
Views: 69,596
Posted By Gerald D
If you want to run off one power supply (you can...

If you want to run off one power supply (you can have more than one supply), that will give you a fixed voltage which will closely match one inductance value.

Rated currents can be completely...
Forum: Motors & their mountings Mon 05 November 2007, 02:26
Replies: 166
Views: 69,596
Posted By Gerald D
Can't actually help. If it all works and you can...

Can't actually help. If it all works and you can measure everything, why do you need to calculate anything? You don't have to lay thicker wires to your house or build a new power station, or anything...
Forum: Motors & their mountings Mon 05 November 2007, 01:55
Replies: 166
Views: 69,596
Posted By Gerald D
Then you can measure the ac power by measuring...

Then you can measure the ac power by measuring the amps at the 220V side. Volts x Amps = Power (Watts)
Forum: Motors & their mountings Mon 05 November 2007, 00:56
Replies: 166
Views: 69,596
Posted By Gerald D
Do you already have the motors and are they...

Do you already have the motors and are they already connected and running? What is the voltage of your power supply?
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