I built a 350×350×350 Formbot Voron 2.4 about 4 years ago, messed with it for four months, and then completely gave up on it. First layers were a nightmare, Z‑offset drifted constantly, and I felt like I spent more time babysitting it than printing. It sucked the life out of me and the printer has been sitting untouched ever since. At times, it printed really well and just when I was confident I had things working great, I would get a catastrophic failure.

Now I want to rebuild it properly with modern parts and make it bulletproof.

Original machine:

• Voron 2.4 350×350×350
• Formbot kit (lightly used, old design)
• Afterburner + Clicky
• Stock wiring harness and drag chains
• Titanium backers installed

Considered upgrades:

• ChaoticLab CNC TAP Pro V2
• ChaoticLab CNC XY joints (r2 belt path)
• ChaoticLab CNC A/B idlers, front idlers, Z idlers, motor mounts
• Stealthburner + Galileo2
• CAN‑bus toolhead (leaning SB2040)
• PIN mod + new belts
• MGN12 X‑rail

Looking for advice on:

• Whether the full ChaoticLab CNC motion system is worth it for a 350
• Best CAN‑bus board for SB + G2 + CNC TAP
• Any pitfalls with CNC TAP Pro and the CNC XY joints
• Must‑do upgrades I’m missing
• Anything I should avoid
• Recommended places to purchase the upgraded parts.

Since the printer does not currently print, I need to purchase the printed parts for Stealthburner, and potentially other miscellaneous parts.

I should also add that this was my very first printer, so I am an old Noob, and felt like I was drinking from a fire hose. So lots to relearn and plenty of dumb questions pending.

My goal is a rock‑solid, low‑maintenance Voron with consistent first layers and zero babysitting. Any guidance from people who’ve rebuilt older Formbot kits or gone full CNC would be hugely appreciated.

Thanks!

Bill