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10 / 21
Aug 2016

Hi @BHAMHUB3D,

I can ensure you that’s possible to print some excellent Marvins with an FDM machine, feel free to check the pictures below.

I firmly believe that it is a good test. It’s aimed to have an idea of the printing quality that you can provide to our customer. In your case, I pushed back your test because the surface wasn’t smooth and there were some imperfections. If you provide a similar print to a customer, he’ll probably ask for a refund.

If you have any feedback about how we should improve the Marvin review process, feel free to share it.

Federico - 3D Hubs
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Hi @BHAMHUB3D Marvin can be tricky to print, but then it’s a test, so it should be, there’d be no point in having a test that anyone with any quality of printer could pass easily. There are “tricks” for printing Marvin, and they’re all here on this site, even from 3DHubs themselves. I got a fairly decent print of Marvin from a standard Flashforge Creator Pro once I’d experimented a few times, so yes, it’s perfectly possible to do a decent Marvin with FDM.

@federico3 out of interest, do you know what printer produced that rainbow Marvin?

Jon

I don’t doubt even for a minute that it’s possible to get a really great print of Marvin on a desktop FDM. I am just trying to get a general consensus on other hub’s experience with their review process and their customers’ expectations. The pictured example of an FDM Marvin on the “How we review Marvins” page was a terrible print in my opinion and an awful standard/expectation to set. I didn’t think I would have any problem meeting that standard on my first print of Marvin, but later found out that the expectation was MUCH higher than I had originally thought. I am not complaining (to each their own). I just need to know whether or not I want to even participate in this 3D Hubs process altogether, and I can’t do that unless I know where my own standard “sits” on the scale compared to the popular standard. I can’t establish any reasonable judgement of that until I get answers to my question. Thanks.

Thank you Federico. I was able to get a better print. I just haven’t taken pictures yet. I will attach them when I get a moment near some decent lighting.

Hi @BHAMHUB3D it’s difficult (for me, at least) to give any advice without seeing where you’re at with your Marvin prints so far. If you can upload a print of your best print to date (and I see you’ve got a better one from your latest comment), then I’ll happily try to compare it to my best print.

To be honest, I found getting a good photo was almost as hard as the print itself!

Thank you for taking time out of your busy day to come to my thread and insult me instead of answering my question. I sure do appreciate it. We need more people like you around here. I especially like how you use a subjective word like “perfect” without any visual representation of what you really mean. Perfect to what degree?

To answer your question:

I was quite happy with the review I got (which was a perfect 20 stars). Bear in mind that I’ve been printing for about a year, and have been perfecting my Marvin for around 6 months. The Marvin I posted wasn’t totally perfect, I would have been happy with 4 stars on the print quality side of things, but I followed the instructions and got a perfect review.

When I first learnt about 3DHubs I rushed out and printed my first Marvin. It was abysmal. I couldn’t believe that others were getting such great results out of FDM printers either. I stopped rushing and took the time to figure out how to get better print quality – which obviously affects other parts that I print as well. After printing probably around 50 marvins over a period of 6 months, I’ve got my settings pretty well dialled in now. Like I said, it’s not perfect, but it’s close to the limit of what my heavily modified cheap chinese kit printer can achieve.

I think that the reviewers are more generous with their ratings than I would be (at least the one who reviewed my hub was), for which I’m grateful. If they are knocking you back, then I’m pretty sure that there’s a valid reason for doing so.

Don’t take it personally, just have a good look at why it was knocked back, and expand your Marvin army. You (and your future customers) can only benefit from the result.

You aren’t mindFULL, you are mindSET. Please demonstrate to me where I refused to post pictures. Posting pictures of my print has nothing to do with my question. If I were looking for what I didn’t want to hear, I would not have even bothered asking the question. If folks wanted to help me, they would answer my question. I guess whether or not someone would examine a print on the microscopic scale depends on their expectations. Right? I’m not saying that perfection on the microscopic scale is a reasonable expectation, I just wasn’t sure that you understood a “perfect” print is subjective even as a matter of scale.

12 days later

Hi @federico3, I uploaded a pic of my latest print a couple weeks ago and commented on the order, but haven’t heard back. The order was cancelled about 12 hours before I uploaded the new picture. The order page said I could “bump” your attention by commenting. It also mentioned a “checkbox” that I shouldn’t forget, but I am unsure what is meant by that.

Hi @BHAMHUB3D

I left a review on your Hub profile, I didn’t receive any notification for the new pictures: I apologise for the late answer.

Federico