u/Sainroad

▲ 254 r/prusa3d

When Prusa's own team has to tell fanboys to stop reporting a customer sharing a real experience, it proves this sub has had a toxic echo chamber for years.

TLDR; Stop suppressing criticism. In fact, this toxic fanboying ends up hurting the company far more than genuine feedback ever could by pushing customers away and even Prusa themselves clearly don't want a hostile community representing their brand.

I’ve been in the 3D printing hobby for years. My farm currently sits with a mix of Vorons, Creality, Elegoo, Snapmaker, and mostly Prusa machines including an XL 5 head, five MK4S printers, a MK3S+, and a Core One currently waiting on the INDX upgrade. I don't have a Bambu Labs printer and I'm not planning to for various reasons. I point this out only to establish that I actually like and use Prusa products.

Lately though, I’ve found myself liking Prusa less and less. Look no further than the recent XL+ upgrade kit rollout. Most of what that kit "upgrades" are just basic fixes for flaws that should have been solved in the original design. On top of that, the upgrade kit is completely overpriced,  they don't even clarify what items are actually included in the box. To add insult to injury, instead of clarifying the contents, they bumped the price up even higher just days after announcing it.

Despite things like this happening, the state of the fan culture surrounding Prusa, especially in this subreddit I don't know about Discord, has become downright toxic. It genuinely feels less like a user community and more like a cult where independent thought is treated as blasphemy.

The "Defend the Brand at All Costs" Mentality

Companies exist to make a profit. We give them our hard earned money in exchange for a product based on their marketing and defined specifications. If a product fails to meet those expectations, consumers have every right to criticize it.

Yet, any time someone posts constructive feedback, reports a widespread hardware flaw, or points out a feature where competing brands like Snapmaker, Bambu, or Creality are genuinely outperforming Prusa, the diehard fanboys rush in to blindly defend the company. Why? Is it buyer’s remorse? Is it a coping mechanism to justify spending a premium price tag by convincing themselves that nothing else on the market could possibly be better?

Instead of addressing the actual technical arguments, the community defaults to gatekeeping, downvoting, and discrediting the user. A perfect example of how bad It’s gotten Look no further than this recent post where a user simply shared their genuine, frustrating experience with a printer.

Because the user used an AI tool to help clean up their English grammar and spelling, the comment section completely ganged up on them. Instead of focusing on the actual hardware issue, people dismissed them, called them a bot, downvoted them into oblivion, and attacked them personally. It got so hostile that an actual Prusa employee Nomad had to step into the thread, verify the user was a real person, and tell everyone to knock it off, he was genuinely helpful to check where was the slip up in communication .

Think about that: Prusa’s own staff had to intervene to protect a customer from Prusa’s own fanboys. Prusa Staff are genuinely kind and helpful while the die hard fans are not. They are actually damaging Pursa's reputation with this behavior.

Constructive Feedback Makes Better Products
No single brand holds a monopoly on good engineering. If another company makes a feature that works better than Prusa's implementation, users should be free to say it without being labeled an anti Prusa troll. If a Prusa machine ships with a defect or fails to meet expectations, calling it out helps the company iterate and produce better products for all of us.

When you silence constructive feedback and bully anyone with an issue out of the community, you aren't protecting Prusa. You are actively ruining the community with toxicity, creating an echo chamber, and shielding a multi million dollar corporation from the standard accountability every consumer deserves.

At the end of the day, we are consumers, not disciples. You should feel completely free to praise any 3D printing company when they get something right, and just as free to criticize them when they mess up. Brand loyalty shouldn't stop us from holding manufacturers accountable or having honest discussions about the tools we buy. We don't criticize for fun or just to complain, we do it because pointing out a company shortcomings is what pushes the company to make better products.

reddit.com
u/Sainroad — 1 day ago
▲ 17 r/prusa3d

What makes the old Dwarf board not compatible with the XL+ upgrade? DIY Upgrades Links Provided

I have Prusa XL 5TH, all 5 tools have the old Dwarf boards 06|2022-11.

