Important notes!!! Note 1: there are some limit switches that have different pin positions. During the cable preparation and connection you must be sure that the Common pin and Normally Open pins are connected to the board. The other pin is not used. If you don't do this your limit switch may not work properly. Note 2: you should regulate the stepper driver current and set the micro-stepping properly. The first depend on the motors (see the datasheet) , while for the micro-stepping our actual settings are 1/16th for x and y and 1/2 for z. Note 3: remove the CAPS from USER and RESET buttons of NUCLEO-F401RE since you may inadvertently touch them with the shield. That would cause undesired effects, for example the board being kept under reset.
Are you willing to publish full bill of materials? There is one on bitbucket but it has less than half parts listed. I'm eager to build this baby, but not in current state - there are to many unknowns...
The Z motor in your BOM (the LC1574W-04) has a rated operating voltage of 4 VDC. What was your motivation to choose the 4 VDC version over say the LC1574W-12 one that is rated for 12 VDC? Correct me if I am wrong, but driving the 4 VDC version with 12 VDC will saturate the coils quicker but also draw more power turned into heat without much benefit. Or am I missing an important technical detail?
@@rayly80 Hi it cost me about 200$ but I already had many of the parts at home. If I had to buy all parts I would estimate about 350-400$ which on the other hand would include a Makerbeam Pro set for further projects. If you have to go as cheap as possible I would redesign for 2020 beams and nema 17 motors and a different z axis stepper.
@@TheRcEngineer Thx for the recommendations. Yes, there are some questionable parts in the design. I'm sure the community will come up with a lot of nice designs in the future.
I can't find the "Z-axis motor cable holder 3D printed" anywhere among the STL files. Was it forgotten or am I having trouble seeing? Using a standard nylon cable mount for now, but yours will look nicer :-)
@@TheAntPCBMaker Thanks; I found it hiding tucked within the footprint of the larger, non-sliding Core-XY belt mounting piece! (I think I may have thrown it out by mistake when I first printed those parts with too many supports and then just reprinted individual objects separately.)
Great project, can't wait to build my own. I'm busy to resurrect an old 3d printer to print the parts. In the meantime looking for the right parts. I got my hands on 2 lc1574W-04-025. Maybe someone has an extra 2632 motor for trade?
I have the electronics working but I am unable to get bcnc to control the spindle. The esc is connected as per the pdf. The spindle control buttons do not work though. I tried the esc with a servo tester and it is working. I am using the latest source from the bitbucket repository. What is the spindle range? Did the Ant Team make changes to the code so grbl would output ppm? Info on ppm with grbl is very limited on the web. I put it on the scope an it doesn' t look like ppm. Maybe I missed something?
Hi, i didn't realize that there was one file missing in the repo. There were default parameters for the spindle, so it cannot work with the fw binary 30. There is now the fw binary 35 with correct spindle parameters for AFRO20, download it in your nucleo, then connect to the serial and give the command $RST=$ This will wipe your parameters and restore the default ones of the uploaded fw. We will give you this and other details in a more ordered format, for now i just wanted to answer your request.
Soo... We're engraving/milling Metals ( the Copper Layer of the PCB ) less than a hand length away of what is basically an *IP00* ( en.wikipedia.org/wiki/IP_Code ) protected Control Board holding electricity and a Brushless Motor with exposed bearings and stator cavities? Bold move if I may say so! =)
I think you are required to stand over this this while it is operating. I am assuming since there is no housing, you need to use either a vacuum or mineral oil so the copper FR4 doesn't go flying all over the place. Theres a lot of questions unanswered when you first start looking into this. I guess that is the risk you run when you build a device at 1/10 of the cost of anything remotely close to it's abilities. I still like the open source aspect and not being beholden to a platform.
Hey, i have a problem here. I really couldnt find the lc1574w-04-025 in new conditions and the one i got has a different connector with 6 pins (Still only 4 cables). So i need to cut it down and use duponts on my own but i cant figure out in which order. If you look on the side of the motor with the cables they are from left to right black, green, white, red. In which order i need to connect them to the CNC shield? Any help would be aprecciated! My thaught is, that the order of the A4988 is from top to bottom : 2B 2A 1A 1B and this data here: www.haydonkerkpittman.com/products/linear-actuators/can-stack-stepper/15mm-15000 show that coil one is white + red - and coil 2 green + black - so that from top to bottom i would need to connect red white green black white but im really not sure and dont want to destroy the part i needed over a month to find. Please help me out :/
@@TheAntPCBMaker Exellent news, I had seen these but did not think the spec mached up to the discontinued one, thank you for your input, as always keep up the great work.
