Menu
Cart

Fine Tuning our 3Dresyns in SLA DLP & LCD 3D printers

0.5


Our 3Dresyns have been designed to print in a broad range of SLA DLP & LCD printers. Nevertheless, our 3Dresyns may need adjustment or fine tuning with the following additives to improve their print quality and resolution with specific printer settings:
  • Print Quality Fine Tuner FT1 is an accelerant additive recommended for increasing the cure speed of our resins in printers working with UV/Visible  light wavelegths up to 410 nm (250-410 nm range), including 405 nm blue LEDs, lasers and standard DLP projectors and LCDs. Our 60 mL dispenser of FT1 is normally used at 0.1-1 %  dosage
  • Print Quality Fine Tuner FT2 Visible  is an accelerant additive recommended for increasing the cure speed of our resins in printers working with UV/Visible light wavelegths up to 440 nm (250-440 nm range), including 405 nm blue & violet LEDs, lasers and standard DLP projectors and daylight visible LCDs. Our 60 mL dispenser of FT2 Visible is normally used at 0.1-1 % dosage.

 

To reduce Light Bleeding (LB) and undesired overcure and overgrowth  a clear liquid Light Blocker (LB) additive has been developed to improve XYZ resolution by reducing light penetration, scattering and overgrowth of our clear resins beyond specifications:

    • Print Quality Fine Tuner LB1 is recommended for improving XYZ resolution and reduce overgrowth and "support fusing or merging" of "clear" resins in SLA DLP LCD printers working with lights from 350 to 410 nm,  including 405 nm blue LEDs, lasers and standard DLP projectors and LCDs. Our 50 mL dispenser of Fine Tuner LB1 is normally used at 0.5-3 % dosage with "clear" 3D resins

      Print Quality Basics

      Original and non original commercial 3D resins usually experience print quality variations depending on specific printer settings and print specifications, including basic printing variables, such as different light power and wavelength, curing or exposure time per layer, layer thicknesses, print sizes and shapes.

      For example, even with the same SLA DLP & LCD 3D printer, any 3D resin that gives relatively good quality prints at a specific layer thickness may suffer basic quality printing problems when printing at higher or lower layer thickness.

      The optimum print quality for each 3D resin can be achieved by increasing or decreasing the power and the curing or exposure time. Unfortunately, not all commercial printers allow modifying these variables and even at their optimum printing settings, after fine tuning, most commercial 3D resins are often too brittle or fragile. Our 3D resins have been formulated to overcome these limitations.

      Our hard grades are tough, non brittle. All our flexible grades can be twisted and stretched and do not break when folded.

      Without fine tuning, any 3D resin cannot  reach their optimum performance (print quality/detail) even with the same printer at different designs of different size and shape, specially with complex high detail intricate designs, and different printing settings, exposure time and layer thickness.

      Most commercial SLA DLP & LCD 3D printer manufacturers have significantly limited the opportunity of printer users to adjust the printing settings and resolve basic print problems, allowing most of them just to change the layer thickness, the supports density and their size.

      All 3D resins need adjusting, fine tuning, to different printer settings

      3Dresyns designed Fine Tuners to give the opportunity to printer users to have the basic tools to resolve common print quality problems.

      Without fine tuning tools 3D resin and printer suppliers cannot provide a single 3D resin for different 3D printers, different print designs and different settings, for example different light sources, laser, LED, DLP projectors, LCD screens, different wavelengths and intensities, different curing or exposure times, different pixel/voxel sizes, different layer thickness, different print sizes and shapes, different supports sizes and densities, etc,.. 

      This technical limitation and need for fine tuning can be applied to all 3D resins in the market place, including original 3D resins from 3D printers manufacturers because often print quality issues appear by simply changing basic printing variables, such as layer thickness, print size and shape, supports size and density, etc.

      In fact, to obtain high quality results at different specific printing settings all 3D resins and printing variables need to be adjusted by either fine tuning or adjusting the power and/or the curing or exposure times (when feasible if the printer settings permit) or by fine tuning the clear and colored 3D resins with additives such as our Print Quality Fine Tuners FT1 or FT2 Visible and in clear resin and light colored systems with Light Blockers such as our Fine Tuner LB1.

        Typical printing problems and solutions  
        Printing problems are evidenced by print failure and/or poor print quality, to say:
        • poor print resolution shown as print and supports over growth beyond specifications due to overcure and excessive light penetration (Z axis) and/or scattering (XY axis) 
          • Fine Tuner LB1 at 1-3% dosage will improve resolution significantly in clear systems. Additions are recommended step by step of 1%
          • a decrease of the dosage of Fine Tuner FT1 or FT2 Visible with the original resin will improve resolution in clear and colored resin systems
          • an increase of pigment dosage will improve resolution in colored resin systems
        •  poor print resolution shown as print and supports defects with missing parts due to undercure
          • an increase of the dosage of Fine Tuner FT1 or FT2 Visible will increase cure speed and improve resolution in clear and colored resin systems
        • separation of prints from supports during printing or print breaking can be due to under or over cure of the resin
          • an increase of Fine Tuner FT1 or FT2 visible will resolve it supports are too soft due to undercure
          • an decrease of Fine Tuner FT1 or FT2 visible will resolve it supports are too hard and brittle due to overcure
          • an increase of supports density and size will also help to resolve it
        • damage “veiling” of the PDMS or FEP of the resin tank (vat) even with successful prints due to the use of agressive raw materials
        • others, e.g. unbalanced resins

        Fine Tuning "clear" resin systems

        To obtain better quality prints for different layer thickness, we recommend the increase and/or decrease of the light power or curing or exposure times and/or the dosage of Print Quality Fine Tuner FT1 (or FT2 Visible) and LB1 step by step until optimum results are obtained.

