New start

[Nr1madman]

Nice,I like it the way you put everything in there!

Thanks Nick!

Hope it works well ;)

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[Nickhofen]

Thanks Nick!

Hope it works well ;)

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It will!!!
Why you are not satisfied with the UC300 usb version?
Here at post#158 Jazzcnc explains why the usb version is better than the parallel one.
http://www.mycncuk.com/threads/10911...655#post100655

[Nr1madman]

It will!!!
Why you are not satisfied with the UC300 usb version?
Here at post#158 Jazzcnc explains why the usb version is better than the parallel one.
http://www.mycncuk.com/threads/10911...655#post100655

The usb version is more vulnerable to signal loss and interference than the Ethernet version.
Both are better than paralellport.

But I'm sure the usb version will work fine for my needs.. as I'm only running 40cm of shielded cable mounted to the motherboard it should work flawless :D

Now I have to research what other BOBs or relays I want/need for running extra equipment such as lights and dustvac and such :)

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[Desertboy]

It will!!!
Why you are not satisfied with the UC300 usb version?
Here at post#158 Jazzcnc explains why the usb version is better than the parallel one.
http://www.mycncuk.com/threads/10911...655#post100655

UC have a USB or ethernet solution, Jazz was comparing using a PC with PP for step generation. UC cards are step generators. It gets confusing because like me nr1madman is using a cheap PP BOB to connect to the steppers, switches etc.

but the connection to the PP BOB is running a lot faster than if it was a PC PP. A few people have warned that using that cheap board will limit upper performance but I was told you will be able to run at least 50khz per axis with that cheap board connected to a step generator if you need more you need a better breakout board. For my Mesa card it's £100 for the better BOB so I'm happy to use my existing BOB for now and 50khz is actually a lot depending how you set microstepping.

[Nr1madman]

UC have a USB or ethernet solution, Jazz was comparing using a PC with PP for step generation. UC cards are step generators. It gets confusing because like me nr1madman is using a cheap PP BOB to connect to the steppers, switches etc.

but the connection to the PP BOB is running a lot faster than if it was a PC PP. A few people have warned that using that cheap board will limit upper performance but I was told you will be able to run at least 50khz per axis with that cheap board connected to a step generator if you need more you need a better breakout board. For my Mesa card it's £100 for the better BOB so I'm happy to use my existing BOB for now and 50khz is actually a lot depending how you set microstepping.

And just to clarify (I have no clue)
If running 1600 microsteps and 10mm pitch screw with the standard 200steps/rev motors.. how fast will 50khz get me? :D

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[Desertboy]

And just to clarify (I have no clue)
If running 1600 microsteps and 10mm pitch screw with the standard 200steps/rev motors.. how fast will 50khz get me? :D

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LOL I'm going to run 16 microsteps ;) so 100 times less

Jazz is the man to ask but I think

50000*60 == 3000000 pulses per minute /1600 = 1875 revolutions per minute I think, times that by pitch for distance.

[Nr1madman]

LOL I'm going to run 16 microsteps ;) so 100 times less

Jazz is the man to ask but I think

50000*60 == 3000000 pulses per minute /1600 = 1875 revolutions per minute I think, times that by pitch for distance.

Hmm... I might be over thinking this!

Maybe I was thinking about 1600 pulses so 8 microsteps per step.. have to rethink :D

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[Desertboy]

Hmm... I might be over thinking this!

Maybe I was thinking about 1600 pulses so 8 microsteps per step.. have to rethink :D

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That's ok because I should have divided the last one by 200 ha ha ha forgot the steps.

[JAZZCNC]

UC have a USB or ethernet solution, Jazz was comparing using a PC with PP for step generation. UC cards are step generators. It gets confusing because like me nr1madman is using a cheap PP BOB to connect to the steppers, switches etc.

but the connection to the PP BOB is running a lot faster than if it was a PC PP. A few people have warned that using that cheap board will limit upper performance but I was told you will be able to run at least 50khz per axis with that cheap board connected to a step generator if you need more you need a better breakout board. For my Mesa card it's £100 for the better BOB so I'm happy to use my existing BOB for now and 50khz is actually a lot depending how you set microstepping.

There's more to it than just speed. Best way to I can relate it is to compare to HIGH end HI-FI Amplifier. You wouldn't dream of fitting cheap speakers to quality Hi-Fi because it would just degrade the sound and make it sound rubbish.

Cheap BOB is just like cheap speakers, your putting clean quality pulses in and the rubbish circuitry is degrading what comes out. Still comes out at same or similar speed but now it's all noisy and crackly.! . . . . Defeats the point of External controller..IMO.

The quality of the pulses you put into drive directly affects how smooth the motors work and it's clear to hear the difference when have bad setup.

[Nr1madman]

There's more to it than just speed. Best way to I can relate it is to compare to HIGH end HI-FI Amplifier. You wouldn't dream of fitting cheap speakers to quality Hi-Fi because it would just degrade the sound and make it sound rubbish.

Cheap BOB is just like cheap speakers, your putting clean quality pulses in and the rubbish circuitry is degrading what comes out. Still comes out at same or similar speed but now it's all noisy and crackly.! . . . . Defeats the point of External controller..IMO.

The quality of the pulses you put into drive directly affects how smooth the motors work and it's clear to hear the difference when have bad setup.

Thanks!
That was a good explanation..
I guess that's why a good bob costs 50 times more :)

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