They'd be the obvious ones:1.) Unreliable extruder design (delrin plunger)2.) Warped acrylic build plates (should have been glass)3.) QA/QC issues with construction or packaging (loose bolts/screws, misaligned gantries, improperly installed parts, etc.)4.) Support staff being completely overwhelmed, unable to respond in a reaonable time frame5.) Beta (more like Alpha) software to go with the printer. People have to fall back to RepG, which doesn't appear to be MBI's intent.
Crystal,For what it's worth, the people at MakerBot (at least, Melody the moderator) read this forum. I'm sure they're aware of the common complaints. Whether they're addressing the complaints, on the other hand, is anyone's guess. The new model (Replicator 2X) appears to have solved the extruder issue. And since they're using a heated bed, the acrylic plate warping won't be an issue.
#1 that is a huge problem is the stepper cable for X failing. This is
clearly a bad design and even worse manufacturing issue. The problem
is, they used the same plastic parts from the replicator, then they
changes to using thing ribbon cables so they needed to make up the gap
and did so with cheap sharp steel rollpins. The tech putting them
together jams this sharp metal against the cable and we expect it to
not short out. Basically, a garanteed failure point on every machine
sold. It's not IF, it's when.
#2 is warped beds which cause endless headaches. This is because the
user first can't get parts to stick to the bed, so they keep making it
closer to the nozzle which causes backpressure and feed issues with
the weak plunger system. Then, if you bake PLA long enough in the
nozzle without extruding, it breaks down and clogs the nozzle so it
will never extrude. So this single problem-bed plate warped, exposes
many other weaknesses of the machine.
#3 is the plungeer whihc would barely work as logn as everything else
is "perfect". If anything else causes higher than normal extrusion
pressure, then you will fail to feed. It also wears out rather
quickly.
#4 is temperature sensor issues. This is just another poor assembly
area and combination of bad design. Other bots smartly use a remote
thermocouple amplifier at the head and good wires rated to flex back
down to the motherboard. Thermocouples must be solid wire by the way
they are made, but solid wire is not meant to take constant flexing,
only stranded wire is. Competitors got this area right, Makerbot just
carried over the same crap design from the T-O-M days.
As you can see, items 2-4 are all related and cause the common failure
to extrude.
On Feb 21, 2:15 pm, Crystal Butler <crys...@superluckycat.com> wrote:
> Hey all,
>
> Since purchasing my own Rep 2, I've been loosely following all the
> technical issues plaguing the machine and trying to keep my own running
> smoothly, with mixed results.
>
> Just now the New York Times ran an article featuring our hackerspace, Hack
> Manhattan, as part of an article on 3D printing:http://www.nytimes.com/2013/02/21/garden/the-3-d-printer-may-be-the-h...
Is there a simple fix for the X stepper Cable shorting problem you mentioned. If this is going to be a point of failurethen I would like to find a solution.
I posted some instructions here https://groups.google.com/d/msg/makerbot/0reFv3QO42g/FlT5LRh9VgMJ on how to use a simple zip tie to replace the steel pin and also act as a strain relief on the cable, which bends back and forth in one place more than I believe it should.
My biggest complaint is that it doesn't seem like MBI is listening - if someone from MBI were to acknowledge the problems we have encountered, explain the steps they are taking to fix them and acknowledged the good work members of their operator community have been doing to help each-other diagnose and solve these problems (with very little guidance from MBI I might add) then maybe we would feel less ambivalent towards them. If Melody reads these threads she sure as hell doesn't participate in any of them in any meaningful way.There was also the reported incident at CES earlier in the year where the MBI Marketing Director allegedly made disparaging remarks about this group - that we did not represent Makerbot's customer base and that we were a fringe group of hackers.I get a lot of thank you emails from members of this group, but the tone of these has recently started changing - this letter below it pretty indicative of where things are at at the moment.Alex,I would like to tell you that I finally got my Replicator 2 working. However, very little of the credit can go to you, your staff or your engineers. That is not meant to be an insult, but it is the truth. I do appreciate that you allowed me to buy the Makercare after the initial purchase, but that is all the credit I can give you. I spent many hours in fruitless frustration, needlessly wasting most of my PLA, when the main isssue was poor engineering and your inability (whether forced by management or by ignorance) to tell me how to fix it.The Replicator 2's extruder is inadequate. The delrin plunger is a horrible design. Its pressure on the advancing PLA is variable when it should be constant. This causes countless