Messages

251

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: May 11, 2009, 12:20:24 PM »

Yup, I'm using 7 geckos.  Two of them share the same signal but send out their windings oppositely to balance the load of the x axis.  A close example to what I'm doing is:

http://www.cnc-toolkit.com/gantry_router.html

My build is a bit more beefy than this one, but the principals are the same.  The 6xth axis will be a rotary table that I mount to the table.  I'll add that sometime later this year.

Heh, you don't want to know the price.  It's way more than I expected it would be;)

Barry

252

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: May 11, 2009, 10:52:15 AM »

I've got a box of heat sinks that I can add to the back.  Thanks for the suggestion.  I'm not sure what you mean by index vs continuous.  I'm still learning the stepper lingo;)

I'm planning on using Mach  3 initially for path generation.  It does do that, doesn't it?

Barry

253

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: May 10, 2009, 10:35:08 PM »

Thought I'd show some progress.  Here's the start of my control box.  The breakout boards aren't in there yet, nor are the two other geckos, but it's coming along.  I've modeled the machine too, and will soon be ordering parts for the frame.  Wow, these things really add up!



Barry

254

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: April 19, 2009, 04:37:07 PM »

Thanks, it's all so complicated the first time building, I'm sure you'll agree.  I did send a note to keling to change to the 975watt.  That saves me 5 amps too, which works better I think too, less dedicated wiring.

Barry

255

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: April 19, 2009, 04:07:05 PM »

This one seemed the best value, however, if you recommend another, I'm all ears.  I'm choosing from:

http://www.kelinginc.net/SwitchingPowerSupply.html

I was choosing the 65v since that was 15 times the power of the larger motor when set in series (smaller number).  Although you are recommended parallel, which I may do as well.  I do see they offer a 975w which is only 15A, which may be better?

Both power supplies have a 5v dc output which is great to power the breakout board, smooth stepper.

Barry

256

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: April 19, 2009, 11:58:08 AM »

Thanks for your advice.  I ended up ordering a 65v, 1300 watt power supply instead.  Based on your advice that's between 15 and 18 times for the large and small motors I have.  It should all be good now, thanks;)

Barry

257

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: April 18, 2009, 07:24:07 PM »

I'm sure a bunch of you will say, duh, what a stupid question, but this is my first time building a cnc machine, so I'm trying to dot all my i's and crossing my t's.

I just ordered the power supplies, and wanted to verify that these will indeed do the job.  It's a lot to think about.  I'm using Gecko 203v's and they have a power supply of 15v to 80v, the motors I'm using are two fold.  5 of them are 4.2 v/4 amp, two of them are 3.36 volt/2.2 amp.  I'm wiring them all in series to be lower power/heat.  The power supply I picked out for these is a tdk lambda sws600 24v, 25amp, 600w amp.  I believe this works for all of them, yes?  I will just need to add a limiting resistor on the geckos to limit to 4.2v and 3.36 volts on their way out.

The 2nd power supply is for the 5 volt, 1 amp power supply and only powers 1 device.  That was a bit simpler;)\

Can you guys tell me if I'm on the money or off my rocker?

The spindle power supply is going to be from the manufacturer of the spindle so they'll tell me which one to get there.

Barry

258

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: April 10, 2009, 06:25:59 PM »

I just received the B/C drive unit from Doughty Drive.  That is one industrial piece of engineering there.  I can't wait to use it!

259

Mach3 under Vista / will Mach3 work under Vista 64 bit yet?

« on: April 09, 2009, 02:45:28 AM »

Hey folks, will Mach 3 work under Vista 64 bit yet?  I've got a couple machines that have Vista 64 bit, that would be a major pain to downgrade, but I will if I have to;).

Anybody have any success in 64 bit?

Barry

260

Show"N"Tell ( Your Machines) / Re: New Build 6 axis CNC first timer

« on: April 08, 2009, 05:07:20 PM »

I'm getting an HSD spindle.  It's 2 HP, only weighs 3.5 KG and air cooled.  It's the right kind of performance vs price vs weight that I need.  Anything heavier would break my design.

Here's the link to it:

http://www.hsd.it/prodotti.asp?co_id=1020&service=

MT1073
Y6162Y0010

I'm told it'll take about 8 weeks to be in though, damn!

Barry