BLV mgn Cube - 3D printer Project

BLV

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

Mogal

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

@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

@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

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

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

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

@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

@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)