Photocentric Studio Support

Setting Up Software

Download the latest version of Photocentric Studio below

Minimum Computer Requirements

– Operating System Windows 7, 8 or 10
-Minimum 2.0 Ghz processor speed 2 cores. Recommended 4 cores
– GPU capable of opening opengl version 3.0 or higher. E.g Nvidia GEForce 1050 or higher
– .net framework version 4.0
– 64bit system: minimum 2GB of RAM, recommended 4GB
– 32bit system: minimum 1GB of RAM, recommended 2GB

You can run the software using macOS by using a Virtual Workstation with Windows installed on it.

Installing the software

1. Extract the Photocentric Studio zip folder and run the .msi application

Note: If Windows Defender prevents the installation from starting simply click ‘More Info’ then ‘Run Anyway’ to begin the installation process.

2.The set up wizard will then load on your screen. To proceed with the installation simply click Next.

3. Now select the location for your installation to be saved to. If you wish to change the location simply click Browse and select a new location of your choice. Once the location has been selected click Next.

4. Once you have selected the location of the installation click Next to begin the installation of the software.

5. Installation has now completed, click Close and you can now open the software. When opening the software you will see a section to enter your license number which can be found on the USB in the envelope of the ancillary box, click on this section and enter your license number provided into the field as shown.

Note: The software comes with a 30 day trial. If you wish to use the trial before activating your license simply click ‘Continue Evaluation’.

Optimising Graphics Card Settings

Graphics cards are purpose built to handle 3D Graphics and applications, these are things that your CPU can have a hard time with as it was designed to run your operating system first and other functions secondarily. Most Windows computers are going to run Photocentric Studio off of your CPU by default, so its really important that you make some minor changes in your NVIDIA Control Panel to offload Photocentric Studio’s 3D graphics processing to your NVIDIA GPU so that there are no worries about slowdowns and crashes.

Follow the steps below to change your graphics card settings:

1) Right click on your desktop and select ‘NVIDIA Control Panel’.

2) In the NVIDIA Control Panel select Manage 3D Settings at the top left. Select ‘Program Settings’ and add ‘Photocentric Studio’. Click Add next to ‘1. Select a program to customize’.

If Photocentric Studio is not listed, in the ‘Select a Program’ pop up window select ‘Browse’.  When the next window pops up, on the left select the tab that says ‘This PC’. From here select your ‘Windows (C:)’ Drive.

From your C Drive, select Program Files (x86) then scroll to and select Photocentric Studio folder and finally select the ‘program .exe’ file.

3) Once you’ve selected Photocentric Studio, in the drop down menu select your graphics card processor in this case, NVIDIA

File Opening and Batch Processing

Difference between New/Import/Open

  •  ‘New’ will open a blank file. It will first check if you would like to save previous work.
  •  ‘Open’ will open any selected file into a new workspace. It will first check if you would like to save your previous work. This is like ‘New file’. 
  •  ‘Import’ will import any file into the existing workspace.

Supported File Formats (opening/importing)

stl – (Stereolithography file) The standard file for 3d printing. Binary stl files open significantly faster due to faster reading.

stl compact (stlc)- a custom binary format that is the most efficient way of storing geometry in terms of storage space. Can be used when transferring files very large files to another pc.

ply (Polygon file format) – Used in some 3d scanners & in the dental industry.

amf (Additive manufacturing file format) – A zipped xml format.

slc (Slice file) – A binary file consisting of 2D Curves at different Z levels. Can be converted to PNG slices after import or alternatively it can be converted to a mesh.

obj (Wave front .obj file) – Used in the animation industry. When importing them, the program only reads the triangles. Other polygons are converted back to 1 or multiple triangles. Textures are ignored.

p3d (The program’s own project files) – project files are files which contain objects and supports created by the software. You can use this to open previous print jobs to edit/process them again.

svg (Standard vector graphics). Svg is an ascii file format to store coordinates. It might be handy to view what you are exporting. Some machines require Svg files. This can be either all layers in 1 file or one file per layer. You can import 1 file at a time.

Import file special

Some files may need to be imported in a particular way. In order to keep normal imports simple, we’ve separated these out in a special import menu. Currently, the following special imports are available:

 

  • Materialise magics thin supports: this import option allows you to import Materialise Magics generated support structures that have 0 thickness. The program will ask you to give a value and will then generate a thickness for the support parts.

