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Original Prusa MK4

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Re: Original Prusa MK4

#231

Post by deelowe »

sydd wrote: post #130
rhinoceraptor wrote: post #12

These look like very solid improvements over the MK3S+ (I personally have two MK3S+, and use them a lot), and I love their commitment to open hardware and for making upgrade kits available, but it's a bit disappointing to see still how far Prusa is behind truly next-gen printers like the Bambu Lab X1-Carbon.

Is it really? I've looked at the Bambu Lab printer and while on paper it looks nice I would be very hesitant to buy it, their "advanced" features not that convincing: - IMO multi material printing has always been a buggy gimmick (mostly multi material setups are very prone to failure). - Them advertising that the printer can print "advanced" materials like PC is a gimmick too, the main issue with FDM printers is laye…

Being able to print pc isn't a gimmick. They point this out because it's one of the hardest filaments to print. PC isn't used a ton by hobbyists but it is extremely popular in industry.

Re: Original Prusa MK4

#232

Post by deelowe »

manual89 wrote: post #171
svachalek wrote: post #164

Earlier quoted context omitted.

My experience with repairability on Prusa is pretty awful, lots of $1 parts that need to be airmailed from Czechia for $50. At least the Chinese stuff is easily available.

If you're in the US, printed solid is basically prusa's US arm now and carry a majority of their parts.

Their prices are higher than prusa. It's cheaper to buy direct. The savings on shipping isn't enough to offset the cost.

Prusa is pretty open about this. They purchased ps so they could get government contracts in the US. It wasn't about improving retail costs for the average consumer.

Re: Original Prusa MK4

#234

Post by serf »

Symbiote wrote: post #144
rhinoceraptor wrote: post #12

These look like very solid improvements over the MK3S+ (I personally have two MK3S+, and use them a lot), and I love their commitment to open hardware and for making upgrade kits available, but it's a bit disappointing to see still how far Prusa is behind truly next-gen printers like the Bambu Lab X1-Carbon.

Personally, I think buying any Chinese product when an alternative exists has become unconscionable. China's current support of Russia is an obvious issue, as well as their threats towards Taiwan and their destruction of democracy in Hong Kong. Problems with IP infringement abound, and in this case it's particularly disappointing as Prusa is committed to open source. I hope Prusa continue to innovate, but I also hope…

You're still supporting China with a Prusa purchase.

The power supplies are built by Delta Electronics, the bearings and rods are (usually) Chinese supplied, the fans flip between China and misc SE Asia suppliers (Noctua) , the steppers are from China (LDO)... the list probably goes on.

You could make an FDM printer with exclusively American (or otherwise) parts, but the price tag is going to be astronomical.

Re: Original Prusa MK4

#235

Post by squarefoot »

golem14 wrote: post #139
asveikau wrote: post #100

Earlier quoted context omitted.

> Your loss! This reminds me of an attitude I see in some of these hobby communities. The idea that someone who is happy with a different product is somehow wrong or losing. People are highly invested and identified with their choices. Why not just be ok with choices other people make, even if we disagree with them?

Always been that way. Ask any Atari ST user about Amiga and vice versa.

Lamborghini v Ferrari, Beatles v Rolling Stones, Chanel v Dior, Dems v GOP, Apple v Samsung, C++ v Java, ...

No matter the context, polarization will always happen, and is sometimes fueled on purpose to turn opinionated users into religiously hooked fans.

...and BTW, Amiga crushes the ST any day:^)

Re: Original Prusa MK4

#236

Post by jdietrich »

deelowe wrote: post #230
Filligree wrote: post #83

Earlier quoted context omitted.

I have a Mk3S and a Bambu X1C. The Bambu is much, much better. The Mk4 covers most of the distance, but at a price point matching the X1C, and it's only most . Speeding it up is nice, but... pressure advance depends on detailed characteristics of the filament, such as viscosity, which varies from brand to brand and color to color . The X1 has a lidar, which from experience actually does work as advertised. The Mk4 ha…

Why are you comparing lidar and pressure advance? They arent related. Also, I thought the Bambu printers had pa in their firmware as well?

Both the X1 Carbon and the Prusa Mk4 support pressure advance, but the X1 Carbon can automatically calibrate pressure advance using the LIDAR sensor. It prints a bunch of lines at various rates of speed and acceleration, then measures the actual printed line width to calculate a PA value. With the Prusa, you need to manually calibrate PA for each filament.

Re: Original Prusa MK4

#237

Post by r0l1 »

tcoop25 wrote: post #75
rhinoceraptor wrote: post #12

These look like very solid improvements over the MK3S+ (I personally have two MK3S+, and use them a lot), and I love their commitment to open hardware and for making upgrade kits available, but it's a bit disappointing to see still how far Prusa is behind truly next-gen printers like the Bambu Lab X1-Carbon.

I just canceled my X1-Carbon order. Just spend some time on the Bambu Labs subreddit and you will see a lot of frustrated owners. It is insanely loud, and it seems unreliable and buggy. I have owned a lot of printers over the years, and the only printers I, or any of my colleagues come back to are Prusa printers. They are incredibly reliable. The few times we have had issues with a part, we have been able to print a…

I can only suggest to go with the Snapmaker. Only made good experience with it and it can also do laser engravings and CNC milling (simple stuff).

Re: Original Prusa MK4

#238

Post by regularfry »

foxylad wrote: post #194
dividedbyzero wrote: post #135

Earlier quoted context omitted.

I have a Mini too, and I could see myself get a MK4 as the Mini has been a bit of a disappointment. The X and Y axes on mine aren't 90° and there seems to be no hardware adjustment (just a rigid printed part), no support for software adjustments either (the respective GCode is disabled in firmware), so I can't print proper rectangles, just parallelograms, and any boxes and lids I print never fit properly. I want to k…

Very happy early Prusa Mini owner. I do remember some difficulty when assembling it, which lead to non-square axes. After an hour or so I eventually got right, so you might want to try redoing the tower assembly. I don't have a filament sensor (I also print mainly small parts, so rare to hit the end of a spool), and haven't had any problems with heating elements, z steppers or nozzle crashes. I did experience the ext…

I had clogging problems on mine - three or four different fixes to sort it out, and the thing that finally nailed it was replacing the PTFE hotend lining with Capricorn. It's been fire-and-forget since then.

Re: Original Prusa MK4

#240

Post by [deleted] »

serf wrote: post #234
Symbiote wrote: post #144

Earlier quoted context omitted.

Personally, I think buying any Chinese product when an alternative exists has become unconscionable. China's current support of Russia is an obvious issue, as well as their threats towards Taiwan and their destruction of democracy in Hong Kong. Problems with IP infringement abound, and in this case it's particularly disappointing as Prusa is committed to open source. I hope Prusa continue to innovate, but I also hope…

You're still supporting China with a Prusa purchase. The power supplies are built by Delta Electronics, the bearings and rods are (usually) Chinese supplied, the fans flip between China and misc SE Asia suppliers (Noctua) , the steppers are from China (LDO)... the list probably goes on. You could make an FDM printer with exclusively American (or otherwise) parts, but the price tag is going to be astronomical.

[deleted]
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