        Fine Tuning Process for "clear" resin systems

        Step 1: Select your layer thickness, tipically between 10-100 microns, for your clear resin system

        Step 2: Select your print settings, curing or exposure time if possible, supports density and point size.

        Step 3: Print

        Step 4: Evaluate the quality of your print.

        Option 1: If you are fully satisfied with the quality of your print it is not necessary to fine tune our 3Dresyns, however this does not normally occur the first time  due to the high technical demands of 3D printing.

        Option 2: If you are not fully satisfied with the quality of your print it is necessary to fine tune our 3Dresyn and/or your printing settings. Depending on the origin of the print quality problem, different solutions are available.

        If the problem is over cure, reflected by light bleeding or overgrowth in the XY or Z axis beyond specifications due to overcure and excessive light penetration (Z axis) and/or scattering (XY axis) 

        • Fine Tuner LB1 at 1-3% dosage will improve resolution significantly. Additions are recommended step by step of 1%

        If the problem is under cure, reflected by missing print parts we recommend that 0.1-0.3 % of our Print Quality Fine Tuner FT1 or FT2 Visible  (gently warming  in a microwave oven will help to decrease the viscosity of our Fine Tuners) can be added to our 3Dresyns. The mixture should be shaken gently before printing. If the print does not print well after the first addition of Fine Tuner a further dosage  can be added in smaller or bigger steps depending on the printer power: 

        • small 0.1% steps with medium or high light power printers above 150 mW or 10 mW/cm2: range 0.1%, 0.2%, 0.3%, or
        • bigger 0.3% steps with low light power printers below 150 mW or 10 mW/cm2): range 0.3%, 0.6%, 0.9%.

        Fine Tuning "colored" resin systems

        To obtain better quality prints for different layer thickness, we recommend the increase and/or decrease of the light power or curing or exposure times and/or the dosage of Print Quality Fine Tuner FT1 (or FT2 Visible) step by step until optimum results are obtained. Opaque colored resin systems do not usually requiere the use of Fine Tuner LB1 since pigments act as an efficient light blockers, improving significantly the XYZ resolution. Light colored resin systems will need some light blocker to avoid overgrowth or support merging.

        Fine Tuning Process for "colored" resin systems

        Add the chosen color (pigment paste) to the coloring base (record the dosage for future prints). Small additions are sufficient to color the prints, consequently avoid over adding it to prevent excessive light blocking by the pigment, resulting in potential curing limitations, specially with low light power printers.

        Step 1: Select your layer thickness, tipically between 10-100 microns, for your colored resin system

        Step 2: Select your print settings, curing or exposure time if possible, supports density and point size.

        Step 3: Print

        Step 4: Evaluate the quality of your print.

        Option 1: If you are fully satisfied with the quality of your print it is not necessary to fine tune our 3Dresyns, however this does not normally occur the first time  due to the high technical demands of 3D printing.

        Option 2: If you are not fully satisfied with the quality of your print it is necessary to fine tune our 3Dresyn and/or your printing settings.

        If the problem is under cure, reflected by missing print parts or print breaking from the supports we recommend that 0.1-0.3 % of our Print Quality Fine Tuner FT1 or FT2 Visible  (gently warming  in a microwave oven will help to decrease the viscosity of our Fine Tuners) can be added to our 3Dresyns. The mixture should be shaken gently before printing. If the print does not print well after the first addition of Fine Tuner a further dosage  can be added in smaller or bigger steps depending on the tuning progression. 

        If the problem is over cure reflected by light bleeding or overgrowth in the XY or Z axis beyond specifications due to overcure and excessive light penetration (Z axis) and/or scattering (XY axis), which may happen in light colored systems:

        • Fine Tuner LB1 at 1-3% dosage will improve resolution significantly. Additions are recommended step by step of 1%

        Following this methodology you can easily evaluate the optimum dosage of Fine Tuner FT1 (or FT2 Visible) and LB1 for your specific printing settings.

        The optimum addition of Print Quality Fine Tuners FT1, FT2 Visible and LB1 will be found when the print quality is at its highest, further additions of Fine Tuners will be excessive and quality/resolution will start to decrease.

        Once the optimum is known (remember to record it) it can be used for the next prints.

        Please take into account that our different 3Dresyns, from ultra hard and tough to elastic, may require different levels of post added Fine Tuners.

        We hope you get the best results from our 3Dresyns!

        Enjoy 3D printing with 3Dresyns!

        Note 1: Light bleeding/over growth happens with any commercial 3D resins as well as with our 3Dresyns when the dosage of Light Blocker is insufficient for certain light power and exposure times. If this case, the concentration of Fine Tuner LB1 can be increased by steps of 1%. An overdose of light blocker may decrease the kinetics slowing down the cure significantly. When this happens a small increase of Fine Tuner FT1 or FT2 Visible (c. 0.1-0.2%) can increase the cure speed to balance it . Alternatively the light power or exposure time can be decreased if your 3D printer permits it.

        Note 2: Separation of the print from the supports during printing is usually due to under or over cure of the resin during printing (too soft or too brittle). This can be prevented by increasing the dosage of Fine Tuner FT1 or FT2 Visible or by diluting its content, if an excess has been added.