FAQs

Sales FAQs

  • In which countries do you ship?
  • How much does the shipment cost?
  • How long does my shipment take to reach me ?
  • Which resins are compatible with my 3D printer ? 

Printing FAQs

  • When preparing the 3d model, should we print the sprues as well? or should we use wax sprues?
  • How can I avoid weight differences in my prints ?
  • My print is not sticking to the build plate(nothing prints or partially printed) what should I do?
  • What should I do to increase the adhesion during print?
  • Do I need to roughen the surface of the build plate? Why?
  • Why should I use base? Or why not?
  • What is led intensity?
  • If my prints come out more lighter/heavier where should I look for to solve it?
  • My print has some layers that are separated. What may be the reason?
  • Fixing a model is important. How to fix it?
  • My prints are brittle. What to do?
  • My prints are wavy. What to do?
  • I have some broken supports in my prints. What to do?
  • I have some unexpected holes/bubbles in print or some fine details are filled in. Why?
  • How to avoid layer marks?
  • Navy supports or very tiny supports? What is the average support size?
  • When should I filter my resin?
  • Which resin is the best for LCD printers? Why?
  • Why resins have different varieties for DLP and SLA printers?
  • What happens to resins during curing?

Jewelry FAQs

  • How to polish the layer marks and get a smooth surface ?
  • Can we compensate shrinkage in the CAD?
  • What is the density of resins?
  • Can I get silicone mold/rubber mold from a castable resin ?
  • How can I avoid shrinkage?
  • In Which conditions should I stock my resin ?
  • Can I leave resin in my tray overnight?
  • Why do I need to shake my resin before printing?
  • Why do I need to use ethanol rather than IPA for washing?
  • Which resin can I use for rubber mold?
  • What is the difference between Burn, Opaque, Wax and Dark castable resins?

Dental FAQs

  • Which parameters are recommended for crown & bridge design in Exocad ?
  • Which parameters are recommended for partial design in Exocad ?
  • Which parameters are recommended for crown & bridge design in Sirona Inlab ?
  • Which parameters are recommended for crown & bridge design in Dentalwings ?
  • Which parameters are recommended for crown & bridge design in 3 Shape?
  • How can I check my 3d designs for before printing? ( 3dbuilder, meshmixer and netfabb etc..) 
  • How can I add support to my 3d designs to prepare to print ?
  • Do you have any recommendations for casting parameters and water - liquid ratio to invesments?

Casting FAQs

  • Boric acid affects in good casting?
  • Which investment is best for casting?

Returns

Q: In which countries do you ship?

A: We ship Power Resins worldwide via DHL. All costs related to custom ( custom fee and taxes) that may occur are the responsibility of the receiving country.

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Q: How much does the shipment cost?

A: Shipment fees vary by region and Kg. You may check the shipment fees for your address by providing your country with a draft order.

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Q: How long does my shipment take to reach me ?

A: As we ship with DHL it is very fast. According to your region it can take up to 2-5 business days.

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Q: Which resins are compatible with my 3D printer ?

A:  If you are interested in dental application please check which resins are compatible for your printer here (Compatible Dental Printers) and if your interest is with the jewelry sector please check here (Compatible Jewelry Printers)
Also do not hesitate to contact us via export@3bfab.com for any technical questions. Please also join our Facebook user group here to learn more from other users' experiences.

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Q: When preparing the 3d model, should we print the sprues as well? or should we use wax sprues?

A: It’s better to put sprues before printing. You will save time and avoid extra jobs. But depending on the models, you might prefer to put sprues after the print. It’s totally optional but our suggestion is putting the sprues while putting support.

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Q: How can I avoid weight differences in my prints ?

A: Weight differences that may occur depends on the light uniformity and the 3d printer you are using. A uniform light source and a correct mask file will help you.

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Q: My print is not sticking to the build plate(nothing prints or partially printed) what should I do?

A: First of all, you should check your support and also be sure you fixed the model. So there is no broken part in the model. After you are sure about the model, check layers after machine slicing finished. If everything is good, then you might have to calibrate again or check your profile, if it’s fitting with the resin you are using.

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Q: What should I do to increase my adhesion during print?

A: There are multiple ways to increase adhesion during printing. You may apply a thin layer of primer on the plate to increase adhesion. Primer is a resin- specific material and similar type materials have a better adherence to each other, it is better to keep the primer under UV light before applying it to the build plate. But PowerResins resins do not need that process; they already adhere well.
Another way would be to change the profile settings, increasing the number of base layers and simultaneously increasing the base curing time which increases adhesion.

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Q: Do I need to roughen the surface of the build plate? Why?

A: Normally it is required when your print is not sticking properly on the build plate or falling. Aside from roughening the surface, you can apply resin on the build plate surface and leave for 3 mins before printing.