Batch processing

 The batch processor gives you the ability to prepare multiple files for printing at the same time. It gives you the following options:

  • Copy amount: if different to 1, the part will be copied.
  • Auto orientation: choose a way of auto orienting your parts.
  • Support profile: pick any of your defined automatic support profiles. You can also leave them unsupported.
  • Auto layout: nest your parts on the build plate with the selected algorithm.
  • Rectangular nesting is fast for simple geometrical shapes. Irregular nesting is advanced and use build plate available space more optimally. However, it takes longer for processing comparing to Rectangular nesting.

Handling large stl files

The program is tested for .stl files up to 500mb. Larger files may result in unstable behaviour. We’ve put together some tips to avoid large .stl files.

  1. Only export. stl’s from your CAD package in a resolution that your Photocentric 3d printer supports, 400 MB. Any more detail might add unnecessary size to your file.
  2. Don’t try to import all your models as 1 .stl file. Import as single files and then nest your build job in this program.
  3. Use tools like ‘Reduce Mesh’ in Rhino3D or similar CAD programs to reduce the size of your mesh. Usually, they come with ‘accuracy’ settings that can prevent changes in geometry.
  4. Make sure you are using binary. stl’s. These take up a lot less memory.

Project File and Files Saving

Options for savings

  • ‘Export selected’ will only export selected objects
  •  ‘Save’ will save to the currently open file location (visible in title bar)
  • ‘Save as’ allows you to choose save location
  • ‘Export to program as. stl’ will show you a list of available programs that can open .stl files. You can export your work directly.

Saving/export as stl and as a project file

stl – (Stereolithography file) The standard file for 3d printing. The program can export to binary or ascii stl format. Supports can be exported as a separate file or joined to the part.

stl compact – a custom binary format that is the most efficient way of storing geometry in terms of storage space. Can be used when transferring very large files to another pc.

p3d project file – (The program’s own project files) Project files contain the entire structure of created objects. Use this if you want to continue working on a print job later i.e. edit supports reorient models, add more models.

Orientating & Sizing Models

This software provides multiple options to orient your objects. They are available under icons in the tool bar and toolbelt, and are described in detail below.

Manual movement and rotation using gumball tool

Move to 0, 5 or 10 mm

  These buttons allow you to quickly move your object to a fixed height from the build platform. You can use absolute translation if you need another specific amount.

Centring

This centres the selection on your build table and on z=0

Translations

You can add relative translations or translate your selection to an absolute position.

Rotations

You can add rotations to the selected objects in 3 different axes.

Scaling

 There are 3 options for scaling.

 

  • Scale factor: this allows you to scale all directions or in a single direction by a factor.
  • To fixed size: this allows scaling to a fixed size. Uncheck the box at the bottom to leave the other dimensions unchanged. Otherwise, they will scale with the same factor.
  • To build platform: use this option to scale to a maximum number of objects. The algorithm checks the bounding box of your object minus a padding and scales the number of desired copies.

Your supports and any objects attached to the part will also be scaled.

Scale settings preview will appear in the right side window with visible options (percentage, actual size etc.).

Tip: When you apply a scale factor, it will be applied to the part automatically once a value is defined.

Copying

 You can copy objects easily by stating the number of desired total copies. Automatic placement will copy the amount in a square raster. Select manual array placement if you would like a different orientation. The copies that will be created will appear in red boxes on the build plate. 

Orient to face

The orient to face button allows you to orient your object to a specific mesh face. Select the face to orient your object. Once you activate this feature, a rotation arrow will appear on the object surface to indicate the face that will be oriented.

Mirroring

 Mirroring allows you to create a mirror of the part in a chosen axis. This can be handy if you are printing mechanical parts that need a mirrored duplicate. You only need to support your part once in this case which saves time.

Nesting

 There are 2 nesting algorithms included in the program. The first is a fast, regular rectangular algorithm. It uses the bounding box of each object to place objects. The second is a more advanced irregular shape algorithm. This algorithm determines how irregular shaped parts are best positioned together to minimize the total area. You can state how many rotations per part should be tried. More rotations mean a corresponding increase in computation time. After nesting you might want to optimize the positioning of your parts. You can do this using the top view with the arrow keys (see keyboard shortcuts) or of course, with the object manipulator.

Multi Floor

If you have a large vertical print area on your print table and your parts are small, you can add one or more floors. Floors help you to increase the output of your printer. Use the  tool to add a floor. A popup box will appear with various options. The floor is generated according to a recursive algorithm that generates a structure without large overhangs. It has a ‘weakness’ over its diagonals that allow the structure to be easily broken off when needed.

Each part in your build volume is fixed to one floor only. This will determine to which Z coordinate the supports are created but also on which level the part is nested. You can switch the floor for a part by using the ‘switch to floor’ tool: 

Tip: All these options are also available by right clicking on the selected object in ui.

Hollowing, Infilling, Drainage Holes, splitting joining meshes/parts

These features are also available under icons in the tool bar and toolbelt.

Hollowing

  The hollowing function hollows out your model by inserting an offset on the inside. This allows you to print only shells and save material. Determine the wall thickness with the thickness parameter. The thinner the wall, the faster the calculation. The accuracy parameter again controls the sampling grid. If your accuracy is low the calculation is faster. Note that if your accuracy is too low, you may lose detail.

Optionally, you can reduce the generated mesh to save memory and computation time further on. Note that a too high level or reduction might lead to new intersections of surfaces with the original mesh. (i.e. cutting corners).

To see the result of your hollow operation, leave the checkbox ‘switch to transparent view mode’ checked.

Reduce mesh

 Reducing your mesh, speeds up further computation. For large meshes (50mb+) it might be very useful to reduce your mesh. You can choose to use triangles or vertices. Dialog indicates how many triangle/vertices will be removed. The algorithm does this by minimizing the difference (error) between the new and old mesh.

Add drainage hole

After hollowing your object, you might want to add holes to let resin escape during printing. This is done with the add hole tool.

We recommend you using ‘Flexible drain hole’.

Once you select the tool you enter ‘add hole mode’. Click the location where you want to place a hole. A dialog appears asking you for inner and outer diameters. Once you generate the hole a ‘cylinder’ will appear; during slicing this is where holes are added in your slices.

You can still drag and scale your hole after generating it. Just select it and use the object manipulator. All holes are added in the part tree as well under ‘Drainage holes’.

Drain plugs

You can add in additional print drain plugs to fill gaps after object would be printed.

Add (lattice) infill

 With the infill function you can add a lattice to the print. You can select the diameter of the lattice and the cell size.

If you leave the checkbox ‘join infill in 1 mesh’ checked (recommended) then the infill is joined into 1 mesh. If you uncheck it, each part of the lattice will be added as an individual beam. This means you can edit the parts individually. When in transparent view mode you can select (and delete) the lattice inside the object.

Split disjoint mesh

 The split disjoint mesh command splits a part into its disjoint parts. It analyses the triangles in your part and detects which parts of the object are separate shells. Use this if you want to import meshes that are multiple parts combined or if you want to fine tune a combined part. Please note that you can’t use this on parts which have supports or other attached objects

Joint disjoint mesh

 The join disjoint mesh command joins multiple parts in 1 single part. You can use this for example after first splitting your part, editing, then joining it together again. Please note that this can’t be run on parts with supports or other attached objects.

Shrink wrap

 The shrink wrap function will attempt to wrap your mesh inside a new mesh closely approximating the surface of the existing mesh. With the accuracy parameter you control the size of the sampling grid that is used to generate the replacement surface. The program indicates what your approximate mesh triangle size will be with the used accuracy setting. If your accuracy is low the calculation goes faster. Please note that if your accuracy is too low you might lose detail.

Supports

All support profiles and adjustments are created as default by Photocentric and we do not recommend new users change them. Users will be informed of updates by Photocentric via a notification on software start-up.

Support icons are available in the toolbar under the icons shown below. You can place supports on parts individually and also on multiple parts at the same time.

Adding Supports

Adding supports manually

When you click a support icon, it will depend on the support what you need to do next to place the support. Most of the time, a tip on what do next, will appear in the status bar at the bottom of the screen.

Adding supports automatically

Once you choose the automatic support icon, the window with auto supports advanced/basic option will appear on the right side of the screen. The software contains advanced algorithms to make support generation as easy as possible. Support generation is in the tab ‘support generation (basic/advanced)’ on the right of the screen. The controls become active once in support mode, however, we do not recommend that new users change these settings. Make sure you choose your desired ‘Support Profile’ for both Automatic support or manual support generation.

Detailed description of supports and types

Manual supports

Single support

 The single support is the simplest support. It has a foot, main column and a cylinder connecting to the object. Select the object to place supports. When pressing enter you generate all meshes. When you select a single support, you can edit its properties. 

Lattice support

  The lattice support is useful to create a strong but thin support structure for large objects. Select multiple points and press enter to create the geometry. The lattice support has some special options that need a bit more explanation.

  • All sizes of the lattice can be edited.
  • The grid size regulates the distance between joints.
  • The diagonals checkbox determines if shores are added in XY, X and Y direction or only in X and Y.
  • The alternating checkbox determines if shores in X and Y direction are alternating. This conserves material.
  • Intersection checking and removal can be activated if you would like an intersection check to run after generation of the geometry.

Internal support

 The internal support can be used to support internal cavities. Select multiple points and press enter to generate the geometry.

Tree support

 The tree support acts like the single support. However, it has multiple branches that can support multiple parts of the model. It saves material and makes post processing faster by reducing the amount of feet. 

Internal tree support

 The internal tree support is very useful for rings that are oriented vertically. With this support you can create star shaped supports inside a ring.

Volume support

 This support generates a solid volume below a critical area. Select a critical area by selecting a triangle. Hold shift to select multiple triangles, suppressing the message to select an entire critical area. Once selected, you can select the triangles again individually to delete them. This way you can very accurately decide which parts of your model to support. You can also drag select with your mouse to select an area of triangles at once. Hold the shift key and drag to select them again for deletion. Press enter to generate the geometry.

Base plate support

 The base plate support generates a base plate at the bottom of your object. There are different shapes available. You can change the shape after placing the support by selecting the base plate.

  • Square
  • Inner circle
  • Outer circle
  • Object contour shape
  • Entire build table

Additionally, there is the option to create holes with a specified diameter into your base plate. The holes will be added on a grid if they are within the base plate surface.

Base connector

  The base connector can be added to multiple parts on your build table. Select multiple parts and click the connector button to add this item. It will help you to easily peel all your parts from the build table.

Support connection

 This feature allows to select points on the support body to connect them to each other. It allows the user to create their own lattice structure between existing supports.

Automatic Supports

 The automatic support generation has multiple options for support generation, the default being ‘splits style lattice’. This support type is very efficient for Photocentric 3D printers. The branches are split from the top down creating a unique scaffolding structure. The generation parameters are edited in the support generation tabs.

Below is a detailed description of the automatic supports feature. We do not recommend that you change support profiles provided by Photocentric.

Generate supports button

This button runs the supporting algorithm on your mesh. Depending on the size of the mesh this takes from 1 second to several seconds. You can decrease the time by first reducing your mesh.

This will generate supports for all selected models/objects on the build plate. If you want to generate supports for one object only, remember to select it by left mouse clicking on the chosen object.

Editing points

Once you have generated support points you can click ‘edit’ (next button to generate) to edit the generated points. Clicking on an existing point will remove it. Clicking again on the model will add a point at that precise location. Click ‘apply’ to generate the supports or press Esc to cancel.

Support profiles

Just below the support generation buttons there is a dropdown menu with support profiles. These profiles are used during auto supporting. Support profile are pre-set. You have the option to edit/save/delete new profiles by clicking the edit button. If you change a value and would like to save it, press the ‘save’ button.

Density (%)

The density percentage is a multiplier for how many support points will be generated. Together with the tip diameter, it results in a density (mm) that is absolute to your model. Critical creases/surfaces will be sampled with this density.

Tip diameter (mm)

The diameter in mm of the tip connecting to your object. This influences the absolute density at which points are generated. Depending on your printer, you can go as low as 0.1mm. Supports with smaller tips are easier to remove.

Critical build angle (degrees)

The critical build angle determines which surfaces/creases are critical. Critical parts receive support points. This setting typically depends on your printer, but a good start would be 30 degrees. If you choose a value too low, your prints might fail.

Sampling strategy

The way the software adds support points can also be chosen. For certain models it might not be useful to support the surface but only to look at creases or vice versa.

 

  • Creases & surfaces (place points at critical creases and critical surfaces)
  • Creases only (best for geometrical shapes only like cubes, certain but not all machine parts etc.)
  • Surface only (best for natural objects or highly detailed meshes) 

Surface Sampling

This determines the method that is used for generating support points on a surface. A random placement is very fast. Placing supports on a grid means a slower calculation run so this might take more time. For some printers a regular interval between supports can produce better prints.

Strategy

The strategy shows which options you have for automatically adding supports. It can be one of the following:

  • Split style lattice supports (recommended)
  • Single supports
  • Lattice supports

Density main columns (mm)

The density of the main columns is a variable that is used in splitting/combining algorithms. It determines what the maximum distance between 2 resulting columns can be, i.e. how far the combining/splitting algorithm will continue. Setting this value too large might result in too few support columns leading to instability. A low value will lead to more columns and more material usage.

Pole diameter (mm)

In the splitting/combining algorithms the pole diameter is the starting diameter for a column.

Pole widening factor

This factor multiplies the diameter of columns at the bottom of the build table, so increasing your column strength. Please note the full multiplication is only reached at the highest column; the others are scaled down proportionally to their length. This keeps all columns proportionally the same.

Place above base (mm)

If this option is checked the support generation places your object at an exact height above the base.

Internal supports enabled

This option allows you to turn off any internal supports. This might be handy when you already have an infill generated for hollow parts.

Height of the foot

This option adapts the height of the support feet.

Absolute foot sizes

This option allows you to use an absolute size for the feet of the automatically generated supports. This gives you a little more flexibility when removing your models from the build platform.

Base Plate

Check this option if you would like to add a base plate support immediately after generation. This can also be added later.

Supports preview, editing, deleting

Editing in points mode

 You can also change the viewing mode to ‘point’ mode. This will show only the support contact points on the part. You can drag these freely and they will snap back to the object to stay attached.

Editing in intersection mode

 When you switch to intersection mode, only the supports that are still intersecting with the part are drawn as a mesh. This allows you to easily see where there are still intersections.

Deleting parts of the support

You can delete individual parts of a support by selecting it and then pressing delete. You can also hold ctrl to select more or hold shift to deselect one by one. You can also drag your mouse and hold shift down, to select multiple parts of the support at once.

Delete entire support

To delete an entire support, press ctrl + delete when only a part of the support structure is selected. Alternatively, you can select the entire support by clicking on it in the part tree; it will show as highlighted before you press delete.

Remove all supports from a part

 The toolbar also contains an icon to remove all supports from the current part at once. Use this if you want to start again. You can also select multiple supported parts and then delete all of their supports at once. 

Editing Support dimension tip, point, foot.

Tip: To edit support dimensions, choose preferred support or group of supports by clicking the left mouse button on supports for single supports; hold ctrl + left mouse button for multiple supports, or hold shift and the left mouse button to select a group of supports; then right click on the marked support to open the menu for editing support sizes. Please remember you can only edit one type of support at the same time.

Slicing and Machine Configuration

Slicing

 Slicing is started by pressing the icon in the toolbar. You are first asked to select a folder to hold the slicing folder. To make sure you are slicing to the desired machine format, you will receive a pop-up to double check these settings. Additionally, an overview is given of all models/volumes in the building area. At the bottom you can name your slice folder and optionally, zip it when done. 

Tip: Sending file to machine remotely:

Use HTTP Upload to machine, to upload a file to your printer over HTTP POST (add ip address of machine – see below)

The HTTP Protocol can be set up in the machine workflow properties tab.

Configuration

Edit Configuration

By opening the configuration via file->configuration or clicking the icon you can change the program’s settings, machines, print profiles and support profiles. Each section is described here.

Resetting the configuration

You can reset the configuration file at any time by clicking ‘reset configuration’ in the file menu. This will reset the entire configuration to default. It will ask you if you would like to keep your existing machine configurations. If you answer yes, machines won’t be deleted.

Import/export the configuration

Over the file menu you can export/import your configuration quickly. This will allow you to give your computers all the same configuration file or share your settings with others.

Inspect configuration manually (advanced)

In the rare case that you would like to inspect the configuration file manually, you can. It is stored as .xml under a folder that looks like the one below:

C:Users{YOUR_USER}AppDataRoaming3D_PROGRAM3D_{741D228E-AC07-40C2-A9DC-560B18A54F03}.

