So I bought 3 of the high voltage octopus, and w/o a working printer, I bought a Two Trees SP-5 Plus, big enough to make parts for the other dead but even bigger printers.
Background on those 2
Ender 5 Plus:
Failed the PETG test in a couple days, stock head isn’t able to stand the heat.
Made a new carriage on a prusa, out of PETG+CF, but the E6 was doomed from the gitgo, factory installed heat break put in way too tight, stripping the hot block threads, so it leaked, I spent another $475 putting a new head kit from slice in it, but it only lasted a month before the Mosquito started leaking like a colander. But it let me make a new carriage for the ender5+ and it ran fine for about a moth with a new Creality Spider hot and and an orbiter2 on top of it. But the Spider fan kept picking up debris from the bad, eventually jamming the spider fan, which in turn let the heat telegraph up and destroyed my carriage.
So I bought a 2 trees Sapphire 5 plus. which with a bowden tube froze up daily, but worked well till I broke a wire off the x home switch while cleaning up a freeze-up. I plugged my $200 soldering station into the same ups the Sp-5 was on, but the static grounds must not be kosher as I blew the MKS_Robin_Nano_1.2 board resoldering the switch.
So I ordered what I thought was 3 of those boards from amazon, but they shipped me 3 of the nano_v3.1 boards, same physical size but huge diffs between the 1.2 and the 3.1 boards.
I’ve been playing with Marlin for a month trying to get a configuration that work with the newer board and its TMC2209 drivers but the closest I come to working is the use of random numbers under the default 16 for microstepping. So it moves too far, too fast, and 90% of the time not by COREXY rules.
tronxy-400-plus: came with a broken Marlin that despite what you set for z offset, insisted on spitting out plastic 5mm above the bed, so its never printed anything.
So now I’ve collected some carbon fiber tube and replaced the puny y motor that was always loosing home, with a
1NM nema-23 3 phase stepper/servo driving the right rear end of a 25mm dia cf tube linking the two Y belts. Half the reason I bought 3 of the MKS boards was the fact they have separate headers for gnd,en,step,dir so I can plug them directly into the bigger, higher voltage stepper/servo’s which is what I intend to do on both the big Ender and the tronxy, after I put the X bars on a CF diet with linear bearings. The octopus higher voltage version does not have this pinout available so you have to remove the drivers and get those signals from the adaptor in the driver socket.
I have a years experience with 4 of those type motors as they move my 80 yo Sheldon 11x54 lathe, making it do tricks that weren’t even a footnote on the menu when it was shipped to the navy 80 years ago. Thats 2 of them, 2 more run the Z and B drive on a 6040 mill I threw away all the electronics of and made new stuff that Just Works. Those new drives are amazing, they will get to where they were asked to go, or shut down linuxcnc in about 1 millisecond.
So, without a working printer, I am dead in the water. So I bought a voron trident a week ago but it will be another 2 weeks or more getting here. Here in the states, Fedex is just about toast. Some plates for the prusa just spent 2 months in Fedex’s Memphis TN terminal.
Among other things it comes with klipper. I got klipper on one of the bpi5’s, replacing the outrageously priced rpi4b, and doing everything I’ve asked, except flash the nano boards which I find later have never been flashable with dfu.
So that’s where I’m at, and I need pointers to download the configs for this later, version 3.1 Robin Nano board which does not exist in your configs listing, nor does the high voltage octopus, so I need a regular XYZ for the ender, and COREXY for the tronxy, ideally for both boards. And hopefully Makefiles with a make u-sd image option the MKS boards use to update themselves. The BTT boards I assume can be updated with dfu.
I’m also a firm enforcer of TANSTAAFL, so success at restoring these printers will be rewarded with a nice donation.
Can you help with updated configs for these two boards?
