Re: [Emc-users] Chinese 400W AC servo + driver selection

Tomaz, Here's a link to a short (really short) video showing the 400W motor on the X axis. https://youtu.be/43liAVILgHY I only ever made a video of the system running with the Z axis Knee changed to the 750W motor. In that video you can see the X still has the brushed DC Servo which

Re: [Emc-users] Chinese 400W AC servo + driver selection

Thank you for info about bergerda servos! Any idea which driver series would fit best with their 60SM-M0130MAL (400W AC servo)? > > > From: John Dammeyer > Sent: Thursday, December 16, 2021 8:30 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: Re:

Re: [Emc-users] Harmonic Drive

this man's work might be helpful https://www.youtube.com/c/Skyentific ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Harmonic Drive

On Thursday, December 16, 2021 6:50:01 AM EST grumpy via Emc-users wrote: > this man's work might be helpful > https://www.youtube.com/c/Skyentific I don't see a dl link, so I assume he is selling it if you join his support channel? But while its nice, its too big. The crossed rollers for

Re: [Emc-users] Harmonic Drive

DP is just the invers of module. 19tooth, 1.25module "should" be the right size sun gear for the 101/41 gear set, and 20tooth would be the one for the 100/40 set. But using them as ordinary planetary sets only gives a max gear ratio of about 37.9 to one running them compounded (6:1 *

[Emc-users] Chinese 400W AC servo + driver selection

Anyone here has experience with cheap Chinese 400W AC servos (and drivers) from aliexpress. Which combination to choose for on "non commercial" cnc router!? There are so many of them and not much reviews to find ... ___ Emc-users mailing list

Re: [Emc-users] Chinese 400W AC servo + driver selection

Hi Tomaz, I've moved from DC Servos with HP_UHU drivers to Bergerda 400W AC Servos on X and Y, a 750W on the Knee and 1.8kW for the spindle. Couldn't be happier with price and service. Especially service/support. The problem with Aliexpress is you are dealing with little resellers (perhaps

Re: [Emc-users] Chinese 400W AC servo + driver selection

My first recommendation, is to buy from someone who is selling the drive, motor and cabling as a set. And that they offer a cable option in a length suitable for your application. Making encoder cabling is a crappy job and you can usually get ready made cables for less than your cost for bulk

Re: [Emc-users] Chinese 400W AC servo + driver selection

Tomaz, If you're in the US, then DMM-Tech is a company that has been selling a chinese drive for several years. https://www.dmm-tech.com/multiaxissolutions2.html Mark On Thu, Dec 16, 2021 at 11:44 AM Tomaz T. wrote: > Anyone here has experience with cheap Chinese 400W AC servos (and drivers)

Re: [Emc-users] Harmonic Drive

On Thursday, December 16, 2021 1:10:30 PM EST John Dammeyer wrote: > A pencil line on both outer ring gears. The Blue 100 gear held tight. Turn > the Red Planetary cluster shaft and the Green 101 gear turns slowly. > > The assembly needs better mounting before backlash can be verified. This >

Re: [Emc-users] Harmonic Drive

Dunno why every CAD program with a gear wizard, generator etc doesn't do both. https://evolventdesign.com/pages/pitch-calculator On Thursday, December 16, 2021, 12:56:53 AM MST, John Dammeyer wrote: The AlibreCAM Gear generator doesn't accept module.  Instead it wants number of teeth

Re: [Emc-users] Harmonic Drive

The pinion pairs are 1 tooth different in size (40 and 41). I think If I were printing them I would print them as one piece instead of screwing them together. All three sets of pinions on the triple pinion design, would use the same angular offsets so all 3 pairs of pinion gears would be

Re: [Emc-users] Harmonic Drive

On Thursday, December 16, 2021 5:03:12 PM EST Todd Zuercher wrote: > The pinion pairs are 1 tooth different in size (40 and 41). I think If I > were printing them I would print them as one piece instead of screwing them > together. All three sets of pinions on the triple pinion design, would use

Re: [Emc-users] Harmonic Drive

In Alibre it's a python script and the function AddGearNP appears to need Pitch Diameter . == # default settings NumberofTeeth = 20 PitchDiameter = 30 PressureAngle = 20 Thickness = 3 Win = Windows() ScriptName = 'Gear Generator' # create dialog window

[Emc-users] LinuxCNC 2.8 Downloads

Hello, I am trying to download  linuxcnc 2.8 (or the newest version) when I try to download the "LinuxCNC 2.8.2 Debian 10 Buster PREEMPT-RT ISO "  I get "/tmp/0Pe2bVnE.part could not be saved, because the source file could not be

Re: [Emc-users] Harmonic Drive

On Thursday, December 16, 2021 5:03:10 PM EST John Dammeyer wrote: > > From: gene heskett [mailto:ghesk...@shentel.net] > > Subject: Re: [Emc-users] Harmonic Drive > > > > On Thursday, December 16, 2021 1:10:30 PM EST John Dammeyer wrote: > > > A pencil line on both outer ring gears. The Blue

Re: [Emc-users] Chinese 400W AC servo + driver selection

Hi Tomaz, I've purchased some servo motors from the RTelligent brand. Pretty good ones but I only tested it so far. The manuals are clear and the drives and motors are really well built. As Todd recommended, it's better to purchase the entire set from one seller. El jue, 16 dic 2021 a las 17:35,

Re: [Emc-users] LinuxCNC 2.8 Downloads

I clicked on that link and had no problem downloading it. I now have both 2.8.0 and 2.8.2 in my downloads folder. Is it failing when you try and install? John > -Original Message- > From: R C [mailto:cjv...@gmail.com] > Sent: December-16-21 5:42 PM > To: linuxcnc-users-list > Subject: