Tagged: SKR pro
September 8, 2019 at 8:18 am #112533
Any thoughts on this board for a MPCNC? what drivers would you recommend?September 8, 2019 at 10:45 am #112566
32 bit is evolving rapidly still. Unless you are comfortable with Marlin edits maybe give it some more time.September 8, 2019 at 12:20 pm #112581
already running marlin 2 on my 3d printer and I do like the greater memory availablity for future upgradesSeptember 8, 2019 at 5:19 pm #112619
Well than, I hope it is a good choice cuz I just bought one!September 9, 2019 at 4:48 am #112685
what drivers did you get?September 9, 2019 at 5:57 am #112700
2208 but the 2209 is what seems to be the ideal when they start to become more available.September 12, 2019 at 2:44 pm #113846
I’ve got one on order as well, with the 2209 drivers. Looks like it will be next month before they can ship it.September 13, 2019 at 4:21 pm #114062
Does anyone running a SKR pro mind sharing their firmware with me please?September 13, 2019 at 4:27 pm #114065
I have not plugged mine in yet. If you need firmware you also need to state what drivers and how they are installed (uart, spi, non of the above). It is a pretty configurable board you will probably need to get in and change things to suit your needs at some point.September 13, 2019 at 4:31 pm #114066
I’m using TMC5160 on X and Y using SPI. I’m using a TMC2208 on the Z using UART. I think I have a handle on changing the configuration for the type of stepper. Just not sure about the pin configuration.
September 13, 2019 at 4:37 pm #114068
- This reply was modified 3 days, 6 hours ago by Jon.
Interesting. I wonder if you can use both at the same time. I hope someone that knows weighs in.September 13, 2019 at 4:38 pm #114069
I hope so 😂. The 5160s came in a 4 pack and I didn’t want to wait for a 5th.September 13, 2019 at 9:25 pm #114083
here you go gents – config for SKR Pro v1.1 – with TMC 5160 V1.2 drivers.
Make sure to change the platformio.h to platformio.ini for correctivity;)
best of luck!
*the TMC drivers are set to 1200ma — i’ve not run the machine beyond 45 minutes at a time, the motors get warm but not hot for me, but overheating motors can be a disaster for your project as well as soften PLA motor mounts – make sure to pay attention to this!!
September 15, 2019 at 9:59 am #114201
- This reply was modified 2 days, 14 hours ago by Dirt Merchant.
well just ordered mine with the 2209 drivers and the tft display from aliexpress.
now to see what I can find for a printed case…September 15, 2019 at 10:02 am #114202
I just watched an Alex Kenis video. These 2209 drivers might be a bit of a nightmare for a while. Looks like two of the larger suppliers are making them with different pin outs. So I am not sure how this is going to work in the firmware yet but it looks like he is going to have a review/overview of them soon.September 15, 2019 at 10:12 am #114203
yeah I saw that too he is an AMAZING source of info much of it goes over my head but I learn every time I watch his videos.
hopefully if I stick with Bigtrees drivers on Bigtrees board I’ll be OK. And they do seem to be pushing their firmware into Marlin so fingers crossedSeptember 15, 2019 at 12:00 pm #114210
Hey guys jumping in here with some updates on my experiences.
Did some trochoidal milling of brass yesterday evening after losing a cylinder head dowel for my KX. I have previously attempted to go without the dowel (used to locate the head gasket properly) with non-optimal results. In effort to have a good ride today (it was successful), I had to have a dowel pin!
12mm OD, 10mm ID – 14mm length.
So I cut a pocket in some 3/4 inch plywood, hammered in a 1.75″ square bit of brass stock (C360) at 14mm thickness and proceeded to cut the dowel pin. The operation was about 30-35 minutes run time with some intense activity on all steppers. The process went off smoothly, though I’ll be making a low profile vice for the machine asap – wood pocket workholding may be too much of a compromise.
At 1200ma the steppers didn’t obviously seem to lose any steps, but I can tell you that they were hot! Almost but not quite too hot to touch.
11.6mm OD (worst performance, maybe there were steps lost:/), 9.96mm ID (was blow away), and length was dialed in on a manual mill.
I used a bit of .0015″ shim stock to make up the difference on the OD. Beat the hell out of the moto and its holding up.September 15, 2019 at 6:49 pm #114244
I finally got everything working with mixed stepper drivers. Thanks for your help. Now I have to figure out how to control my spindle and laser.September 16, 2019 at 9:02 am #114343
Keep us posed on the spindle and laser man!
I am looking hard at a 800w 65mm watercooled unit for those sweet sweet lower RPMs.
Also lasers are just cool in general.
let us know how you go.
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