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Chinese 1.5kW, water cooled spindle and controller.

October 20, 2017, 6:07 am
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First of all, I apologise if I have come to the wrong section in which to make this post.

I am working on my design for an automatic tool changer that requires the tool holder to be slowly revolved by a low speed DC motor in relation to the spindle in order to locate in a key way. The other alternative, which I would prefer, would be to turn the spindle slowly either by the aforementioned geared motor or by way of a macro in Mach3 until the new tool locates properly.

If it is not possible to turn the spindle slowly by way of a macro (around 5 - 10 rpm), is it possible that someone with experience of the spindle type could advise me whether the spindle is free to turn when not being turned on by the controller? The spindle turns easily when not connected to the controller, but I wondered if there was some sort of braking system involved when connected to a controller but not running.

Your help in this would be much appreciated.

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Help figuring this motor power out

October 20, 2017, 6:57 am
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Hey! I got a 2001 Multicam router. Its big with 2x3 meter workarea. Im currently running stock steppers and was thinking that id replace them for clearpaths or DMM-techs ac servos.
Going with Nema34's would mean drop in replacements.

I have never owned anything with servos so im a bit of a novice.
They say the clearpath HP models will have 8-15 times the power of similar sized steppers, but I dont really get it. Not for my application. But im no expert so help me here.

The machine runs r&p on Y and acme strew on X and Z. The acme screw has 25mm pitch so 1 turn equals 25mm travel. The motor is connected with a belt and 1:1.5 reduction.

Machine specs says cutting (and rapids) at 600IPM. So X motor does 900rpm at max travel speed, (900/1.5) 600rpm on screw wich gives 15240mm or 600ipm.

Looking at the torque curve for my current steppers. see attached(It states nm and rps in the pic) When i look at that i basically see about 250 watt in my rpm range. correct me if im wrong.

My stepper: @ 600rpm, about 4nm/556,4oz-in = 247watt @ 900rpm, about 3nm/424,8oz-in = 283watt.
DMMs AC servo: @ 600rpm, about 2,4nm/339,8oz-in = 150watt @ 900rpm, 2,4nm/339,8oz-in = 226watt
Clearpaths @600rpm, about 2.8nm/396,48 = 176watt @ 900rpm, 2,8nm/396,48oz-in = 264watt

Clearpath motors in example (CPM-SDHP-3432S-ELN) Rated at 2.8nm and 970rpm (1130 max).

Looking at the CPM-SDHP-3441S-ELN. The highest continuous torque nema34 if im not mistaken.
478.5oz-in of continuous torque and rated rpm of 730rpm(840rpm max) do 258w at rated speed,730rpms. And lesser when the rpms go down.

How could the clearpaths give 8-15x more power ? or even twice the power ? Should I take the peak values into consideration ? I seem to be able to make my steppers loose steps when I take big deep cuts at "high" rpms, a cut like that would cause the servos to need to be in peak range for longer than a second im assuming, and it just feels wrong to do calculations with consideration to the peak values?

If I rebuild/gear down (wich i prefer not to) and let the DMM's run 2000/3000 rpm then id get 500/750watt output. If im not confusing myself.

Im wrong somewhere or am i just missing something ? help me here! Is replacing my steppers not worth it unless i get DMMs with more gear reduction or go to bigger frame sizes ?

Ps.Ofcourse id like to have servos for the smooth quiet high resolution awesomness too, not just power.

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Need Help! Setting up Nema 34 stepper motors

October 20, 2017, 7:55 am
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How do I choose the right amperage setting on the dip switches? Right now they are set at7.8 amp. Dip switches 1234 are off 5678 are on set to 400 steps/rev.

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HELP__ How do i GET THE SPINDLE TO SPIN--HELP

October 20, 2017, 8:06 am
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:confused:I have changed out my Chinese control box for a Control box kit from planet-CNC and all went well until I got to the SPINDLE where does this connect to the PLANET Box I should mention it is only two wires for the Spindle motor please please help.
Jim

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Deleting Tool Paths

October 20, 2017, 8:56 am
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I generated my first set of toolpaths with the demo SW and want to try a different strategy.

How can I delete the paths created to try a different approach?

I have tried selecting them then deleting, check the help for deleting paths, but can't find the right thing to do there. Just want to start over using the same Rhino model.

Appreciate any help with the question or a point in the direction of where to look it up!

Thanks!

Bruce

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Newbie Problems with cutting the entire tool path(?)

October 20, 2017, 9:08 am
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So we just built and set up a CNC kit from CNC Router Parts, and we're using VCarve Pro and Mach 3 to run it. I'm a super newbie here and this is my first time running a CNC and obviously it's not going great.

We're doing a test run of the machine by just cutting out letters for a sign, using an end mill bit and just a cut through profile. When I run all the vectors through VCarve the 3d preview shows it coming out perfectly and the correct tool paths and everything.

Then I load the generated G-Code into Mach and turn my machine on, and it does just the outline of one letter (in the incorrect spot of the material) and stops after the outline.

Besides needed to zero everything correctly (I'm assuming this is the issue with incorrect placement in material), what could I be missing and why is my machine stopping?

Thanks!

