Hello, thanks for your video. BIGTREETECH TMC5160 pro can support up to 60V, not 63V. Friendly reminder: Voltages over 36V can shock you so pay attention to safety when using high voltage drivers.
nice walkthough guide thanks Josh. very good pointing out these details on it. this pro board looks like it has some neat features i am also reminded of something similar by mellow fly to have the HV caps and rail. but fewer steppers. whatelse i forgot now? yes is the other new project by some annex ppl. whereby you have as a separate board for the HV for klipper, with an rpi pico mcu on it ...but i also wonder now if we cannot have something cheaper as a replacement for BTT MOT stepper expansion board. i.e. that has no mcu and just breaks out via the EXP connector the plugs for the step sticks. but to improve it with separate HV mot power rail and bigger caps. then maybe that could be a cheaper way to augment those existing older boards which were not HV capable. like the spider etc. however i am not sure if that is feasible, since if not any obstacle then why not such product already exist yet? hmm. or maybe putting the best axes stepper on expansion is detriment to communication performance IDK. have not looked into it myself anyway good video take care 👍
Have UHP-500-55 that I'm going to use with the Octopus Pro and HV drivers on Voron 2.4. Want to drive all steppers drivers @ 55v; with motors .8 to 1amps. I don't think I'll run into issue but HV stuff is new to me.
That you for your video. Great presentation. If you have time could you mention how the motor voltage jumpers work. Ex: if a person is running 36v motors will they need to use the ‘motor’ jumper? And also could you elaborate on the voltage chopping? For example: if your motor is 24v but your power supply is 36v dose the chopping do something like 24v-0-24v?
Watched this and your 48v videos. Super helpful! Just had a recommendation question on the power supplies. I saw in another comment of yours that you need roughly 25-30w for each stepper at 48v. I have the new SKR 3 EZ on it's way to me and I will be running all 5 steppers on 48V. Will have a separate toolboard running the hotend assembly and extruder on 24V. A UHP-200-48 and a UHP-200-24 should be good to go to run my toolboard, SKR board, and steppers right? Also, I know there are many ways to get voltage to a raspberry pi in this setup. What do you usually use? I'm thinking just a simple step down board from the 24v to 5v.
Good stuff thanks for the overview Josh! I was under the impression that the non-pro octopus could also run both motor voltage and board voltage steppers simultaneously. Is that not the case?
Duh sorry, I knew about the cap limitation. brain fart on the voltage number used. I just thought the Octopus standard could also run some motors on 24V and others on motor voltage. Is that the case? Or do I have to run them all on motor voltage?
@@JoshMurrah Ahh ok. So if I want to run 28V for instance on one, all motors will need to run at that voltage. Or I will need to break out the voltage pins of the driver by hand as shown in your other video. Thanks for the quick responses as always! A lot of us will be using your example to push our machines faster. I really appreciate you taking the time to make these videos.
I have been building a custom 24 x 36 printer. I have ran into a snag I could use some help with. I loaded ocroprint on my raspberry 4 just fine. I installed the plug in for octoklipper and it went fine. I went threw all the steps of getting kipper clone and running makeconfig. It all went fine. I created the firmware.bin file and flashed it to the Octopus Max ez and it chander the name to firmware.cur so I pretty sure it went fine. But her is my issue. From this point the pi and octoprint can not see the board. When I run the ls command to find the address it says there is nothing found. When I try and open the configuration file in Octopus to edit it says file does not exist... What am I missing or what do I need to do different? HELLLLLPPPPPPP
Great video, thanks! I‘ve got mine properly working except for one thing: I have the part cooling CNC FAN0 connected and it works (fan runs when clicking FANS ON), all the other FAN ports CNC FAN1 to CNC FAN5 do not work whatever I try. Are there any special steps required to turn them on/use them?
Hi do you think closed loop stepper motors will make a difference when running the printer at high speed ? Correct me if I'm wrong but having a motor that will Correct its position could be an advantage and allow more rapid movement ?
I tried external mellow TMC5160 Pro V1.2 with Octopus Pro/Klipper ang got constantly "Unable to write tmc spi 'stepper_x' register GLOBALSCALER" (24V or 48V same) in any configuration I could imagine. (corexy) TMC2209 in uart working fine on this board. So I am stuck before i contact mellow support or BTT support... ...does anyone have a working configuration example for Octopus Pro/Mellow 5160 Pro/ Klipper? There are some examples but all for super 8 board. thank you.
what kind of steppers do you need when running the higher volt drivers? like all the printer steppers seem to say 3 to 12 volts? is that not a hard limit? or does one have to buy higher voltage steppers too?
I would assume two 48v steppers on the board at 2A would need at least 192 watts just to run those two drivers. With 8 of those bad boys I’d imagine would need a TON more than 200 watts. Am I missing something on how the power passes through this circuit?
Seems to me the stepper capacitors on the non-pro board is of better quality than the 'pro' version. Can anyone confirm what I am seeing in the video at 5:28?
What makes you think that? It looks like the non pro is using surface mount caps whereas the pro one looks like they are through hole. The main difference is just the package and the specs of the cap.
Hi, I’m struggling with my octopus pro, btt tmc5160 and klipper configuration for my x and y. Rest is 2209 and is explaned in many printer.cfg’s. Can you share you your printer.cfg so i can see which 5160 parameters i have to set. This is my first klipper deep dive :-) thanks in advance.
Their is a dedicated raspberry pi header which provided 5V power to the pi. On a side note the 12V rail can provide up to 4A, the 5V up to 8A and the 3.3V up to 1A although that is the total including what the controller uses so you couldn't use exactly that much. the six PWM fans and two always on fan headers can be set to 5V, 12V or 24V however I haven't scouted the available draw for you yet sorry.
E does not move at all with BTT Octopus Pro F429 board /48V / BTT tmc5160pro v1.1 / 1.7A motor 42 / Vref 800mA / Marlin / SPI, needing some help please
Hi Josh, You talk about German driver boards 5160, what are these driver boards called and where did you buy them, any online store you can recommend. Got a little interested in you calling them German which I interpret as "Non" China made drivers
A proper 3D printer controller should support 100W heater & have a proper PT100 interface such as MAX31856 right on board. In a worst case scenario the board should have a proper interface for connecting & driving an external power MOSFET. Otherwise it looks like these guys from Bigtree have no fuckin' clue about what they design at all.
Why are you so mad about it? This is a pretty popular board now. Each heater is rated for 5 A, so at 24 V that is 121 W, the bed connection is plenty powerful enough, it does have the MAX31856, so what are you complaining about? Do you have any legitimate complaints or are you just moaning for no reason?
