CAD update for speedy boi

Speedy boi update

I've been learning some CAD to start planning. I'm leaving the design to be ready for 48v steppers, so they will be shown, though may take a cuple of iterations to actually include. So far I've got the carbon fiber gantry modeled, as well as a backpack to relocate all of the DC electronics to, banishing the 24/48v AC power supplies and SSR to the basement where they won't be touched. Also shown is the Mantis toolhead that will be pushing some massive plastic, as well as giving a much needed cooling upgrade over a single 5015 fan of the Stealthburner, not to mention the weight reduction. Note that the backpack won't be translucent, but it's impossible to see things if it's shown in black in the slicer, so bear with me on colours ect.

Changes since last post

  • Backpack designed
  • Switched to flying gantry (2.4 vs Trident base)
  • External steppers (shown in back) for A/B motors. More power, and actually able to purchase



Back right






Time for a new printer

Time to go fast

While my switchwire has been a lot of pain, and fun, but mostly pain, I'm back at it. There's some things that I love, and hate about the switchwire, and while I intend to still use it, I think it's time to build something that not only addresses those problems, but goes faster. This is just a really rough writeup of my thoughts that will change over time, but is here to keep track of what the plans are, and how they change over time.

The plan

The current plan is to start with a Voron Trident kit from Formbot, similar to where my Switchwire started from, and modify it to hell and back. The Trident is a fixed gantry CoreXY printer, which is generally pretty fast, even compared to my Switchwire already, but the need for speed is a thing. Mods will be broken down into 4 categories. QOL, Speed, Quality, and Eventually.


180 degree hinge allows the doors to completely open. Not needed, but sure nice to have.


Sexbolt is one of the biggest QQL mods. This allows for nozzle to probe auto calibration, making things a lot more reliable, especially when thermal expansion starts to kick in.


Klicky probe allows for probing of not just metal sheets, but any material you could want to print on, and will pick of thickness changes, making this and the nozzle offset auto calibration some massively useful QOL. It also makes the gantry lighter.



Pins mod will actually be done with carbon rods for a lighter gantry, but also increases the print quality by preventing any catching on the threads that are normally used as pins on a stock gantry.



Mantis toolhead is designed to add two 5015 fans to the toolhead for much better cooling, reduces weight, adds a sherpa mini extruder for more power and weight reduction, and supports insane hotends like the Volcano Dragon hotend, that adds volcano nozzles to the already high flow dragon hotend.


Endstop relocation goes along with the Mantis toolhead to add the endstop back.

Ramalama idlers add back most of the build space that was removed due to the difference in shape of the Mantis toolhead, as well as making them stiffer, which should help with resonance.


Carbon fiber gantry, to replace the 2020 extrusion. This saves massive weight, not only helping the motors not skip steps, but helping immensely with resonance at higher accelerations. This will allow for much higher input shaper tolerance of high acceleration, and should at least get to 25k accel without any noticeable smoothing due to input shaper.



48v motors are on the table for one day, but due to the chip shortage, there are absolutely no driver boards to be found in stock, even from AliExpress. There are several options on the table in terms of driver boards, to motors, to controller boards to house the drivers, but it will come down to what I can source, as opposed to what I want.


This project has been started in a sense. I've ordered the carbon rods, carbon fiber shaft, and a sherpa mini with some other small things on the slow boat, but the core printer isn't set in stone. I'm looking to iterate on ideas and change my mind, but I'm taking quite a lot of tips from the Annex engineering, HevORT, and VZbot teams. We'll see what else helps push this printer to go fast, but also be reliable, as far as what a 3d printer really can call reliable.

Building a printer: Day 5

This has been.... A journey...

I have submit for, and gotten, a serial number! I am now the proud owner of VS.288 and yes, the audio quality is bad, but I have no clue how to use Davinci Resolve.

Trials and tribulations

This has been both easier than expected, and an absolute nightmare. I've worked with klipper before, but this was my first printer built from scratch, and it shows. I had massive issues with microfit connectors, so things like toolhead wiring is all soldered, and countless other issues here and there, but it works, and it works fast. I've modded the printer a ton from the kit that it started as. I'll try to list the mods here, though it's not exhaustive. I'm sure there are things I've missed.

  • Dragon hotend swapped in

  • Y belt tensioner mod because stock it was impossible to get correct, and even new belts had to be ordered to fit this mod in.

  • AB-BN It's no secret that Voron designs are built for ABS. I've upgraded the cooling to print materials like PLA better, and it looks so much nicer.

  • Fan mount There's already too much tape in the enclosure, so mounted the fan with a proper mount for the under side.

  • Quickdraw probe not seen in video as it was installed over the last few days after the serial video. It should get more accurate results for a better bed mesh, and isn't prone to drift with heat. Something I'm told hotends get is hot, so that seems like a bad mix with inductive probes.