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Need Help! Problem with printing out tool lists and run times

October 20, 2017, 9:44 am
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Long time (20 years) Surfcam user. Had a virus last week and now can't get the tool list and machining times to pop up so I can print them out. It acts like it is doing something, but nothing happens.
The printing function of the main screen and the posts are working just fine. Same problem with current version and all of the older versions, I checked. Any thoughts?

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Haas Smart Amp for 4th axis

October 20, 2017, 9:45 am
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I need to know if the Haas Smart amp can be used for brush 4th axis'. I have a machine that I want to put my 4th's on but don't know what 4th drive it has, or should I say I don't know if it is for brush and brushless drives. I have so many different drives that I hope one will work for a fourth axis or bth. I have a 4015M-C, a 4015J-B, and 4015J-a, and a smart amp available.

Thanks for your help.

Mike

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Need Help! Agie Charmilles AGIETRON INNOVATION 2

October 20, 2017, 11:04 am
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Hello, is there anyone who knows anything about this RAM edm machine, with AGIEVISION built-in

Im looking for some manual , ''making first part'' tutorial , something simple step by step just to make my first part with that machine.

If anyone can help, im very thankfull!

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LY-usb100 parallel adapter

October 20, 2017, 11:10 am
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Hi,
Can anyone point me to the correct Mach3 plugin for the LY-USB100 parallel port to usb chinese adapter?
Cheers

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What kind of motor is been used here?

October 20, 2017, 11:41 am
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Hello!

I am starting to design a transplanting machine and looking at some commercial brands for reference.

The picture is from a TTA PackPlanter machine which seems to use servo motors to move the grippers. I attached the picture.

Would you know what kind of motor it is or what the component inside the red circle is?

Thanks!

Attached Images
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G0704 vs BF20

October 20, 2017, 12:12 pm
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Hi guys,

I've seen the Grizzly g0704 also labled as a BF20, are they the same machine? Im shopping for cnc kits and amazon doesnt have any g0704 kits but under bf20 they have all the ballscrews mounts etc. Wondering if its the same thing and if I could buy the cnc parts for a BF20 andfit on my g0704

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Unexpected Results

October 20, 2017, 12:17 pm
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I am working on a carve that I thought should be fairly straight forward, but for some reason am not getting quite what I expected. Here’s a picture of the model, using MeshCam to generate the toolpath. And also a picture of what was carved. Ultimately it will result in the correct final product, but seems like it is working harder than it needs to. It makes two rings in the hole, one is the outer that will be the correct final product. I’m confused by the inner ring though. It seems like this is making a nicely finished inner piece, but that piece is actually just scrap, I only care about the hole. Is there maybe a setting that can get rid of that? Or an explanation as to why it happens? Seems like the overall carve should not take as long if it’s not making that inner ring. Any advice would be appreciated! Thanks!

Attached Images
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Need Help! Best Text to use for Vcarving

October 20, 2017, 12:36 pm
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I am working on a cedar chest for my wife and I want to engrave txt into the lid. As a machinist by trade I usually use a simple font for engraving, but for this project I want to use something a little more fancy. I know there a people who do this sort of thing on here and would appreciate some suggestions.

Thanks

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Need Help! Best Text to use for Vcarving

October 20, 2017, 12:36 pm
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I am working on a cedar chest for my wife and I want to engrave txt into the lid. As a machinist by trade I usually use a simple font for engraving, but for this project I want to use something a little more fancy. I know there a people who do this sort of thing on here and would appreciate some suggestions.

Thanks

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DIY Steel mill

October 20, 2017, 3:07 pm
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Hi!
i didn't really know where to post this but i have started plans for building my own cnc machine.
i would like to make it able to cut steel, but it doesn't have to be large.
the frame i designed is about 600mm x 500mm x 300mm. Now my question would be, what type of spindle would be best? does it need a high RPM or is a low one better?
And i thought about using a 10mm leadscrew, combined with linear rails. would this be able to take all of the force?

Thanks!

Anton.

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Need Help! Vision 5252 Router Engraver needs repair!

October 20, 2017, 4:50 pm
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There is communication problems between my engraver and the computer.

I called Vision and they have no field technician.

Any one can help? I am in Whittier, California

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Mach3 Handwheel?

October 20, 2017, 5:33 pm
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I am looking for a handwheel, preferably similar to this one but wired.

https://m.ebay.com/itm/CNC-6-Axis-USB-Wireless-Mach3-MPG-Pendant-Handwheel-Controller-for-CNC-Machine-/142221465180?epid=1164873445&hash=item211d0f565c%3Ag%3A2d8AAOSwEzxYZbgn&_trkparms=pageci%253Af3b561bf-b5c3-11e7-8466-74dbd180c3aa%257Cparentrq%253A3b07c97f15f0aa486b707fb2ffffbd2b%257Ciid%253A6

Does anyone know if they make one, and if so where can I find it?

Can anyone recommend an MPG handwheel that works well with Mach3?

Thanks
Dave

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they will be OK

October 20, 2017, 5:33 pm
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Need Help! Best Text to use for Vcarving

October 20, 2017, 12:36 pm
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I am working on a cedar chest for my wife and I want to engrave txt into the lid. As a machinist by trade I usually use a simple font for engraving, but for this project I want to use something a little more fancy. I know there a people who do this sort of thing on here and would appreciate some suggestions.

Thanks

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