I'm tempted to try detection and Trinamic drivers in my build instead if limit switches. Unless there's a reason that would work worse here than in a ordinary 3D printer?
As far as I know Stall detection is quite difficult on a coreXY. Because for a straight line in X or Y direction both motors will move. Would be cool though.
@@catwalker96 Hadn't thought of that. But maybe that could be handled like this: Under normal operation no axist should trigger the limits, so if any of them trigger you stop operations. Homeing is done one axis at the time. Would require firmware changes, but theoretically workable, right?
And again I bought the wrong part. The Z limit switch should be a MINI micro switch (hole spacing about 7mm). I bought a more common one with 10mm hole spacing. For now, I will build an adapter. But maybe this should be noted in the BOM.
Hi, there is an already compiled version here: bitbucket.org/compactpcbmaker/cpcbm/downloads/ To compile you need python 2, an arm-none-eabi-gcc toolchain and a make gnu or similar in your path. then from the firmware folder you can run make bin.
This comment is perhaps too obvious, but my fan has some recesses that allow the M3 socket heads to sink flush with the top of the fan, so I had to switch to M3x12mm SHCS instead of the specified M3x16 lest the extra 4mm do something nasty to the stepper drivers.
Important notes!!!
Note 1: there are some limit switches that have different pin positions. During the cable preparation and connection you must be sure that the Common pin and Normally Open pins are connected to the board. The other pin is not used.
If you don't do this your limit switch may not work properly.
Note 2: you should regulate the stepper driver current and set the micro-stepping properly. The first depend on the motors (see the datasheet) , while for the micro-stepping our actual settings are 1/16th for x and y and 1/2 for z.
Note 3: remove the CAPS from USER and RESET buttons of NUCLEO-F401RE since you may inadvertently touch them with the shield. That would cause undesired effects, for example the board being kept under reset.
I have NUCLEO-F411RE How can I use it in this project?
Are you willing to publish full bill of materials? There is one on bitbucket but it has less than half parts listed. I'm eager to build this baby, but not in current state - there are to many unknowns...
The Z motor in your BOM (the LC1574W-04) has a rated operating voltage of 4 VDC. What was your motivation to choose the 4 VDC version over say the LC1574W-12 one that is rated for 12 VDC? Correct me if I am wrong, but driving the 4 VDC version with 12 VDC will saturate the coils quicker but also draw more power turned into heat without much benefit. Or am I missing an important technical detail?
this is a really cool project. My only issue is with the open beam construction with no cross bracing to keep it square.
ALL THE PHOTOS USED IN THIS VIDEO ARE IN THE ELECTRONICS SECTION IN BITBUCKET LINK HERE.
bitbucket.org/compactpcbmaker/cpcbm/src/master/electronics/
Love it, can't wait to build my own. Even though JLCPCB is very cheap, it is just cooler to make it yourself.
It is not about the cost. Have you ever waited for a pcb 6 weeks ad then recognized you made a severe routing error,...
Thank you for pushing out those missing videos so fast meanwhile I received 99% of the parts, :)
Thats nice! Whats about the overall costs? Would be nice if its below $300.
@@rayly80 Hi it cost me about 200$ but I already had many of the parts at home. If I had to buy all parts I would estimate about 350-400$ which on the other hand would include a Makerbeam Pro set for further projects. If you have to go as cheap as possible I would redesign for 2020 beams and nema 17 motors and a different z axis stepper.
@@TheRcEngineer Thx for the recommendations. Yes, there are some questionable parts in the design. I'm sure the community will come up with a lot of nice designs in the future.
Really awesome. My parts are starting to come in now. Will you have demo files and a basic usage tutorial? I hope.
I can't find the "Z-axis motor cable holder 3D printed" anywhere among the STL files. Was it forgotten or am I having trouble seeing? Using a standard nylon cable mount for now, but yours will look nicer :-)
Hi David, it should be here: bitbucket.org/compactpcbmaker/cpcbm/raw/7ebb39c45f0baf7fa6d0a68084695586f59b79d4/mechanics/bridge/bridge_2p3_a.stl
@@TheAntPCBMaker Thanks; I found it hiding tucked within the footprint of the larger, non-sliding Core-XY belt mounting piece! (I think I may have thrown it out by mistake when I first printed those parts with too many supports and then just reprinted individual objects separately.)
fabulous
Great project, can't wait to build my own. I'm busy to resurrect an old 3d printer to print the parts. In the meantime looking for the right parts. I got my hands on 2 lc1574W-04-025. Maybe someone has an extra 2632 motor for trade?