jams. Agitating this issue is your acrylic build plate. Even the "flat" replacement plate that I was sent still had defects in it. It was physically impossible to get a consistant level across the plate. levellig with a proper plate is not as difficult as you led on. Lastly, the PLA that you provided was the poorest quality. It broke on the spool routinely and after observing quality PLA in action, it was also a major factor in the cessation of extrusion. Add these factors up and the stock Replicator 2 is not capable of printing the capabilities MB advertises.I don't understand why Makerbot would set themselves up for certain failure. Your customers deserve much more. If you are unaware of the issues then you really need to frequent Makerbot Owners on Google Groups. If you are aware of these deficiencies and haven't taken action yet, then MB has some serious leadership failures. The cost of MB's reputation far outweighs the cost of the fixes that would be required to get the R2 working properly. I shouldn't have had to waste the last three weeks, taking time away from my kids, and addtional money out of my wallet to get a $2300 product working properly straight out of the box. No one should. Especially the people who pay your bills. Do you realize that I've had several potential purchasers ask me about my satisfaction with the R2? People who would most likely have purchased one? I told them exactly what I'm telling you now.Many unassociated individuals have saved the R2's reputation by dedicating their personal time to ensure that the R2s can perform as advertised. Your company owes men like Mr. Thomas, who goes by WingCommander on MB's Owners, a lot. I don't know him but perhaps your engineers should talk to him.Alex, I hope you realize that I'm not personally attacking you and also realize that you are probably being forced to walk the company line. You seemed like a nice enough guy on the phone. However, you and your support team's advice wasted my time and money when I think you knew the real answers to my problems all along. Your company has a product that has major potential for growth in the future. Makerbot can go very far and be at the forefront of 3D printing. However, your company will be left behind if you continue to operate in this fashion, especially when the necessary upgrades to the R2 would cost your company very little. I know for a fact that I am not alone in these complaints. Just do a little bit of reading on your product and you'll see it for yourself.One last note, I've made no physical modification to the R2 or its components which would render my MakerCare void.Respectfully,XXXXI really which I could be more supportive of MBI, because now that my printer works it works beautifully - but no thanks to MBI - after a few week of fun it turned into a nightmare which I had to waste countless hours sorting out. I really wish them no harm, but they do need to get real, fess up, say sorry, fix the problems and change they way they outwardly connect with they community.
Except - why do you feel MBI support is not available in Europe? Europeans don't have email accounts?
Hey all,
In a short while, the M2 will be old news. Competition is heating up.
On Thursday, December 27, 2012 8:15:53 PM UTC-8, JayC wrote:One word, demand.Sent on the Sprint® Now Network from my BlackBerry®From: Chris S <expres...@gmail.com>Sender: make...@googlegroups.comDate: Thu, 27 Dec 2012 19:46:41 -0800 (PST)To: <make...@googlegroups.com>ReplyTo: make...@googlegroups.comSubject: [MakerGear] Price increase - ???Wow...I'm saddened by this price increase. Why?
It isn't like stainless steel, linear rail or electronics prices have gone up.
I must say this form has really open my eyes and closed my wallet shut
as I look at buying he R2x.. I going to go with the better option and
wait till August for the Robo 3d printer...for less then 1/4 of the
price. Perhaps now that there is a few R2 out there getting the bad
word out Makerbot may just pause for a moment to listen as there sales
dry up.
Hey all,
Since purchasing my own Rep 2, I've been loosely following all the technical issues plaguing the machine and trying to keep my own running smoothly, with mixed results.
Just now the New York Times ran an article featuring our hackerspace, Hack Manhattan, as part of an article on 3D printing: http://www.nytimes.com/2013/02/21/garden/the-3-d-printer-may-be-the-home-appliance-of-the-future.html?_r=0
There is a mention of the fact that my Rep2 was non-operational when the Times visited. I've since been put in touch with a couple of service personnel at Makerbot, and would like some opinions as to the top issues with the Replicator 2 before I speak with them, so I can tell whether my problems are typical and also to point out issues that are most ubiquitous.
On Sunday, February 24, 2013 9:07:18 AM UTC-5, Kletus VanDamme wrote:
- show quoted text -
Very interesting to read. I am sure if you look up the place you work at you will find very much the same thing written. Besides how do we not that the guy that left makerbot and gave them the one star rating was not the guy installing the cooling fans backwards.
