BLV mgn Cube - 3D printer Project

MegaAndy · 1 Feb 2019, 18:47

@wilriker Hi, you have two options:

to stick a flexible sheet of adhesive magnet (i don't like this option, since the flex magnet sheet is not flat at all areas)

The best option to my opinion: stick high temp 12 magnets with 3M adhesive (in the BOM i gave a link for the magnets and sticker in one place) in on top of them the Bed insulation.
I also made an image that will explain it:

@Blv I am glad you have posted this way of fitting a magnetic sheet. I have been considering this exact method recently while searching Aliexpress and its good to see someone else doing this method to confirm that it's not a silly idea

OG3D · 2 Feb 2019, 00:11

@Blv I'm impressed with your documentation, Great Job.

JamesM · 12 Feb 2019, 12:14

I'm looking to build a corexy in the next few months and stumbled across this on thingiverse and am interested. I wanted to point out for the magnetic heated bed, Aliexpress has a 300 watt 300x300 heated bed with the magnets already attached and it comes with a spring steel top. I have one on order to try on my Taz 6 printer and figured you may be interested.

Here's the link.

https://www.aliexpress.com/item/3D-Printer-Magnetic-Heated-Bed-24V-Wiring-Thermistor-Kit-With-Steel-Sheet-300-300mm-For-Anet/32959212466.html?spm=a2g0s.9042311.0.0.3ef24c4di7fAad

thwe · 2 Dec 2019, 17:53

Great respect to your work!

Your doku is really good and you have really put in a lot of time - no children and no woman at home?

I like your belt guide and the belt tensioner!
Which sense has the deflection at the corners?

Your doku is really good and you have really put in a lot of time - no children and no woman at home

I like your belt guide and the belt tensioner!
which sense has the deflection at the corners?

PS: Today I have ordered the hardened replacement balls for the MGN12 - suuuuper tip!

BLV · 1 Mar 2019, 17:04

@thwe said in BLV mgn Cube - 3D printer Project:

Great respect to your work!
Your doku is really good and you have really put in a lot of time - no children and no woman at home

Thank you, you will be surprise to know that i do have wife and small children..
Making it took tons of time, stress and angry wife.. but it was worth it

Gleison · 17 Mar 2019, 00:01

Queria modificar alguns arquivos, você consegue disponibilizar os arquivos 3D dos itens ?? o que você disponibilizou não consigo ter acesso as pecas.

Phaedrux · 17 Mar 2019, 00:50

@gleison said in BLV mgn Cube - 3D printer Project:

Queria modificar alguns arquivos, você consegue disponibilizar os arquivos 3D dos itens ?? o que você disponibilizou não consigo ter acesso as pecas.

Translate: I wanted to modify some files, can you make the 3D files available for the items ?? What you have made available can not access the parts.

Do you mean CAD files?

Gleison · 17 Mar 2019, 01:04

@phaedrux isso mesmo, os arquivos CAD de todos os itens para que eu possa editar.

Phaedrux · 17 Mar 2019, 01:33

@gleison said in BLV mgn Cube - 3D printer Project:

isso mesmo, os arquivos CAD de todos os itens para que eu possa editar.

Ave you looked at the thingiverse link? It looks like a lot of the step files are there..

https://www.thingiverse.com/thing:3382718/files

Gleison · 17 Mar 2019, 02:23

@phaedrux estão apenas os arquivos STL e esse tipo de arquivo eu não consigo alterar.

Phaedrux · 17 Mar 2019, 04:49

@gleison there are STEP files as well, but maybe not for everything you need. That would be up to @Blv

BLV · 17 Mar 2019, 19:38

@phaedrux
98% of the project step files can be found there.

Mogal · 29 Apr 2019, 23:51

Can this be made with nothing but 2020 extrusion?

I built an original hypercube but the rails/bearings are garbage.
I bought the mgn12 rails to replace them when I came across this BLV.
so I only have 2020 extrusion I would like to use.

Thanks!

Veti · 30 Apr 2019, 05:27

@mogal said in BLV mgn Cube - 3D printer Project:

Can this be made with nothing but 2020 extrusion?

it should be possible, but you will lose rigidity.

BLV · 30 Apr 2019, 16:14

@mogal before i published the project, i had to run countless software simulations, hw tests and so on.
Using 2040 is very crucial for the rigidity of the frame. Unfortunately, at least two of the guys that tried to use 2020 instead of 2040 had massive ghosting/ringing and problems related to frame changes.
I would advise you to stick with the original frame design..

Mogal · 1 May 2019, 14:34

Thanks guys, I completely understand the rigidity with 2040.
I just don't have the resources to get any at this time.

As long as it can be done, I can get the printer working reliably again.
I'll just keep the speeds and acceleration a lower to help prevent the ringing.

Thanks!

Warren.Abraham · 18 Jun 2019, 09:54

Incredible project and the amount of work you have put in is unbelievable, thank you for sharing!
Question: Have you ever looked at a larger bed size than 300mm? The height at 665mm is perfect for what I'm looking to build but I'd prefer a larger bed at 400-500mm and wondered if this had ever been covered.
I look forward to any feedback.

Veti · 18 Jun 2019, 10:50

at a build plate of 500 i would expect that the 2 rails would not be enough to ensure the stability of bed.
you could modify the build and add 2 additional rails and obviously the front panel would not fit anymore.

if you are not comfortable about doing your own mods you could have a look at the voron 2.1, which allows for such build volumes

Warren.Abraham · 20 Jun 2019, 07:53

@veti said in BLV mgn Cube - 3D printer Project:

at a build plate of 500 i would expect that the 2 rails would not be enough to ensure the stability of bed.
you could modify the build and add 2 additional rails and obviously the front panel would not fit anymore.

if you are not comfortable about doing your own mods you could have a look at the voron 2.1, which allows for such build volumes

Thank you for the response! That looks like a really viable option.

BLV · 23 Jun 2019, 04:01

@veti said in BLV mgn Cube - 3D printer Project:

at a build plate of 500 i would expect that the 2 rails would not be enough to ensure the stability of bed.
you could modify the build and add 2 additional rails and obviously the front panel would not fit anymore.

if you are not comfortable about doing your own mods you could have a look at the voron 2.1, which allows for such build volumes

@Warren-Abraham
For bigger bed plate i would recommend adding one more rail (3 z axis setup) and using auto ture leveling. It will be much better then using 4 rails. (Installation of 4 rails is a nightmare)