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Maurici´s Switch(ish)ware


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So... I´ve been super entertained during the 3 past days converting one of my smaller Cartesians (formerly an Ender 3 S1) to switchwire...

After finishing my build on the V0.1 decided that one voron wasn´t enough but I didn´t really want to replace my finely tuned cartesians with a V2... next best fiddling option was install the switchwire motion system to one of the Cartesians.

This has been rather budgetly (knock off omron sensor, a few screws and bolts of missing sizes from my kits, 2 meters of belt and a few idlers... all under 70 quid) redesigned the X carrier to reuse my extruder, and the machine was already fully linear railed, so it was all really cheap, quick and easy to do.

Kept the original unorganised wiring as I didn´t wanted to redo harnesses and printed with leftovers of the purple used for the V0...

Sorry guys no LED lights in this one.

Oh. and in record time. 4 hours form the first bolt stripped to the first successfully leveled bed and first print!

anyway. being that simplistic approach... I´m guessing isn´t realistic to request a serial, isn´t it?

Shame she will never be for real, but she will be for me.

Find a few pictures!






Edited by Maurici
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9 hours ago, Maurici said:

Oh. and in record time. 4 hours form the first bolt stripped to the first successfully leveled bed and first print!

Wow! That's impressive. You'll perhaps start a new craze. Forget printing a benchy in sub-20 seconds - it's the the speed-wire challenge. I'm definitely not entering that 😉


I have to admit I do like the Core-XZ mechanics and consider it for my cartesian printers.

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12 minutes ago, smirk said:

it's the the speed-wire challenge. I'm definitely not entering that 😉

well. again, the whole printer was already running an SKR e3 V3, Klipper, and linear rails... and no harness has been adapted/cut to size , but just "tucked away". Sounds pretty impressive, but taking in account that I only assembled 2 motor mounts 4 idlers assys and an X carriage I now think its actually been WAAAAAAY too long! Also helps that the massive Voron comunity had already a printer.cfg file that needed minimal debugging, and that I´m already pretty familiar with klipper.


I´m now kind of thinking that I should tidy up the wiring and request the SN. Bollocks.

Edited by Maurici
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7 hours ago, Maurici said:

I´m now kind of thinking that I should tidy up the wiring and request the SN. Bollocks.

Sounds like a plan - no reason why it shouldn't have a serial #. Then you'll be on the slippery slope to another Voron conversion

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a bit more of fiddling today (nope, sorry, not the wiring nor serial yet).

Following my budgetish style conversion I did cut yet another corner.

I used to previously have a posh  bed mains powered with a glass surface that was perfect for engineering materials, but... if it was going to be a voron, had to be capable of going much faster therefore glass and mains had to go to reduce weight (double intention as I needed steel for the inductive probe) and recycled one of my old Ender 3 PCB beds.

I was shocked this morning when I´ve set up the 4x4 auto mesh, and I´ve seen the deviations... OMG I can´t really believe that this previous 3 days this thing has been printing like this and actually managed to get anything stuck in the PEI... this textured sheets are friking impressive. trully. The range was like 0.25. Tried another bed I had, and it was 0.3. No joy either

I have a massive OCD with bed health and leveling... In my biggest slinger I have a 400x400 glass bed that will consistently show +/-0.08 in a 9x9 grid.



So... pulled the old trick book and started shimming. I´ve not seen doing this to many people... (I´ve not found much bed leveling information around either, that probably means I give it WAAAAAY too much relevance).

First step. Crack open a Porter (sweet if possible) and if you happen to smoke, be sure you have plenty of supplies on hand. It will be boring and long.

Step two. Fire up spotify. Put at least 3 hours of your favourite relaxing music.

Step 3. take a look at your bed. It looks flat, but you know it isnt.



Step 4 Take an strip of aluminium/foil tape and partially stick it in the frame, and start placing VERY SMALL portions of this strip on the low points between the magnetic base and the spring plate. ONE BY ONE. That is, put a shim, test, redo the test and yada yada. every shim will affect the springiness of the whole bed, this is why it needs to be tested one by one. In my case, I can count 11 strips, plus at least 7 I´ve removed/replaced. That means like 20 ABL processes... 



Step 5... warm it up to printing temperature, let it soak for 10 minutes, and recheck.

Step 6... Enjoy the results (note that I´m not specially happy with the range for such an small bed 220x220, but I´m guessing this is what I´m stuck with. I´ve to say that works phenomenal).






Edited by Maurici
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and a bit more fiddling.

To Start with, seems that the mosphet of my part cooling fan in the SKR is blown. I can´t tell by sure if it was due the switchwire conversion, or previous to this...

Either way, swapped the board from another of my cartesians, and started working again. Time to process an amazon warranty... Nevermind.

also... as I´ve seen many complaining, the keyback carabineer thingy holding the gantry when switched off (the yellow bit), is not strong enough (despite being the 20 OZ one... or so it says) and the gantry drops anyway, Not sure if there is different chinesium suppliers or something, but mines (and many other people around the forums) is too weak.


Lukily, I bought two as it was cheaper a pack of two than only one, so decieded to put one on each side. 

Mirrored the STLs and printed them at coarse quality with the V0 (the blue bits)





I have not payed too much attention to the print quality, and I´ve "risked" printing it a 0.3

Not being a precision critical assembly and the switchwire having to go back to work ASAP, I really wasn´t in the mood for long prints, so tested the boundaries of my V0... Cranked the speed feed in klipper by 250% (basically printing to my firmware limits). managed to cut the 52 minutes "expected" to just under 21. Lovely. I´m still astonished on how fast this small thing can print ABS. Throw a 55minutes on a reasonably fast setting already, crank it up in klipper, go to have lunch. come back to a finished print 30 minutes later. I´m still wondering why did I wait till Stephan´s video to pull the trigger...

The result... well, it seems to work just fine... as it holds the gantry now in a sort of non-gravity position! 🙂



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