  • STM32_Mini12864 Added a display because I could. It has no use, but it sure looks cool. This made it easier to wire up considering how little I care.

Where I'm at now

Print quality is nothing short of great considering the speeds, and I'm still in the process of tuning. I've added a port to connect an ADXL345 accelerometer that sits on the bed and the toolhead to measure resonance and compensate for it in firmware due to the speeds that I push.

Speeds and accelerations


; ACCEL: 2000/2000/8     for First Layer
; ACCEL: 7000/7000/8     for Travel
; ACCEL: 1000/1000/8     for TYPE:External perimeter
; ACCEL: 2000/2000/8     for TYPE:Overhang perimeter
; ACCEL: 2000/2000/8     for TYPE:Internal perimeter
; ACCEL: 2000/2000/8     for TYPE:Top solid infill
; ACCEL: 4000/4000/8     for TYPE:Solid infill
; ACCEL: 5000/5000/8     for TYPE:Internal infill
; ACCEL: 5000/5000/8     for TYPE:Bridge infill
; ACCEL: 5000/5000/8     for TYPE:Internal bridge infill
; ACCEL: 2000/2000/8     for TYPE:Thin wall
; ACCEL: 2000/2000/8     for TYPE:Gap fill
; ACCEL: 5000/5000/8     for TYPE:Skirt
; ACCEL: 5000/5000/8     for TYPE:Support material
; ACCEL: 5000/5000/8     for TYPE:Support material interface

Resonance is being handled in software, allowing even a bed flinger to run quite fast as seen in the video above to result in amazing quality, and blazing fast print times. The serial video cube printed to voron spec in 2h31m45s coming in at a massive 57g and 60mm in all dimensions. I'm still not quite happy with the results, so I'm going through this amazing print tuning guide, and dialing in results. There may be room to increase print speeds a bit more here and there, but I'm already maxing out the hotend currently on infill, and with anything higher than a 0.4mm nozzle, so I'll have to go high flow heatbreak, and/or CHT nozzles to get more speed for big parts if I so choose.

What's next?

I've got a lot of tuning to do still, but want to get into some more advanced materials. TPU, PC-Nylon's and anything this printer can print to see what all is possible. Multi colour prints are also on my radar, but I'm sorting through the mess of options for that before I really decide on what I want on that front. I'm waffling on building a V0.1 as well to have a printer than can just print parts stupid fast so I don't have to keep a million spares on hand as well, but undecided if I want to go that route, or just save up for something bigger, or if the Prusa mini is good enough. Only time will tell on these things it seems.

Random things I've printed on the Switchwire

Belt tension mod


Holder for ADXL345


Input shaper tuned wrong


Bed flingers one downside, high accel doesn't go well with thin tall objects


Keycap printed in less than an hour. Looks as good as the one on the prusa mini that took 3.5 hours.


Foxes are cute, so I printed one to do a detail check


Printing a tuning tower for pressure advance. The QuickDraw can be seen in this image finally.



While this isn't "done", I don't think it ever will be. I'm not trying to sell anyone on anything here, but if you do happen to need something printed, and can't print it because of lack of print space, or material incompatibility or just don't own a printer, feel free to reach out. I'm sure I could squeeze in some time for you to get your cool idea made, or even just something you want at a cost that's reasonable. I have a really fast printer that's able to print some amazing things, so I'd rather share that with others as opposed to hog it all for myself.

Back from vacation

I'm not dead

It's been a while since my last update. Life has been busy. Friends visiting from across the world, constant work on the Voron Switchwire, and the usual life things all keeping me busy. Content has been a bit light, but I have a backlog of things to talk about now that I have some free time thanks to the holidays, I should be able to get more content out. I don't keep a backlog of content to delay out posts, and would rather keep things as up to date as I can. I'll be posting an update on my Voron soon, and I hope this one was worth the wait. It sure has been an adventure for me, and it's still not over.

Building a printer: Day 4

It moves!

After much much failure, I have it able to move. The Y belt seems really loose, near impossible to fix, the gantry is a bit stiff, but it's moving. I'm not going easy on this printer, and going for Voron speed right out of the gate the first print. It's by no means done. Enclosure is still not on, y belt is skipping, parts are missing here and there, but it can at least print the rest of it's upgrades if I tame it in. There will be at least a few more follow up posts as I'm looking into some upgrades that can solve some issues. So far I'm printing the Y belt mod found here. That should help me get better acceleration, but I'll need to wait to see until belts come in. The parts are printed. I also printed a temporary solution to not wanting to solder the bed connectors, which I think looks nice enough for now.

Some pictures/videos

Starting a benchy. It didn't finish thanks to the Y belt skipping.

Tamed the printer down and started printing the fix.


This printer is totally not tuned, and ringing can be seen, especially near the voron logo. I'll address this later hopefully, but that's high speed printing problems at least. The rest looks bad on camera, but looks fine in person.


Here's the connector I printed to be lazy.