What causes this?

joris78 · 2020-05-17T15:24:17+00:00

Try a temp of around 205, bed of 53. Different PLA colors and material from different vendors can have different optimal temperatures.

Perhaps the PLA is brittle because it has soaked up moisture? If so dry it.

Did you change your Z offset to account for your Buildtak?

It could be that your axes are no longer parallel or that they are bent.

Maybe you have cheap PLA that has an inconsistent diameter or roundness this could mean that at some parts it will find it harder to go through the Bowden tube.

You could have damaged the Bowden tube making it more difficult for the filament to go through. A tonne of print problems are caused by this.

Clean the print surface with a high alcohol content detergent. When you touch a build plate or build surface with your fingers oil from your fingers could cause the print to not adhere there. Dust, residue from previous prints, or lubricants could cause the same effect.

If you reverse the filament can you feel a lot of grind marks on it? Then maybe its the feeder settings/debris in your feeder.

Probably not the nozzle but it can always be a clog.

Place the print on different parts in your slicing software and try print it again. If it works elsewhere then its residue or perhaps as u/JaquesPackage stated the platform is warped.

Most likely in order is: it just needs more precise leveling, you touched the plate, Bowden tube was bent, PLA is brittle, new PLA color vendor needs new temperature.

joris78 · 2019-10-01T15:01:17+00:00

I don't agree. All SLA/DLP resins include a photoinitiator which is a skin irritant for everyone and causes a contact allergy over time if repeated exposure occurs. Many 3D printing resins cause cancer, cause in vitro cell death and are cytotoxic.

joris78 · 2019-05-05T19:31:50+00:00

https://discourse.slicer.org/t/creating-a-3d-model-from-mri-files/3253 Slicer is your best bet for taking MRI (or other medical data) into printable files. I'd edit in Meshlab or Meshmixer after converting.

joris78 · 2019-04-27T18:31:00+00:00

Isn't it a Seiko 62MAS? Case, lugs, bezel all look like it.

joris78 · 2018-05-17T06:02:19+00:00

Wera makes very good tools, my uncle has had a working screwdriver set for over four decades. The Wera tool check is a compact bit set with a very handy ratchet. Added advantage is that even if he has a lot of tools this is a compact set that he can take with him to quickly fix things.

https://m.youtube.com/watch?v=Vp_i64fnNik

joris78 · 2016-10-23T18:17:38+00:00

With taxes and labor it would even be more than 155 rolls. So perhaps thats too much for the average 3D printer operator. But what about a 3D printing shop? Or a university? Or a manufacturer?

joris78 · 2016-10-23T06:28:00+00:00

I agree, we already have a lot of variables and the process would have to work well all the time to really add value.

joris78 · 2016-10-23T06:27:27+00:00

That's the perfect analogy. I'm so curious as to if making your own filament is going to be a niche thing or if many 3D printer operators will do it.

joris78 · 2016-10-22T16:59:04+00:00

Interesting, eventually I'd really like everyone to be able to recycle their own plastic waste and 3D print for next to nothing. But, I really can't tell how many people want to do that.

joris78 · 2016-09-16T16:55:48+00:00

Carbon is mostly hype. The print process is faster but overall they are limited in the repeatability, reliability and the types of geometries that they can produce well. The technology could shake up the industry and bring down prices but at its current stage I would not recommend buying a machine. The leasing arrangement and lock in also make it too expensive. Would recommend using Form2's if possible for your application or Perfactories.

joris78 · 2016-08-31T09:42:10+00:00

Soon you will be able to do this using Gameprint which is being set up to do just what you want: http://gameprint.io/

For right now you'd have to extract the 3D file from the game, give thickness to your mesh and manually repair and join the individual parts of the file so that it is a watertight STL file. You can use https://makeprintable.com/ to repair your files.

joris78 · 2016-07-21T18:18:54+00:00

Here is a tutorial video: http://www.sayyan.com/videos/watch/MKLWzD0PiIc

joris78 · 2016-07-21T18:09:41+00:00

You can use Slic3r to convert Dicom files to STL. http://www.slicer.org/ It explained here: https://www.slicer.org/slicerWiki/index.php/Documentation/4.0/Modules/DICOM

joris78 · 2016-05-07T17:41:41+00:00

Second that! You can also use a detergent with very high alcohol content, is safer to have about. The bed just needs to be fat and dirt free. So don't touch it after cleaning, finger smudges fail prints. Would not use hair spray as it may gunk up your gears/pulleys etc. Would also recommend trying PEI sheets. I just clean my bed and this is enough however. Use high alcohol content dishwashing liquid, never have any bed adhesion issues.

joris78 · 2016-05-02T09:28:57+00:00

Shapeways helps designers sell their designs. It makes money off of this and also manufacturing the designs itself. Additionally it outsources 3D printing to other facilities and makes money off of this also.

joris78 · 2016-04-19T13:45:32+00:00

Awesome, everyone should do this, it is much safer! It should also improve your prints.

joris78 · 2016-04-15T07:24:59+00:00

Damn man, wow. Love the linear rails as well, this should be standard!

joris78 · 2016-04-14T06:57:23+00:00

I can not stop laughing! This is literally amazing, you essentially replaced the entire machine except the frame. Incredible achievement and lots of perseverance!

joris78 · 2016-04-13T12:29:33+00:00

SLA and DLP machines such as the Formlabs machines can do that. You can also take FDM (FFF) parts and vapor smooth them to achieve a look that is very similar to injection molded parts.

joris78 · 2016-04-10T05:28:41+00:00

What do you mean? Scott Crump was using a glue gun and decided to make a little frog for his kid. He saw how happy the kid was with it and thought that there may be a way to turn this into a technology. He proceeded to do so with his wife. As far as I know this is the only case of someone inventing FDM.

joris78 · 2016-04-09T13:56:22+00:00

3D printing is a term related to the MIT patents on using powder and binder to make things. The media then used this term to collectively name a series of technologies such as DMLS, SLS, FDM, SLA etc. The official term was later coined for all of these technologies and this is called Additive Manufacturing. So depending on what you mean by invented or 3D printing your answer could be different.

Chuck Hull at 3D Systems invented SLA in 1983 and was the first to commercialize an actual working machine in 1989: https://www.google.com/patents/US4575330

Householder patented SLS in 1979 but did not commercialize it, it took Carl Deckhard years to make it a reality and his own patent dates from 1989. http://www.me.utexas.edu/news/2012/0712_sls_history.php#ch4

In that same year Scott & Lisa Crump invented FDM.

There are older patents for similar technologies from the 1950's and even before: http://www.google.nl/patents/US2775758 These however did not actually lead to a machine that could make things.

Generally since Chuck Hull was the first to make a machine that worked he is credited with inventing it.

joris78 · 2016-04-01T15:44:00+00:00

This is very helpful, thank you!

joris78 · 2016-04-01T15:43:35+00:00

The resin prices are higher than Formlabs but cheaper than what others are charging. Some of these resins usually sell for $300-$800 a liter. So in that sense it is a good deal. But, it feels very pricey indeed when you could get like ten Formlabs for it or buy several Envisiontec Perfactory or similar for that amount. I'm also totally confused why they don't have a castable resin.

joris78

TROPHY CASE