Hi Ryan long time no see, decided to build a Primo to go along with my lowrider. just need to know in the parts section the series wiring kit how many leads are in a kit. I wants to fit end stops to this one and I need to wire the primo in series. cheers wayne
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need to wire the primo in series
It doesnāt appear that Ryan is selling series/serial wiring anymore. Everything in his shop has individual wires for each stepper, and therefore you will get five āleadsā with your kit. If you require serial/series wiring then it appears you will have to wire up a series/serial wiring harness yourself. See this diagram. Note the harness can be small, and it can be wired at the control board rather than the large āYā harness Ryan has shipped in the past, so you can bring all the individual wires that Ryan now ships to the control board before āconvertingā to series wiring.
You lose most of the value of endstops in a serial/series wired machine. The primary value of endstops is to square the machine, and that can only happen if each stepper motor is wired to an individual driver.
If you plan to do endstops, then it is helpful to have one of these for each endstop you want to install. They are approximately the same length as the wires on the stepper motors. They come with the Rambo board Ryan ships, but most other control board solutions will not have them.
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Typing error on my part I do not want to wire in series as I did with the rambo mini, I am using a ramps board this time and need the cables to control the new machine thanks
If you are purchasing from V1, then he is only selling wiring for the dual-endstop version, so you get five cables, one for each motor/driver. You will need something to bridge the distance between the endstop and where you plug into cabling (the distance spanned by the wires out of the stepper motor). These cables can easily be made from Dupont wires/connections if you have them, or you can buy the endstop plug wires I linked in my last post.
Robert this may or may not reach you but I have been playing with a NEJE A40640 Laser and I cannot seem to figure out how to wire it up. The first try I connect what I thought where the signal wires to the servo pin(6) and ground but the wires became extremely hot and started to melt. If I plug the laser into an external power supply and press the test button works fine. I would appreciate it if you are still around a little guidance with regards this is in particular wiring my old laser is not up to scratch compared to the new one. If you can help it would be greatly appreciated
Sorry Robert forgot to tell you I am using a ramps 1.4 as I do not want to wreck my original mini rambo
this is a 3y old post, it seems you are the original poster but perhaps a new thread with all the relevant info should be better. also search for ramps laser wiring , it should prompt some results that could help you
Plese provide me a bit more information about how you are going about hooking up the laser.
I would suggest you start by using the companion board since it splits out the signal pin. You need to provide external power to the companion board. You would use the two-wire connector on the companion to hookup the companion board to your Ramps board.
I can never remember which pin is the laser pin on the Ramps board. It is either pin 4 or pin 6, but Iām concerned that youāve already damaged pin 6 on the Mega board. The mega board pins can only handle 40ma, and they have no protection. If your wires were getting hot, then you were pulling far more power than 40ma.
I still have my original A40640, and, other than been a lesser powered laser compared to recent offerings, it works just fine. It lacks the second fan of the A40640II version, so Iāve been conserned about long jobs at full power, but Iāve had no issues. I had problems with the power wire overheating at the connection to the companion boards on long laser runs, but I fixed that problem by upgrading to thicker wires.
If you cannot find the companion board for some reason, I can give you alternate wiring instructions along with info about what wire is the signal wire.
There are a couple of things to be aware of. First, if your Ramps board has a recent version of the V1 maintained Marlin firmware on it, you need to put the following at the top of your file:
M3 I
You can add this to the Start Code section in Lightburn, so that it is automatically added.
Second, turning the laser on using the Marlin menu is problematic due to a bug in the menu code associated with the laser safety timeout.
All good Robert it helps considerably if you get the earths for both the board and laser to be common. Used it last night and today works great man does it put my poor old laser to shame. I have an original lowrider and a primo the laser will be used on the lowrider just have to print a couple of mounting brackets and shouid be good to go. Thanks for getting back to me always great to know help is available.
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