Warning: changing values in the configuration manually might lead to unexpected crashes or behaviour. Always make a backup of your configuration xml file first!

Machines, editing, adding, updating

Add a new machine

 The plus icon will allow you to add a new machine. The machines are loaded from our online server and are thus up to date. You can filter by name or type (dlp/sla/inkjet). Depending on the machine loaded, various settings will be turned on or off. If you would like to start with a machine with all options turned on, choose the ‘default’ machines. i.e. “Default DLP Printer” 

Copy/import/export/delete

 The following 4 buttons allow you to copy/import/export/delete machines. Import and export is done over an XML format. 

Default machines

 You can make a machine default by pressing the star button. Making a machine default will give it a small star in the machine image. This will allow you to pick the machine as default when starting up the software. 

Editing a machine

You can edit a machine in 1 of 3 ways. Select the machine in the tree on the left, double click the machine image in the machines overview or click the ‘edit’ pencil on the top right in the machines pane.

Updating machines

If you have ‘check for updates’ enabled, the software will automatically check if there are updates for machines. If you haven’t, you can manually check for updates with the ‘Check for updates’ button. The software will try to connect to our machine portal and compare your machines to the latest versions. When there are updates found, it will highlight your machines with an ‘update’ label.

You can choose to update your machine by selecting them and then pressing the  button. This will overwrite current settings. If you wish, make sure you save your customised settings prior to proceeding with any update. Alternatively, if you would like to keep your customised machine’s settings you can add another Machine profile form the server and update the newly added one.

Tip: All machine settings and resin support profiles are set up and will be updated by Photocentric. We would not recommend changing these, you risk print or machine failure.

License and License Activation

The program comes with a 30-day free full featured trial license. Each license can be activated on 1 or 2 PCs.

Activation

License activation requires an internet connection to validate your license. Please enter the license without any text/title/enters/newline/spaces. If you are not sure if your email program modified the license string you can always open the license in notepad to make sure there are no enters/spaces.

Installing a newer version

Installing a newer version of the program can be done without removing the license. Just uninstall the current version and install the new version. The license will stay in place.

Moving to another computer

You can move your license to another computer. Go to ‘Help -> remove license’ to remove the license and deactivate your computer. This requires internet connection. The program will close afterwards. Now you can activate your license on another computer.

Software Shortcuts

Object Manipulation

Shift+mouse translation

Shift+mouse rotation      

Arrow keys                

Shift+arrow keys          

Ctrl+C                   

Ctrl+V                   

Delete                   

Enter                  

ESC                      

Ctrl+Z               

Ctrl+Y                   

Gridsnap on when moving an object

Rotation snap on (default 45 degrees)

Move object in X (left/right) and Y (top/down)

Rotate object in XY plane

Copy

Paste

Delete part (or entire selected support)

Confirm current open command (i.e. place support)

Cancel current open command

Undo

Redo

File management

Ctrl+N

Ctrl+O

Ctrl+S       

New file

Open file

Save file

Views

Ctrl+T

Ctrl+B

Ctrl+P

Ctrl+L

Ctrl+F

F5

F6

F7

F8

PgUP

PgDN

Top view

Bottom view

Perspective view

Left view

Front view

Shaded view

Wireframe view

Filled frame view

Transparent view

1st slice view

Turn off slice view

Object selection

Click

Click+Shift

Click+Ctrl

Drag mouse

Drag mouse + shift

Ctrl+A

Ctrl+D

Select object

Add object to selection (+1)

Remove object from selection (-1)

Select 1 or multiple parts

Select 1 or multiple supports (but no part itself)

Select all parts

Deselect all parts

Triangle selection mode

Click

Click + shift

Drag mouse

Drag mouse + shift

Click existing

Delete

Add a single triangle

Add multiple triangles (without being asked to select the entire critical)

Add multiple triangles

Select multiple added triangles (turn yellow)

Select single triangles

Deletes selected triangles

Support mode

Delete

Ctrl+Delete

Ctrl+Q

Ctrl+W

Ctrl+E

Delete selected parts only.

Delete entire selected support (also if just selecting 1 sub part)

Toggle to single support mode

Toggle line view mode

Toggle point view mode

Technical Enquiry

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