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Q: Why should I use base? Or why not?

A: Adding base to the print helps it stick strongly on the base platform especially if you are using a low cost 3D printer. In case of Mega or Sega 3D Printer, it is not required primarily because of its fast peeling technology.

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Q: What is led intensity?

A: LED intensity is the amount of light or brightness the LED emits, which is measured using a light meter. On 3D printing, LED is used for resin curing to produce 3D printed models.

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Q: If my prints come out more lighter/heavier, how can I solve it?

A: If your models are coming lighter or heavier, we then suggest you check your profile in the machine. You might use the wrong profile for that particular resin. Or machine light power might may be wrong for that resin. You might have to change the parameter for the light power (Exposure) of the machine.

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Q: My print has some layers that are separated. What may be the reason?

A: 
Easy separation between layers is very important for good printing. This situation is more common when printing thick models. Due to the easy separation, the surface quality of the print increases, the vacuum effect decreases, also the problem of not being able to hold on to the plate in prints is reduced and the life of your tank is extended.
The most important way to ensure easy separation is to position the model correctly, the model we would want to print should not be positioned parallel to the ground but we should ensure that the model is knitted at right angles.

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Q: Fixing a model is important. How to fix it?

A: 
It is important to fix a model before printing primarily because most models with complicated structures have a tendency to have holes, unattached parts and broken polygons. With MAGICS Software you can fix all of these and check for model problems.

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Q: My prints are brittle. What to do?

A: 
The main reason any print is fragile is that it is over cured. Resin that is subject to over curing during or after printing becomes more brittle. Changing the profile settings will help if you have more brittle resin than it should be right after printing. All parameters during formation of the layers affect the stiffness of the model.
Also , after the print is washed and dried with alcohol, if it is post cured or left under light, it continues to harden and increase its fragility

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Q: My prints are wavy. What to do?

A: 
The main reason any print is fragile is that it is over cured. Resin that is subject to over curing during or after printing becomes more brittle. Changing the profile settings will help if you have more brittle resin than it should be right after printing. All parameters during formation of the layers affect the stiffness of the model.
Also , after the print is washed and dried with alcohol, if it is post cured or left under light, it continues to harden and increase its fragility

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Q: I have some broken supports in my prints. What to do?

A: 
If your supports came broken, then firstly you should check the support. If there is any problem with support, fix the support you put in the model. Other than that, there might be several reasons for this problem. You can check calibration, light power and profile of the machine. You might have to check your tray condition or filter the resin.

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Q: I have some unexpected holes/bubbles in print or some fine details are filled in. Why?

A: You should first choose the right resin, some resins are specific to some applications. PowerResins technical team will assist you in that matter
What you should do if you cannot get the details you expected in a print:
First make sure that your tank is usable and that your resin is drained and there is no dust in any area between the light source and your resin tank and also that it is clean.

You also need to be sure that your model is fixed and check your layers

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Q: How to avoid layer marks?

A: 
Layer marks occur as a result of layered manufacturing, reducing layer thickness is the most effective. As the layer thickness decreases, the layer traces decrease in direct proportion.
However, with the same layer thickness, the clarity of the marks may vary between models. By positioning your model correctly, you can avoid layer traces.
In addition , layer marks can be reduced by changing the parameters of your printer profiles. You can avoid this situation by soft separation forces, slow Z shaft movement and accordingly longer curing.

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Q: Navy supports or very tiny supports? What is the average support size?

A: 
Combined Novafab 3D printers and PowerResins resins offer real freedom in printing, it provides thin wall thickness up to 0.12mm and support diameter.
Support diameter may vary depending on the size of your design.

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Q: When should I filter my resin?

A: You should filter your resin after especially broken prints. If some of your models are broken or not attached to the platform (fallen parts), then there might be some unwanted parts inside of the resin tray. You should filter the resin. And if you are not using the resin overnight, then it’s safer to filter and put it back in the bottle. If the resin stayed outside for a long time or it stayed under the light, you should also filter the resin.

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Q: Which resin is the best for LCD printers? Why?

A: Light absorption properties vary due to the content of resins. LCD devices absorb more light, it is best to use the resins recommended below.

Burn, Wax, RTV, Model

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Q: Why resins have different varieties for DLP and SLA printers?

A: As these technologies have different light sources , different types of resins are needed.These different types must be used due to the capabilities of curing the LED and laser light.


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Q: What happens to resins during curing?

A: Resin solidifies when struck by UV light or laser depending on the amount of light power, in common terms it is “curing”. It can cure for about a second.

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Q: How to polish the layer marks and get a smooth surface ?

A: You can easily polish the printed resins with very fine dremel, fine sandpaper and fine polishing equipment.

