The Truth About CNC Steppers Versus Servos..
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- Опубліковано 9 вер 2024
- This video covers a content creator's misinformation regarding using stepper motors for CNC robotics. I provide facts direct from a leading motor manufacturer.
Here's links for you to review these for yourself.
Here's more confirmation of the accuracy of a stepper when asked to Oriental Motor which is one of the largest manufacturer of both steppers, and servos in the world. www.orientalmo...
Here's an in depth document on stepper motors.
www.orientalmo...
Please due your research before following any content creators video as the content they produce doesn't mean they are following best practices to achieve a stable production robot.
If you have questions, or require quotes please message me direct at Storm2313@gmail.com or through my eBay store here. www.ebay.com/s...
Please do your own research before making any purchase for production robotic components. When in doubt ask, and I highly recommend messaging a vendor to test their response time.
Below is a link to my CNC components that support the issues covered in this video along with other products to support your builds.
Here's a link to my Ethernet Smooth Stepper turnkey package www.ebay.com/i...
Here's a link to my UC-400 Ethernet Turnkey Controller package www.ebay.com/i...
CNC 18/4 Double Shielded Pre-Built Motor Cable With All Required Connectors
www.ebay.com/i...
CNC 18/4 Double Shielded Built Motor Cables (3) With Dual GX-16 5 Pin Connectors
www.ebay.com/i...
CNC 3-18/4 Double Shielded Pre-Built Motor Cable & GX-16 Filtered Connectors
www.ebay.com/i...
CNC 18/4 Double Shielded Pre-Built Motor Cable & GX-16 Filtered Panel Connector
www.ebay.com/i...
CNC Double Shielded Breakout Communication Cable (Gecko Drive, Onefinity CNC) www.ebay.com/i...
CNC Cooling Fan 30-48v 60mm x 38mm (65CFM) Tool Less Mount, Fan Grill, & Filter www.ebay.com/i...
CNC Cooling Brushless Fan 30-48v 60mm x 38mm (65CFM)
www.ebay.com/i...
Terminal Splitter Kit For A/C Input 110v/220v (Gives 12 Outputs To Split Power) www.ebay.com/i...
This is my DS Flexion (Ultra Flex) cable.
CNC VFD Cable 10ft 16/4 DS Flexion For Spindle .8Kw 1.5Kw 2.2Kw 4Kw 4.5Kw www.ebay.com/i...
CNC VFD Cable 15ft 16/4 DS Flexion For Spindle .8Kw 1.5Kw 2.2Kw 4Kw 4.5Kw www.ebay.com/i...
CNC VFD Cable 20ft 16/4 DS Flexion For Spindle .8Kw 1.5Kw 2.2Kw 4Kw 4.5Kw
www.ebay.com/i...
This is my standard 16/4 double shielded spindle cable. (If you're using a cable chain, then my DS flexion cable should be used)
CNC VFD Cable 10ft 16/4 Double Shielded For Spindles www.ebay.com/i...
CNC VFD Cable 15ft 16/4 Double Shielded For Spindles www.ebay.com/i...
CNC VFD Cable 20ft 16/4 Double Shielded For Spindles www.ebay.com/i...
CNC VFD Cable 30ft 16/4 Double Shielded For Spindles www.ebay.com/i...
Here's my 22/2 double shielded accessory cable.
CNC Double Shielded 22awg 2 Lead Cable (20ft.) (Bullet Proof Protection)
www.ebay.com/i...
CNC Double Shielded 22awg 2 Lead Cable (30ft.) (Bullet Proof Protection)
www.ebay.com/i...
CNC Double Shielded 22awg 2 Lead Cable (100ft.) (Bullet Proof Protection)
www.ebay.com/i...
Here's links to the GX-16 prewired connectors discussed in the video.
CNC GX-16 3 Pin Male Panel Mount Connector Wired Silicone Leads & EMI Filters www.ebay.com/i...
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That pretty much sums up most UA-cam channels. They regurgitate what they have seen and are just learning a couple of steps ahead of their viewers.
Thank you for your support. Vince
A great video at just the right time. I’m planning a machine right now and with all the hype around servos I’ve been trying to convince myself to get them. But then I do the math and they seem to make no sense, so it’s nice to hear I’m not missing something. Also I’m using linuxcnc so I think it would make more sense to run linear scales through a mesa card if I want position feedback.
The video you showed is of an Italian company that manufactures high-end military radar and turreted targetting systems. I can tell you that those equipments need really tight tolerances and geometrical constraints in big and heavy moving metal parts, certainly not an easy task. If they manufacture at least some critical parts with stepper-based CNCs then that's quite a statement.
Thank you for your support. Vince
Great video and explanation.
I noticed when you talked about the resolution of the indicator you said it was well within a thousandth of an inch. The calculator shows it at .078 that is pretty far off .001 a thousandth of an inch.
Thank you for leaving a comment, but its apparent you missed the portion of the video where I cover the resolution of the indicator.
Its a .001mm indicator as reflected in my clients eBay message below from the video.
ua-cam.com/video/sTQ9nPsZSMs/v-deo.html
This means for every .001mm increment the axis is out by 0.00003 of an inch.
That's three hundred thousands of an inch.
I'm also not understanding how your calculator came up a .078 measurement when even if the accuracy of the indicator was Imperial. The inch increment would only have been in thousands as the measurement of his indicator never exceeded .002 variance when he was calibrating the Y axis.
Details are everything with CNC robotics, and this why its critical to pay attention.
Thank you,
Vince
You are 100% correct!
Thank you sir for your support. I really appreciate it! Vince
A quick question. I’m thinking of adding a new spindle with vfd, I was hoping to put the vfd inside my control cabinet, space is limited. Would a grounded steel sheet ( old steel shelf) between the vfd and stepper drives take care of any emi issues
Thank you for your support.
In best practice the VFD should be mounted outside your electronics enclosure due to CNC driver's signal sensitivity from the EMI produced by it.
Thank you,
Vince
if he has ACORN and servo, his setup should be realllllly good . Assuming everything is good. ACORN plus Clearpath is so hyped up by users now. My stepper system sucks . lol
Thank you for your support. Steppers, and servos really perform well by todays technology; the differences are so slight with the latest microstepping drives that most end users never see the difference.
Speed can always be adjusted by end users changing their transmissions for even more performance should they need to.
I've never had a client not be able to produce fast enough to keep up with demand.
Thank you,
Vince
Servos, if hitting an obstacle, will stop due to feedback. steppers will not. Servos will not lose steps. Steppers can.
Ed, thank you for your support, but what you typed is inaccurate.
Servo's don't detect physical obstacles in their paths, any more than steppers do.
Servos also will lose position if run outside their operating envelope.
The only difference when this happens is it will trigger a fault with their encoder.
Thank you,
Vince
Mith Bbuster for cnc channel
Thank you for your support as always John! I really miss that show. It was one of the best! Vince
why is that guys face blurred is he a criminal?
Thanks for your support. I don't believe in showing faces. Thank you,
Vince