Hi John, Not really. That $100 is for the pendant only. The 3 axis controller is around $550.
A lot of AliExpress sellers now add multiple products to a single listing. They have a relatively cheap item there that makes the item you are after appear cheap. That said you can get a similar 2 axis Chinese controller for about 1/3 that price. Cheers Peter Homann - (from my mobile) http://www.homanndesigns.com > On 6 Aug 2023, at 5:17 am, gene heskett <ghesk...@shentel.net> wrote: > > On 8/5/23 14:45, Martin Dobbins wrote: >> It makes me wonder which operating system they put on that Chinese >> controller, and what motion control system. >> Martin >> ________________________________ >> From: John Dammeyer >> Sent: Friday, August 4, 2023 7:41 PM >> To: 'Enhanced Machine Controller (EMC)' <emc-users@lists.sourceforge.net> >> Subject: Re: [Emc-users] Beaglebone black latency >> My biggest issue with the Xylotex BBB Cape for CNC was that the logic for >> ESTOP was inverted. ESTOP was a N/O switch so if a wire was broken you >> wouldn't find out until you tried to save a body part from being injured >> with the ESTOP. >> But back when a BBB was around $50 and a cape around $25 you had a 3 axis >> system. Obviously a break out board of some sort was needed but that's true >> for MESA or any other type of interface just like motors and switches are >> needed too. >> The nice thing about these small systems with a small HDMI screen is that >> they don't overwhelm the space taken by a small lathe like a 7x12 or Unimat >> DB200. I don't want a full size screen, mouse and keyboard plus a PC clone >> for my DB-200 which looks a lot like this one. >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fi.redd.it%2F83lxxjam0yj71.jpg&data=05%7C01%7C%7Cdec28113c0d745ae7e5d08db954d6546%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638267931883275463%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=l04m1ookT8TmrWx%2F8azPP2X2qqAyxgSJbezUEI7EZJM%3D&reserved=0<https://i.redd.it/83lxxjam0yj71.jpg> >> For $100 Cdn free shipping I can get a Chinese Controller. >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.aliexpress.com%2Fitem%2F1005005195839565.html&data=05%7C01%7C%7Cdec28113c0d745ae7e5d08db954d6546%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638267931883275463%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=O3eRaBFYdAVqxPxwCTL9JCUiFaYmhWTcGtwJKa%2BJFT4%3D&reserved=0<https://www.aliexpress.com/item/1005005195839565.html> >> But I'd rather have a Linux based system or my ELS. >> John >>> -----Original Message----- >>> From: Chris Albertson [mailto:albertson.ch...@gmail.com] >>> Sent: August 4, 2023 5:20 PM >>> To: Enhanced Machine Controller (EMC) >>> Subject: Re: [Emc-users] Beaglebone black latency >>> >>> I think the BBB was popular because of the twp PRUs. These are >>> programmable processors that are separate from the CPU. So you can get >>> very accurate real-time pulses out even with poor latency under Linux. >>> >>> However, this does require programming the PRUs. Machinekit had a HAL >>> unit for the PRUs. I don�t know if LinuxCNC has this or not. >>> >>> >>> >>> >>>> On Aug 4, 2023, at 11:18 AM, andy pugh <bodge...@gmail.com> wrote: >>>> >>>> On Fri, 4 Aug 2023 at 01:48, alanmthomason--- via Emc-users >>>> <emc-users@lists.sourceforge.net> wrote: >>>>> >>>>> Hi There.I'm trying to work through setting up linuxcnc on a beaglebone >>>>> black. I've run the latency-test, with results that are not looking >>>>> good.has anyone else run this test with a Beaglebone black? Is there any >>>>> way to improve results. >>>> >>>> I think that when Machinekit were fond of the Beaglebone they tended >>>> to run it headless. I can't recall whether that was just poor graphics >>>> performance in general, or whether it was due to latency issues. >>>> >>>> You could try installing the (old) Machinekit image to see if the >>>> latency with that kernel is better. >>>> >>>> -- >>>> atp >>>> "A motorcycle is a bicycle with a pandemonium attachment and is >>>> designed for the especial use of mechanical geniuses, daredevils and >>>> lunatics." >>>> � George Fitch, Atlanta Constitution Newspaper, 1912 >>>> >>>> >>>> _______________________________________________ >>>> Emc-users mailing list >>>> Emc-users@lists.sourceforge.net >>>> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=05%7C01%7C%7Cdec28113c0d745ae7e5d08db954d6546%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638267931883275463%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=qTWdux60ZVNVGu500hGv5nTpLIMlYDdL3Zs26yr6p%2Bc%3D&reserved=0<https://lists.sourceforge.net/lists/listinfo/emc-users> >>> >>> >>> >>> _______________________________________________ >>> Emc-users mailing list >>> Emc-users@lists.sourceforge.net >>> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=05%7C01%7C%7Cdec28113c0d745ae7e5d08db954d6546%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638267931883275463%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=qTWdux60ZVNVGu500hGv5nTpLIMlYDdL3Zs26yr6p%2Bc%3D&reserved=0<https://lists.sourceforge.net/lists/listinfo/emc-users> >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users&data=05%7C01%7C%7Cdec28113c0d745ae7e5d08db954d6546%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638267931883275463%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=qTWdux60ZVNVGu500hGv5nTpLIMlYDdL3Zs26yr6p%2Bc%3D&reserved=0<https://lists.sourceforge.net/lists/listinfo/emc-users> > This one runs at 1/4 of the speed of a std linuxcnc install. I'd skip it and > its ilk. Not fast enough. >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > Cheers, Gene Heskett. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > Genes Web page <http://geneslinuxbox.net:6309/> > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