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Q: Can we compensate shrinkage in the CAD?

A: Yes, you can. If you want, you can do it directly in Rhino or Matrix. Or even while adding your files to check on the platform, you can scale it depending on the shrinkage rate. So after the print, your model size will be the way you need.

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Q: What is the density of resins?

A: The density of all Powerresins products is 1.17 g / cm3

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Q: Can I get silicone mold/rubber mold from a castable resin ?

A: Yes it might be possible, but you need to post cure the print to make it harder. Also take note that not all models are suitable to make silicone molds.

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Q: How can I avoid shrinkage?

A: If you want to avoid shrinkage you can scale up your model on CAD apps. If you don’t want your models to shrink after printing, then you should not keep it in the alcohol so long. After cleaning it, you should put it in the zip bag and keep it in a dark place. You should keep away the models from the light source.

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Q: In Which conditions should I stock my resin ?

A: You should keep your resin stock at room temperature conditions of 25C degree. Keep it away from the sun or light or close to AC.
.

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Q: Can I leave resin in my tray overnight?

A: You can keep your resin in the tray overnight but we would recommend keeping it inside of the bottle. If you will not use the resin, then it’s safer to put it in the bottle.

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Q: Why do I need to shake my resin before printing?

A: Shaking helps to mix different kinds of elements in the resin which make it more reactive especially when it is not used for a long time.

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Q: Why do I need to use ethanol rather than IPA for washing?

A: Ethanol is better because it is not corrosive compared to IPA which could affect the print during washing.

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Q: Which resin can I use for rubber mold?

A: Each resin and its application have their own characteristics. In order to get a mold, the material to be used should be known. You should also know that it is not possible to get a rubber mold with castable resins, because the temperatures and the pressure that are applied during the baking process of the rubber paste directly damages the castable resins. However if you want to take a silicone mold at room temperature, you can use castable resins too.

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Q: Why resins have different varieties for DLP and SLA printers?

A: As these technologies have different light sources , different types of resins are needed.These different types must be used due to the capabilities of curing the LED and laser light.

 
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Q: What is the difference between Burn, Opaque, Wax and Dark castable resins?

A: 

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Q: Which parameters are recommended for crown & bridge design in Exocad ?

A: 

Exocad  1-3 Die Crown-bridge Parameters

Exocad  3-6 Die Crown-bridge Parameters

Exocad  Full Mouth Die Crown-bridge Parameters

Q: Which parameters are recommended for partial design in Exocad ?

A: 


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Q: Which parameters are recommended for crown & bridge design in Sirona Inlab ?

A: 

Sirona Inlab 1-2 Die Crown-bridge Parameters

Sirona Inlab 2-7 Die Crown-bridge Parameters

Sirona Inlab Full Mouth Crown-bridge Parameters


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Q: Which parameters are recommended for crown & bridge design in Dentalwings ?

A: 

Dentalwings Single-Die Crown-bridge Parameters

Dentalwings Full Mouth Crown-bridge Parameters

Dentalwings 3-7 Die Crown-bridge Parameters

Q: Which parameters are recommended for crown & bridge design in 3 Shape?

A: 

3 Shape 1-2 Die Crown-bridge Parameters

3 Shape 3-7 Die Crown-bridge Parameters

3 Shape Full Mouth Die Crown-bridge Parameters


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Q: How can I check my 3d designs for before printing? ( 3dbuilder, meshmixer and netfabb etc..) 

A: Open your model with 3D Builder which is the free application for Windows, click on the ‘import model’ tab that appears on the upper left corner. If your model is suitable for printing, it will be covered with a blue stripe. If you have a faulty model, your design will appear in a red frame. Make your model suitable for printing by clicking the “click to repair” icon in the lower right corner.
In addition, you can examine your models from the “edit model” section of Dentafab machines. You can detect mistakes on this page where you can control the layers one by one.
To use this page effectively , you can contact the Dentafab technical team

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Q: How can I add support to my 3d designs to prepare to print ?

A: Before you support your model, position the print to be taken accordingly to your application. While positioning, set the most important parts of your application not to get support. Open your model in the Novafab Slicer application we shared with you. Lift it up 2mm and click the auto support button to finish the support process.

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Q: Do you have any recommendations for casting parameters and water - liquid ratio to invesments?

A: Here we recommend a certain burnout cycle that is used by a dental lab, however please note that most of our customers uses different burnout and casting process. 

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Q: Boric acid affects in good casting?

A: It depends if you are using wax or resin. In wax while there is expansion during the burn out process, boric acid can be helpful to make the investment harder. But for resin, we do not suggest using boric acid because it does not expand.

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Q: Which investment is best for casting?

A: All investment powder is best for casting, all you need to do is follow the instructions on how to best use it.

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