Started building my first (Joe's) router

[bp092]

I remember seeing your controller earlier on it looks cool. This weekend I will figure that out, for now, it's ghetto wiring for testing and then when I'm sure stuff works I will build a nice little home for it.

[David Da Costa]

Thanks Joe. What voltage should the Cap be? For example would this one be okay or should it be 24V

http://www.mouser.com/search/Product...6DY683F050DL2A

[David Da Costa]

More dumb questions, I assume I need a 10 amp fuse between the AC live and the transformer (transformer is 24v 10amps) and a 2amp fuse between the motor and psu (motor current in unipolar is 2 amps) or should the fuses be slightly bigger then the amps drawn?

Do I need the diode in the diagram for EMF from the motor if the fuse blows. The diagram say for a bipolar motor but mine is wired unipolar. If I do need one, what size.

Thanks

[bp092]

david, we should have an online meet sometime, setup a simple java chat, call it question time and hammer joe all at once?.. lol I could arrange and host it, or setup some kind of usergroup website for joe's build outside of the zone, could help in that too

[David Da Costa]

I'm up for that - good idea. And lets makes sure the likes of Jay etc are involved.

[bp092]

I can make it happen, sometime this weekend we can have a first just to test it out. Would be cool to have a usergroup and get everyone involved, sharing stuff about their router, tips tricks etc.. I just get the feeling that the dozen or so people on the zone logging their joe 2006 design are not the only ones that have built or are running joe's design.

[joecnc2006]

IRC channel maybe.

[joecnc2006]

Originally Posted by David Da Costa More dumb questions, I assume I need a 10 amp fuse between the AC live and the transformer (transformer is 24v 10amps) and a 2amp fuse between the motor and psu (motor current in unipolar is 2 amps) or should the fuses be slightly bigger then the amps drawn? Do I need the diode in the diagram for EMF from the motor if the fuse blows. The diagram say for a bipolar motor but mine is wired unipolar. If I do need one, what size. Thanks

yes 10a fuse for trans., i do not have a fuse from motors to psu, it goes through the controllor board.

[Madclicker]

Originally Posted by David Da Costa Thanks Joe. What voltage should the Cap be? For example would this one be okay or should it be 24V http://www.mouser.com/search/Product...6DY683F050DL2A

That's overkill for a 32V PS. Use this:

Smaller Cap

[joecnc2006]

Originally Posted by Madclicker That's overkill for a 32V PS. Use this: Smaller Cap

I'm trying to find my formula, if i remember i figured 28,000uf was enough, but the larger the uf's the smoother the power ripple will be.

Edit: I found the following info:
A bridge rectifier = 2x your volts, so for a 24v trans, use 50v bridge rec. 25amp or higher.

your cap should be 2,000uf x your amps, so a 10a would need 20,000uf.

and also install a bleeder resister across your cap to drain power when turned off.

I would lean towards this one, just to kick the voltage up some from the 40, for the price, to allow for expansion in voltage.

50v cap Never mind that is order of atleast 49 so madclickers is a good one.

[ccsparky]

Hey David!

Congratulations on your success and thanks for your support and help with my questions, it's really appreciated!

Your new controller enclosure looks very nice! Very professional looking!
I've got the same one I bought for my HobbyCNC kit only in black.
Are your labels clear stick on or did you engrave them?

God job!

[David Da Costa]

Originally Posted by bp092 I can make it happen, sometime this weekend we can have a first just to test it out. Would be cool to have a usergroup and get everyone involved, sharing stuff about their router, tips tricks etc.. I just get the feeling that the dozen or so people on the zone logging their joe 2006 design are not the only ones that have built or are running joe's design.

Just let me know, I will be there