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VS.000 -- A Switchwire Revival

cdh

New member
For those that we're not at Reno VICE 2024, RCF raffled off the original Switchwire. It's seen better days, and is not currently in working order. I was specifically instructed that no serial transfer would occur until this thing is up and printing (hopefully with a little less rust).

Initial Assessment...

Let's start by examining the current state of affairs and figure out what parts we need. So first things first:
PXL_20241007_182955358.jpg

Off the bat:
  • Toolhead: We'll need to build a Stealthburner w/CAN.
  • Enclosure: Gotta make a run to TAP Plastics
  • Color: As part of this restoration, we'll use the VICE Filament from LDO
  • Build Plate: Is looking a little rough but might still work ok
  • Screen: We'll keep the nostalgic LCD
  • Probe: Inductive probe needs to go. What to replace it with?
PXL_20241007_182959560.MP.jpg

Belt's don't look bad. There's definitely some rust on the X rail.


PXL_20241007_183010049.MP.jpg

That looks salvagable. Might not even have to pull it off the printer.

PXL_20241007_183015732.jpg

But that Y rail... and these black oxide screws.

PXL_20241007_183058168.jpg

Assuming everything works here, all we're missing is a Pi!

Questions left to answer:
  1. What probe to put on here? (I have an SB2240 for the toolhead. That doesn' have I2C or I'd use the EBB Eddy that came home with me)
  2. Replace all the screws or just clean them? We could swap everything with stainless
  3. Keep the ABS panels or replace them? They're a little rough in a few spots.
Stay Tuned...
 
UPDATE #2

First things first... let's pull out all the unneeded wiring
PXL_20241011_021341550.jpg

Here lies:
  • All the toolhead wiring except 1 pair for the X endstop (for testing)
  • Extra power wires that ran from the power supply to the SKR for some reason
  • A mosfet that automatically powers the case LEDs when the board is powered up (we'll put in some fun RGB later)
  • An SSR!?
Now let's get a Raspberry Pi hooked up and see what's going on with this board:
Screenshot 2024-10-09 at 4.31.20 PM.png

That is a very, very, very, very, very old version of klipper. And it looks like the previous owner was a fan of mainsailos. To resolve the error, I:
  • Installed Katapult on the SKR. (I hate pulling covers and swapping around SD cards just to upgrade firmware)
  • Installed fresh klipper
  • Pulled a config
And something is off... wait, what's this?
PXL_20241010_030854297.jpg
What is a 0.9 Degree stepper doing on here for the Y axis? Oh well, that's easy enough to deal with.

But the screen doesn't work!?!?
What is this mess
PXL_20241010_232812550.jpg

A few hours later... and a bunch of probimg with a multimeter, and we have this config:
[display]
# mini12864 LCD Display
lcd_type: uc1701
cs_pin: PB9
a0_pin: PB8
rst_pin: PB15
encoder_pins: ^PA9,^PA15
click_pin: ^!PA10
contrast: 63
spi_software_sclk_pin: PA5
spi_software_mosi_pin: PA7
spi_software_miso_pin: PA6
menu_reverse_navigation: False

Other than a little surface rust, the rais are in good shape. Everything moves smoothly. So add some grease, and a few part swaps later...
PXL_20241011_021350273.MP.jpg
 
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