mohan

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mohan
@mohanpandey
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July 2018

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#1674
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2 days 16 hours ago - Commented on flashforge finder wont extrude during print job

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hello,

i had the same issue 

So I followed Flashforge's video on cleaning the nozzle:

It's printing at the moment, which is great news, but I don't think this is the fix to the underlying problem. I managed to get a print out last night after loading and unloading filament about 5 times. Could the root cause be something as simple as the nozzle needing to sit pre-heated for a few minutes prior to a print if the printer has had chance to completely cool?

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2 days 16 hours ago - Commented on Wanhao i3 stops printing

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hello,

A printer stopping mid print can be due to a few possible issues:
Faulty Gcode
Which slicer are you using? And which profile?
Temperature sensor having issues:
Usually Decoupled or Defective are what should stop a print immediately:
Decoupled is a test, in which the printer monitors the temperature sensor to see if the heater responds to heating command within the expected time (if not, either the heater no longer works, or the sensor is not thermally connected to the heater - both of which means that the sensor's value is no longer reliable and the heater is uncontrolled -> switching everything off is the way it avoids burning your house down).
Defective is when the sensor gives a value that is outside of the expected range, either too cold or too hot. The hot-end have an absolute maximum of ~270C (this should not be reached ever), but an incorrect or faulty sensor can give a temperature reading of more than that, and thus it shuts everything down, since the sensor might be defective.
More details can help problem solving.

 

Initially I did not reply to this thread since it is a Di3 Plus, of which I have very little knowledge and no experience, hoping someone else will reply, that did not happen.

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1 week 2 hours ago - Commented on Export R object for 3D printing

1 week 5 hours ago - Commented on Advice on Original Pursa i3 MK2

1 week 8 hours ago - Posted a new Thread

Hi everyone! I've recently gotten the nerve to buy a 3D printer. I asked for some advice on what to buy yesterday and was meet with a surprising amount of feedback! So thank you guys for that.

1 week 9 hours ago - Commented on PETG is not sticking to the print bed.

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hello,

 have printed almost 1kg of filament and it's been working flawlessly. 
Due to the online information that PETG is prone to stick to the bed so much that it can be hard to remove I have not used IPA to clean the bed, I just wiped off the dust with my bare hands, intentionally getting some oil onto the bed.

I even printed a U-profile, standing on the U-end, where I was pretty concerned about it coming off, and it stuck.
It's the part in the center-right of the photo.

What seemed to be very important is the temperature, at the 85 to 90°C bed temperature during printing, the PETG sticks very well, when the print is finished letting it cool off makes the prints pop off pretty easily.

Check the first layer height and temeprature, if those are right PETG should stick just perfectly!
It's a nice material to print with (I used Hobbyking PETG, but have 2 more rolls of Prusa PETG ready)

BTW, the print quality on these prints was OK, but I printed more of those parts after the latest Slic3r update and the new prints came out much cleaner, with less stringing and smoother surfaces.

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1 week 9 hours ago - Commented on 3D printing of rubber vacuum cups

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hello, alan did you post this same topic in shapeways community too?

if you didnt i would advise you check the discussion they had for the similar topic you are actually talking about-https:// www. shapeways.  com/forum/t/3d-printing-suction-cups-and-suction-grips.18278/

i found this following answer relevant alan but you do check out the discussion

Water is a liquid, air is a gas = it'll leak air even if water doesn't flow through.
There is no way that the surface of a 3D printed model no matter the material is ever going to be airtight against a flush, smooth & flat surface without lots of post production finishing - you need a flat surface against a flat surface along with a relative vacuum for something to work as a suction cup.  UC Browser Apk  SHAREit Apk  MX Player Apk

For pick & place operations, forget about any material Shapeways has to offer unless the cost of failure is an associated cost of prototyping a product that can be made via means other that 3D printing.
fwiw a single suction failure on lifting a pallet layer of glass bottles for a productrion line can cause the entire load to be dropped and upwards of 3 hours for the cleanup... line down, N'0000's productivity down, 3 to 20 people getting paid to sweep up (been there, done that and got paid very well for cleaning up broken glass for half a day)

1 week 9 hours ago - Commented on Is SLA Cost Effective For Low Volume or Infrequent Printing?

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hello,

SLA is a great option for highly detailed prototypes requiring tight tolerances and smooth surfaces, such as molds, patterns, and functional parts. SLA is widely used in a range of industries from engineering and product design to manufacturing, dentistry, jewelry, model making, and education.but the main benefit of SLA lies in its versatility. Material manufacturers have created innovative SLA resin formulations with a wide range of optical, mechanical, and thermal properties to match 
The combination of low cost per part, high productivity, and established materials make SLS a popular choice among engineers for functional prototyping, and a cost-effective alternative to injection molding for limited-run or bridge manufacturing.

 

i would advise you see this article-https:/ /formlabs .com/blog/fdm-vs-sla-vs-sls-how-to-choose-the-right-3d-printing-

technology/ Tutuapp TextNow  Photomath

 

it shows you  a complete comarison betweenFDM vs. SLA vs. SLS

1 week 3 days ago - Posted a new Thread

If I have a data set in R, what would be a good way to export it so I could get it to a service like Shapeways for 3D printing? I don't have any "real" CAD software, but I've used Google Sketchup before. In my case the object can be described by two surface plots, something like this: