Correct time for

Alex

Hi. My name is Alex. What is recommend curing time for High Strength Resin? 2-3MIN? For example if model sizes are 30mm height and 30mm/ diam? A made small gear and it had broken in 10 sec. And second question about settings. On the bottle says exposure time 3-4 s. Recommended print settings section says about 4-8s. I mean time for Other Layer Exposure Time. What is correct time ?

william

Alex Thanks for your question.
If you use it as a gear, you may need to consider whether the model is designed with sufficient torque.
3D printed gears may need to be thicker to achieve similar performance to metal

Alex

Hi, my main point was about exact time, because two different resurses give different time

Alex

Hi again. Question about correct curing time. It depends by size or is there an average indicator? for High Strength Resin? If the part only 5mm diameter? still 7-10minutes or much less? I need to get maximum strength for this small gear. Sincerely, Alex

william

Alex Hi again. Question about correct curing time. It depends by size or is there an average indicator? for High Strength Resin? If the part only 5mm diameter? still 7-10minutes or much less? I need to get maximum strength for this small gear. Sincerely, Alex

Hi,
If the part is only 5mm, you don't need so much curing time.
Our test method is based on the standard of 100x100x100mm, you can reduce the time appropriately.
Sorry, we haven't tried this extreme case, but in this case, metal components may be more suitable for your project, because the strength of resin and plastic cannot be comparable to metal at too small a size.
Of course, you can fine-tune it according to your project.
For example, the skeleton is metal, and the outer layer is supported by resin

Alex

Hi William,
i so appreciate for your response, but may be you ll give me some cly about exact time? This gear for boombox and there is no hard torque comparable to metal. For example 3-5 min Ok or still too mush?

william

Alex
I forgot to mention an important point, the light intensity level of your curing box.
The benchmark we tested is 200mw/cm2, and the time is 7_10min.
If the light intensity level of your curing box is a common curing box on the market, it is generally only 40_60mw/cm2.

You can follow this principle:

Standard workpiece 100x100x100mm
It takes 7_10min under 200mw/cm2, and it needs to be placed in a glass dish filled with water.
It takes 30_40min under 40_60mw/cm2, and it needs to be placed in a glass dish filled with water. But I don’t know if the curing box can work properly under long-term conditions. Maybe you can cure it multiple times to reach your requirements.
Small workpiece 25x25x25mm (or smaller like 5mm level)
It takes 3_5min under 200mw/cm2, and it needs to be placed in a glass dish filled with water.
It takes 20 to 30 minutes under the condition of 40 to 60 mw/cm2, and it needs to be placed in a glass dish filled with water.

Alex

My guess your resin probably strongest on the market and i want use it for old boomboxes repair

Alex

Wow! THK!
I/m not sure about light intensity my curing box, I have ELEGOO Mercury XS Bundle. But there is no any data about light intensity for that machine very important parameter / THK one more time! Will looking for info about.
Sincerely, Alex

william

Alex Wow! THK!
I/m not sure about light intensity my curing box, I have ELEGOO Mercury XS Bundle. But there is no any data about light intensity for that machine very important parameter / THK one more time! Will looking for info about.
Sincerely, Alex

The standard resins do not need strong light intensity to cure completely.
But special resins may need better curing box to improve efficiency.
For the specific parameters of your curing box, maybe you can send an email to Elegoo's technical support, they will tell you more about the curing box.
At last,
if you can share it here, I believe more people will be helped after seeing it.

Alex

Hi,
i have connected with Elegoo. They answered: "curing machine is Mercury XS. Then the UV light intensity should be 10-15mw/cm²,"

and the closer the distance, the higher the intensity.
Could you correct curing time use this info?

Alex

Are you sure about intensity 40-60mw/cm2,"for standart home use curing machines?

Alex

This is what i get from ELEGOO

"Generally speaking, 10-15 MW/cm² is the typical light intensity for some standard resins and equipment, while 40-60 MW/cm² is the required light intensity for certain high-intensity or specialty resins (such as fast-curing resins).
Hope this help"
Based on this info can i use my curing machine for your resin? Or another way, what now exact time i need , could you fix?

william

Alex
Elegoo's answer seems to have avoided the key information. So we can only temporarily classify the curing performance of ELEGOO Mercury XS Bundle as the weaker part.
You can print several prints and try to cure for 20_30min and 30_40min to verify the results.
This result can be obtained quickly. Of course, if you don't have a suitable test tool or method, you can choose a simple method such as hanging objects of the same weight several times to achieve the purpose of comparison.

Alex

Ok. THK!
Will do.
Have a nice day!