nanoDLP

yonray

Member

Registered: 2016-06-11

Posts: 8

Support Generation and Top Down Printer with Direct Control

Dear Shahin,

I am new to your forum, I have just stumbled upon your great software.  Now I am excited to build my own top down 3d printer using direct control.
however there are some things I want to understand first:

1) Which software is used for support generation, and do you have plans to include this feature in NanoDLP?

2) What is the sequence of the program for direct control? For example:

Under "Printer Profiles"

"Edit Profile" Settings

        "Normal Layers":

                                -Layer Thickness = 30Micron
                                -Cure Time = 4 Seconds
                                -Wait Before Print = 2 Seconds
                                -Wait After Print = 0025 Seconds
                                -Lift After Print = 0.035 millimeter
                                -Wait After Lift = 2 Seconds

     
          "Burn In Layers":

                                -Number of Layers = 3
                                -Layer Thickness = 45 Micron
                                -Wait before print = 3 Seconds
                                -Cure time = 8 Seconds
                                -Wait after print = 0.035 Seconds
                                -Lift after print = 0.045 millimeter
                                -Wait After lift = 3 Seconds

Is this what goes on in the actual operations?

A. Platform moves to first layer
B. Wait before Print = 3 Seconds
C. Projector display image (Cure Time = 8 Seconds)
D. Wait after print = 0.035 Seconds
E. Lift after print = 0.045 millimeter
F. Wait After lift = 3 Seconds

Repeat steps C to F for the remaining 2 layers (Burn in Layers), then continue to G

G. Projector display image (Cure Time = 4 Seconds)
H. Wait After print = 0.025 Seconds
I. Lift After print = 0.035 millimeter
J. Wait After lift = 2 Seconds

Repeat steps G to J until no more layers are left and the proceed to homing position.

3) What is the purpose of "Platform Wait Position" and "Resin Depth", not sure what setting to place for these, for a Top Down setup with Direct Control.

4) How should I setup "Motor Speed" settings can I leave these blank?

5) How should I setup "Advance Setting" can I leave these blank?

6) What can I use with "Lift After Print" setting to let the Platform go down a notch in the resin after that layer is exposed and come back up to the next layer? Just like mandreas setup in his video

Sorry for these many questions, I just wanted to understand fully how it operates and what setting controls what. I have a Raspberry Pi 2 with Rasbian Wheezy operating system and already loaded your NanoDLP software to it. Later I will use Jessie Lite operating system. I have seen the schematic for direct control, I will get the parts and beginning making the circuit.

Thank you, the rest of your team and the members of this forum for their input, time and effort for this great software!

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Support Generation and Top Down Printer with Direct Control

Dear Shahin,

I am new to your forum, I have just stumbled upon your great software.  Now I am excited to build my own top down 3d printer using direct control.
however there are some things I want to understand first:

1) Which software is used for support generation, and do you have plans to include this feature in NanoDLP?

Theoretically it is possible to put support generation into nanodlp but performance wise it would be very usable.
You can use meshmixer or b9

2) What is the sequence of the program for direct control? For example:

Under "Printer Profiles"

"Edit Profile" Settings

        "Normal Layers":

                                -Layer Thickness = 30Micron
                                -Cure Time = 4 Seconds
                                -Wait Before Print = 2 Seconds
                                -Wait After Print = 0025 Seconds
                                -Lift After Print = 0.035 millimeter
                                -Wait After Lift = 2 Seconds

     
          "Burn In Layers":

                                -Number of Layers = 3
                                -Layer Thickness = 45 Micron
                                -Wait before print = 3 Seconds
                                -Cure time = 8 Seconds
                                -Wait after print = 0.035 Seconds
                                -Lift after print = 0.045 millimeter
                                -Wait After lift = 3 Seconds

Is this what goes on in the actual operations?

A. Platform moves to first layer
B. Wait before Print = 3 Seconds
C. Projector display image (Cure Time = 8 Seconds)
D. Wait after print = 0.035 Seconds
E. Lift after print = 0.045 millimeter
F. Wait After lift = 3 Seconds

Repeat steps C to F for the remaining 2 layers (Burn in Layers), then continue to G

G. Projector display image (Cure Time = 4 Seconds)
H. Wait After print = 0.025 Seconds
I. Lift After print = 0.035 millimeter
J. Wait After lift = 2 Seconds

Repeat steps G to J until no more layers are left and the proceed to homing position.

Yes, you are exactly correct.

3) What is the purpose of "Platform Wait Position" and "Resin Depth", not sure what setting to place for these, for a Top Down setup with Direct Control.

After turning on the printer or stop, printer will be move to "Platform Wait Position".
To decrease vacuum force printer will be move slower in resin section ("Resin Depth")

4) How should I setup "Motor Speed" settings can I leave these blank?

Keep them as default value, they are important

5) How should I setup "Advance Setting" can I leave these blank?

You can keep them blank.

6) What can I use with "Lift After Print" setting to let the Platform go down a notch in the resin after that layer is exposed and come back up to the next layer? Just like mandreas setup in his video

I think it will be better to ask mandreas, there are couple of different ways to setup nanodlp and I am not familiar with top down printers.

yonray

Member

Registered: 2016-06-11

Posts: 8

Re: Support Generation and Top Down Printer with Direct Control

Thank you for your quick response, you have cleared up alot for me, It is greatly appreciated. I will ask mandreas how he setup his top down printer

mandreas

Member

Registered: 2016-03-13

Posts: 136

Re: Support Generation and Top Down Printer with Direct Control

Thank you for your quick response, you have cleared up alot for me, It is greatly appreciated. I will ask mandreas how he setup his top down printer

This my configuration for 45 micron slice ...

cheers

yonray

Member

Registered: 2016-06-11

Posts: 8

Re: Support Generation and Top Down Printer with Direct Control

mandreas

Thank you mandreas for your response. how did you manage to get your platform to go down a notch in the resin after that layer is exposed and come back up to the next layer? Just like in your video. which settings are responsible for that?

Thank you

mandreas

Member

Registered: 2016-03-13

Posts: 136

Re: Support Generation and Top Down Printer with Direct Control

mandreas

Thank you mandreas for your response. how did you manage to get your platform to go down a notch in the resin after that layer is exposed and come back up to the next layer? Just like in your video. which settings are responsible for that?

Thank you

It is "Lift After Print" box setting

yonray

Member

Registered: 2016-06-11

Posts: 8

Re: Support Generation and Top Down Printer with Direct Control

Thank you mandreas, I greatly appreciate it.
I have a Raspberry Pi 2 so far, I just have to get the other parts so I can begin.