Thread: best stepper driver???????
Are there no reliable "all in ones" ?... It just seems alot of accessories just for one job.
I can solder and repair boards at a push, but I'd rather just plug it into my pc/cnc , turn it on, and use it without all the whistles and bells. Maybe I am just lazy ?3 axis CNC/router / Alu profile frame....25mm Alu Cutting bed X=500mm Y=300mm Z=110mm.....Supported 25mm X rails ....Supported 20mm Y rails....Supported 20mm Z rails.....2.2kw Chinese WC spindle......"USB Breakout Board Interface 200KHz"....M542 Drivers..SY60STH86-3008BF Motors...running....Mach3 / Cambam / Emachineshop.
Only all in 1 is the Gecko 540
G540 4-Axis Motor Control
Unfortunately what with taxes etc it doesn't come cheap
Gecko will not sell direct to you as they have a UK agent, Charter controls who's web site is down at the moment.
You can but off Ebay.com for about £190 plus £30 shipping but expect to get hit for about £40 duty on top of this.
You can connect a lot of wires for this price plus if it does go wrong you are faced with shipping it back etc.
Separate units are far betterJohn S -
The "all in one" that I had was fine for about 3 months. We have power surges here every week and I think this is what fryed it.http://www.easy-cnc.com/3axisdriver.html
The one that you mentioned.... Is it likely to go wrong if wired correctly ?
I was going to buy this one ; CNC Router DIY Kit 5 Axis Breakout Board + 3x M542H Stepper Motor Driver 1A-4.5A | eBay
If it is compatible with my motors and PSU. Seems simple enough, and in cases
Last edited by dudz; 24-03-2013 at 03:41 PM.3 axis CNC/router / Alu profile frame....25mm Alu Cutting bed X=500mm Y=300mm Z=110mm.....Supported 25mm X rails ....Supported 20mm Y rails....Supported 20mm Z rails.....2.2kw Chinese WC spindle......"USB Breakout Board Interface 200KHz"....M542 Drivers..SY60STH86-3008BF Motors...running....Mach3 / Cambam / Emachineshop.
However if you buy three of the drivers i linked to [ which are exactly the same ] for £24.76 = £ 74.28 and this breakout board and lead
Upgraded 5 Axis CNC Breakout Board Stepper Motor Driver + 5V USB Cable + Mach3 | eBay
Look familiar ?
For £10.99 you will have spent £85.27 to get the same thing.
However if you insist on spending more then send me £140 and I'll bung 3 drivers, a lead and the breakout board in the post first thing tomorrow.
I don't mind and you get to save £9.82John S -
John i have a question for you if you will.
A member who i dont think is around anymore once said to me that, if a motor is rated at 3a per phase that you only need to make an allowance for this of about 50% because the motor is unlikely to ever require its full amps rating, I think he did say its posable but you would have to be seriously working the motor for that and its just not likely.
Is that true?, also dose a motor draw more current when its doing rapids vs when the machine is cutting into stuff or dose it draw a steady amount consistently through all operations?
Lee the accepted figure is 2/3 for a parallel wired motor and 1/3 for a series wired motor.
These are figures that Marriss Fremanis at gecko drive came up with and are repeated as law.
So a 3a motor in parallel take 2a and 1a in series.
However I have had clamp ammeters fitted to power supply leads and running a system under rapids and loads i have never seen these figures, they have always been far less.
In fact in many cases the figures have been very small, far smaller than I would have imagined so the 50% is a far more acceptable figure.
One machine I used to convert I used 650 VA transformers at 50 volt AC, in a cost cutting exercise, due to rising copper costs, I dropped to 500 VA and saw no difference, a drop to 400VA still didn't make a difference but going to 330 VA did,
So the drop from 650 VA to 400 VA halved the transformer cost.John S -
The Following User Says Thank You to John S For This Useful Post:
Is there any benifit from having a USB instead of Parallel port ? ...I found this 3 Axis CNC USB Card Mach3 200KHz Breakout Board Interface Speed: 48M Win 7 | eBay
I know it is more expense, but is it better quality ? and are there benifits ?
Last edited by dudz; 24-03-2013 at 05:54 PM.3 axis CNC/router / Alu profile frame....25mm Alu Cutting bed X=500mm Y=300mm Z=110mm.....Supported 25mm X rails ....Supported 20mm Y rails....Supported 20mm Z rails.....2.2kw Chinese WC spindle......"USB Breakout Board Interface 200KHz"....M542 Drivers..SY60STH86-3008BF Motors...running....Mach3 / Cambam / Emachineshop.
There is an argument that PP port equiped computers are dying out, it is true but there are still 1,000's about for not much money that the argument isn't valid.
I buy Dell DX260 in bulk.
No mine but this is how they are offered, cost about £20 each with an XP license on them.
However we are trialling a couple of the USB boards, first one will be later this month and I expect that the price will drop.
The one shown is from a different company that the ones that developed them,John S -
Ok.... I bought 3 of these , CNC Micro-Stepping Stepper Motor Driver 2M542 Bi-polar 2phase 4.2A Switch | eBay and I bought this ; 3 axis CNC USB Card Mach3 Breakout Board Interface 200KHz windows2000/xp/vista | eBay
I could of bought the cheap one but I really like the idea of using the USB instead of the PP port. I will let you know how I get on. Thanks both of you for all of your help.
Last edited by dudz; 25-03-2013 at 08:42 PM.
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