What is special about the new Dwarf boards that start with 08|XXXX ? is it that the chips are more heat tolerant for heated chamber? or is it compatibility with eddy sensor?

Ordering the XL+ upgrades with all 5 new boards will amout to ~ $900 including shipping and tax.

seeing that huge price tag, I would rather go the DIY route.

Thanks to the community, they have already made almost all of these fixes/upgrades.

Main MCU Fan

https://www.printables.com/model/868238-prusa-xl-buddy-cover-with-air-vents-and-50mm-fan

Heat Bed PCB Fan

https://www.printables.com/model/946242-xl-heat-bed-fan-mod-for-pcb

360° Cooling Fan

https://www.printables.com/model/1013592-xl-fan-shroud-360deg

Nozzle Wiper

https://www.printables.com/model/678695-nozzle-wiper-brush-pre-leveling-prusa-xl

GT1.5 Belt Mod

https://www.printables.com/model/1771555-xl-belt-clamp-for-15gt-gates-belts

Also the upgrade kit includes 5 HF nozzles that should be optional in the product page for someone who already owns high flow nozzles

u/Sainroad — 7 days ago

Has Prusa's quality control fallen off recently? (Disappointed with my new MK3.5S Upgrade Kit)

TL;DR: Received a new MK3.5S upgrade kit. The xBuddy board arrived with a broken Wi-Fi port and a sheared-off capacitor, and the xLCD is flickering.

Last week, I received my MK3.5S upgrade kit to upgrade my MK3S+, and I finished installing it yesterday. However, when I powered it on, the screen stated that the Wi-Fi module wasn't installed—which wasn't true.

I opened up the xBuddy case to check, and I found a capacitor that had completely fallen off the board. It’s located right above the "HEATBED IN" terminal, so my guess is that it regulates power to the heatbed.

I also checked the ESP port, only to find that 4 of the pins had completely detached from the PCB, tearing the solder pads right off with them.

As for the xLCD, it's flickering heavily and occasionally going completely black. Switching it to "low refresh mode" seems to help. I've already ruled out a faulty ribbon cable since I have other working MK4S printers to test it with.

To their credit, I reached out to customer support and they were incredibly nice. They immediately admitted that both the xBuddy board and the xLCD were defective and needed replacement.

For context, I own four older MK4 printers featuring xBuddy board rev37 (2023) and xLCD 27 (2023-04), and I don't recall ever having a single hardware issue with them. The new defective xBuddy board is rev47 (2025) and the xLCD is v30 (2025-05), both manufactured in 2026 according to their serial numbers.

I’m curious to know if anyone else has run into issues with this specific batch, or if I just got incredibly unlucky with a one-off lemon.

I’m also currently waiting for my Prusa INDX upgrade to ship (I'm in Batch 1). Honestly, experiencing these hardware flaws right out of the box has made me lose a bit of faith in Prusa's QC.

u/Sainroad — 1 month ago
▲ 19 r/prusa3d+1 crossposts

Can a Bondtech INDX for Prusa Core ONE be used on a Voron Trident?

If not, what is stopping me ? Cable connectors? Mounting hardware? Proprietary tool board that works only on Marlin firmware ? What is the connection type to the MCU is it CAN BUS or Serial connection?

I have placed an order for Prusa INDX 8-tool, I have core one and a Formbot Voron Trident R1 350mm Kit that has not been built yet (I'm waiting for r2 release for full INDX support) .

I don't want to be tied with Prusa Eco system specially the build size on core one is very limited compared to the Trident 350mm.

reddit.com
u/Sainroad — 4 months ago

Prusa INDX 8 Tool Overall Dimensions?

What is the overall dimensions of Core One+ with INDX 8 tool ?

I read the product page and the blog, I couldn't find find that information anywhere

prusa3d.com
u/Sainroad — 4 months ago