The printer on the news...

Hi Guys,

I am extremely happy with the news all over the world about the printer results, many translations, including in my country (Brazil)...

If you want to see the links, please google Junior Veloso 3d

I have some great results and news to share soon... keep following the blog...

Cheers,

Junior

In Portuguese/ em Portugues

Oi Pessoal,

Obrigado pelos acessos ao blog, moro em Cingapura ha varios anos e fico feliz em ver as noticias em diversos blogs e sites no Brasil.

Abracos,

Junior

high resolution pic...

Hi all, just want to share a high resolution picture of the object... it is really good.. very smooth...

You can see some lines because the image was taken with powerful macro lens (microscope) as the space between the lines are 100 microns (human hair thickness). With naked eyes you see a very smooth object.

This resolution can be improved, currently I am using 100 microns and I believe I can go down to 25micros... I will test soon and post the results here...

Cheers,

Junior

Forgot to mention on previous post...

The time to print the brain gear was same as to print Venus (around 5 hours)... most of the 3d printers in the market would need more time to print a very complex object.

That's is the main advantage of this process, the object complexity does not affect the printing time as you print full layer each time.

Regards,

Jr

Big challege for the printer....

This weekend I decided to test the printer capability on printing very complex object that would need complex support structure. The "brain gear" was the select object...







There was a need for big number of support as you can see in the picture on the left.

One big mistake was the support thickness choice, I have used 1mm trickiness support, which was too much because in some places the support merged with the object and I damage a little bit removing it as you can see in the last picture.


This is the detail of building... huge number of supports....


Looks very nice... I will post short video on youtube soon...




The quality is amazing, I got very smooth surface without any finishing...

BTW, special thanks to my friend Daniel Alenquer who join me these weekend for tests and brought his brand new super macro lens. Also thanks to Tiagao e Gustavao, who came here to see the printer... I hope having you guys back here soon and some other friends visiting us as well.




This is the final object, it is around 6cm tall. As you can see I damaged the bottom part of the object while removing the support...

Additionaly, while cleaning the printed object, I damaged the bottom part using isopropyl alcoho ... still looking for perfect post printing solvent.... I got some suggestions from Malu... let's try!!!

I will print this object again soon, and improve the quality with the lessons learned so far... but I think is pretty good for second object.

Are you kidding me?????

Hi guys,

I was not expecting a very precise model... but by coincidence or something else the calibration worked very well.....

High resolution pic...

Hi Guys,

I am posting a resolution picture so you can see the printing quality... I left the Venus for around 4 hours in the sun.. now it's hard as rock...

And the good news is that the resolution can be improved if you print in thinner layer... I also believe that once I get the coated glass the resolution will be great!!!

Cheers

Junior

Before someone ask....

- Over 5 hours to print...
- Layer thickness 0.1 mm
- Curing time 8s
- around 650 layers
- Result is very hard plastic
- Object is halo, wall thickness 2mm
- I will start using white dyes... easy to paint later...

cheers

Junior

Last post and few findings...

Hi Guys,

time to go to bed...

Few findings...

1) YES TEFLON is the solution... THANK YOU ROGER AND EVERYONE FOR THE SUGGESTIONS!!!
2) I am sure the resolution will improve a lot once I use the coated glass as the there was many microscopic bubbles between the Teflon film and bottom
3) the resin and dye works very well, there was no curing beyond the layer... no "shadow"\
4) there are many visible lines on Venus, the main reason was that I stopped the building process many times to see the result and brought the object outside the resin many times...
this may have changed a little bit the position when returning back to the bottom and create those lines... they are exactly where I stopped.... this won't happen in the continuous printing...

Very happy today with the results....

Cheers,

Junior

Final results.....

See the final results... still need to put in sun for final curing....

It's alive....

Hi Guys,

The result was far better than I was expecting... I will let the images tell....


This is the object (Venus) that I printed... and before someone ask what is behind her... It is just a small object that I am using to calibrate the printer (building area, curing time, etc...)







Doesn't look good... let's wait little bit more to see whether this printer works or not....

:)





What is that? I can see something... after few hours....

Many things to share today....

Hi Guys,

I have many things to share today... all good things...

I am waiting for a glass coated with Teflon from Roger (great friend from 3D Printer list) and I can't wait to get my hands on this.. thank you very much Roger for all suggestions and support... and thank all guys from the list for the suggestions!!!!

While waiting for the Teflon glass I bought some Teflon film on e-bay... just to see what is this ??? never saw transparent Teflon in my life... my Teflon knowledge was limited to kitchen...

The Teflon arrived yesterday and I could not wait to test... you will see the results...




This is the Teflon I received....







Okay... let's test it....
I use a double tape to stick the Teflon in the polycarbonate tray... it was not looking that professional but you will see the results..








At the end I manage to get very ugly building tray.... hehehehe

Good looking Printer...

Hi Guys,

While waiting for a solution for the bottom stickiness I spent sometime "beautifying" the printer, actually most of the things I have done are was mainly to avoid external light source that could cure the resin and improve the printer.

Really looks nice now...







Most of the things are made from acrylic sheet. The transparent red acrylic protects the building area from external light.. pretty cool...

Cheers,

Jr