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Just to provide a bit of balance...I don't think its correct to say that Bre lacks vision - I think he has presented a pretty clear picture of where he thinks 3D printing is heading - whether you agree with him or not is another matter.Transitioning a company from being a startup to a professional organisation is not easy. We can all sit back and monday morning quarterback the situation, but when you are in the middle of it and you have VC funding, critical revenue targets you need to achieve to keep the company afloat and competing stakeholders pulling you in different directions, its really difficult to stand back and chart the right course - let alone chart your own course.Its not a democracy, and founders need to have a firm hand in the direction the business is heading. You also need to be reactive - quoting Clausewitz "No campaign plan survives first contact with the enemy". So I think you will always run into disgruntled employees who do not like the changes that are afoot that come with VC funding - take the open vs closed source model change. A lot of employees also have an overreaching sense of entitlement when they see company founders enjoying the fruits of their substantial risk taking which are often perceived to have come all too easy.Starting a new business, growing it and surviving - and choosing to manufacture in America and not China I might add - is a risky proposition. No-one knows how the 3D printing market is going to shake out, maybe history will show that MBI is making a shrewd move - maybe they are not - who knows? One thing is for sure, they are certainly not out of the woods yet by any stretch.
--
On Sunday, February 24, 2013 9:07:18 AM UTC-5, Kletus VanDamme wrote:
What makes you think the Rep2*'s are built in America? Maybe when it was a wood frame. Certainly the circuit boards and most of the other parts are not.
On Monday, February 25, 2013 5:49:17 PM UTC-5, Wingcommander whpthomas wrote:Tom you also make lots of good points.
The web site and the machine itself are professional looking enough that a my employer (a university) felt comfortable spending 2k on this device. I'm not sure there is another product on the market right this second that I could have gotten approval to purchase.
Yes, the Replicator 2 was the first printer that to my eye looked like a 3D printer you could proudly display in your office. The other laser-cut plywood creations look too hobby-ish for my taste - call me superficial if you must - but my Replicator 2 gets a lot of attention from approving admirers (now that it prints reliably of course ;). The M2 is a close second, but the hot end still looks funky and the Afina isn't bad either, but the Replicator 2 has a serious presence - people have seen them in the media and are really impressed to see one in the flesh - gives me enormous street cred to have somewhat mastered this thing.
The reason I bought this machine was because I was aware of the large and active userbase you all represent.
Same here - but also because MBI for better or worse was trying to design and build something in America at a time when everyone else - including the startup I work for is turning to China - I really want them to succeed on many levels - but I also have enough perspective - been there done that - to know they have a tough battle ahead of them.I also remember the early PC days, and its strangely similar - who can forget the Sinclare, Olivetti, IBM PC, Prime, Wang, Amdahl, the Apple II, the Digital Rainbow, Commodore 64, Osborne, Compaq - and countless other small time imitations - how many of those companies are still household names?I may not like everything they do - but I also accept that MBI needs to do what it thinks it needs to do to survive - after all, until they become cash flow positive, we essentially purchased a 3D printer where the price of it broader product availability (inventory and distribution) and support were essentially subsidised by VC funding - so its a bargain!
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You are one smart dude.
Hi Everyone!
I'm new here, and my company just got a Rep2 and I'm having quite a problem getting the software to install. I also see that dnewman said NOT to print over usb?? If this is correct, then what connection should be used??
Anyway, I'm really hoping that someone can shed some light on my errors so that I can get this up and running.1) it's hooked up usb. If this should change, if you could let me know what connector I should be printing over, that would obviously be greatly appreciated.2) I see that windows 7 (64 bit machine) notices it as via Serial (COM3) when it's plugged into a usb port....3) When installing, it gets to the point where it's waiting for the conveyor to come up, and a "Conveyor slice command failed" error is displayed. Looking at the details, it shows it can't connect to 127.0.0.1:999. Obviously if it won't print over usb, then this could be the communication issue.....?
4) If I launch the makerware.exe after the installation fails, It shows and error connecting to the job management service. Again, my assumption would be because the software didn't install completely so it can' find the right services as they're not properly installed.
5) When makerware is launched, there is a Service Error which again, looks to be a communication error.
I'm guessing that once the communication issue is resolved, then the installation will work and everything will be as good as it should be.
Again, any help or assistance would be greatly appreciated.
Thanks so much, in advance,Neil--
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Thanks everyone!
It finally connected and my user is using repg to print. They seem too be printing via USB ok, but we'll try printing from the card later this week.
Cheers!
Hi Everyone!
I'm new here, and my company just got a Rep2 and I'm having quite a problem getting the software to install. I also see that dnewman said NOT to print over usb?? If this is correct, then what connection should be used??