I have the electronics working but I am unable to get bcnc to control the spindle. The esc is connected as per the pdf. The spindle control buttons do not work though. I tried the esc with a servo tester and it is working. I am using the latest source from the bitbucket repository. What is the spindle range? Did the Ant Team make changes to the code so grbl would output ppm? Info on ppm with grbl is very limited on the web. I put it on the scope an it doesn' t look like ppm. Maybe I missed something?
Hi, try to give m3 s10 command, and after a couple of seconds an m3 s900.
@@TheAntPCBMaker Hi everybody, where I can buy the Ant PCB Maker kit and how much will be?. Thanks.
Hi, i didn't realize that there was one file missing in the repo. There were default parameters for the spindle, so it cannot work with the fw binary 30. There is now the fw binary 35 with correct spindle parameters for AFRO20, download it in your nucleo, then connect to the serial and give the command $RST=$
This will wipe your parameters and restore the default ones of the uploaded fw. We will give you this and other details in a more ordered format, for now i just wanted to answer your request.
Hi, can you cue me on how to compile the firmware?
Soo... We're engraving/milling Metals ( the Copper Layer of the PCB ) less than a hand length away of what is basically an *IP00* ( en.wikipedia.org/wiki/IP_Code ) protected Control Board holding electricity and a Brushless Motor with exposed bearings and stator cavities? Bold move if I may say so! =)
I think you are required to stand over this this while it is operating. I am assuming since there is no housing, you need to use either a vacuum or mineral oil so the copper FR4 doesn't go flying all over the place. Theres a lot of questions unanswered when you first start looking into this. I guess that is the risk you run when you build a device at 1/10 of the cost of anything remotely close to it's abilities. I still like the open source aspect and not being beholden to a platform.
Hey, i have a problem here. I really couldnt find the lc1574w-04-025 in new conditions and the one i got has a different connector with 6 pins (Still only 4 cables). So i need to cut it down and use duponts on my own but i cant figure out in which order. If you look on the side of the motor with the cables they are from left to right black, green, white, red. In which order i need to connect them to the CNC shield? Any help would be aprecciated! My thaught is, that the order of the A4988 is from top to bottom : 2B 2A 1A 1B and this data here: www.haydonkerkpittman.com/products/linear-actuators/can-stack-stepper/15mm-15000 show that coil one is white + red - and coil 2 green + black - so that from top to bottom i would need to connect red white green black white but im really not sure and dont want to destroy the part i needed over a month to find. Please help me out :/
Hi, I am having trouble finding the AFRO 20A ESC apparently its been discontinued, can you suggest a good replacement for it.
Hi Paul, there is a new version of it hobbyking.com/en_us/afro-20a-race-spec-mini-esc-with-bec.html?___store=en_us
@@TheAntPCBMaker Exellent news, I had seen these but did not think the spec mached up to the discontinued one, thank you for your input, as always keep up the great work.
@@TheAntPCBMaker This specific part is no longer available, are other brands of ESC with BEC a good replacement?
I'm tempted to try detection and Trinamic drivers in my build instead if limit switches. Unless there's a reason that would work worse here than in a ordinary 3D printer?
As far as I know Stall detection is quite difficult on a coreXY. Because for a straight line in X or Y direction both motors will move. Would be cool though.
@@catwalker96 Hadn't thought of that. But maybe that could be handled like this: Under normal operation no axist should trigger the limits, so if any of them trigger you stop operations. Homeing is done one axis at the time. Would require firmware changes, but theoretically workable, right?
When Googling a bit it seems Duet3D already supports this with the TMC2660 and coreXY, so there is some hope.
The is no reason why it shouldnt work, even if its a coreXY.
Hi, anywhere I can buy this?
Keep it up!
And again I bought the wrong part.
The Z limit switch should be a MINI micro switch (hole spacing about 7mm). I bought a more common one with 10mm hole spacing.
For now, I will build an adapter. But maybe this should be noted in the BOM.
Hi, I'm trying to compile the firmware.I think I need a little help with this, I'm new using the STM32F401RE. Can find anything that helps.
Hi, there is an already compiled version here: bitbucket.org/compactpcbmaker/cpcbm/downloads/
To compile you need python 2, an arm-none-eabi-gcc toolchain and a make gnu or similar in your path. then from the firmware folder you can run make bin.
This comment is perhaps too obvious, but my fan has some recesses that allow the M3 socket heads to sink flush with the top of the fan, so I had to switch to M3x12mm SHCS instead of the specified M3x16 lest the extra 4mm do something nasty to the stepper drivers.
che dire? bravissimi!! ;)