So I decided to play with my exposure settings a bit, and came up with some interesting results.I'm not trying to persuade anyone of anything here, and I feel obliged to point out that this is only done with one resin, and there are other factors (cleaning, post-curing etc.) that can have had some impact to., so my conclusions may not necessarily be relevant to everyone.
Anyhoo, the things that stood out most to me were:
1) This resin works pretty well across the range of exposure times, it is not 'that' sensitive.
2) 0.02mm layers actually gave slightly worse detail than 0.05mm layers, for this combination of resin, model etc.
3) I feel that 9s exposure for 0.05mm was best, compared to 8s at 0.02mm layers - i.e. very little difference. I didn't try 0.02 at 9s, but maybe that would have been better than 8s
4) In order to get some small positive details to show up (the spikes on the top), I had to choose settings that over-exposed other parts of the model. So there is no 'perfect' exposure time.
I have attached a few photos showing comparisons, for anyone who is interested. The STL is the Ameralabs calibration town (I'll put in a link), and the resin is PrimaCreator Value Grey. I printed 4 of these at a time to ensure the variations were not too random. My apologies for the slightly fuzzy picturees in some cases (the details are small and I cannot find my macro adapter, plus I was too lazy to go back and repeat photos of the worst ones ;o)
This first photo shows the difference between prints at 0.05mm ranging from 8s to 12s exposure time. I have previously been using 12s as my standard time for this resin at this layer height and have been happy with the results, but I am going to drop to 9s from now.
所以我決定玩一下我的曝光設定, 並產生了一些有趣的結果. 我沒有試圖說服任何人, 我不得不指出, 這只是用一種樹脂完成, 還有其他因素(清潔, 治癒後治療等)可以產生一些影響., 所以我的結論不一定與每個人相關.
不管怎樣, 我最突出的是:
1)這種樹脂在曝光時間範圍內運作良好, 並不是"那麼敏感.
2) 0.02 mm層實際上給出的細節比0.05 mm層稍微差一些, 對於這種樹脂, 模型等組合.
3)我覺得9秒曝光最好, 而0.02毫米層的8 s曝光最好也就是說差別很小. 我在9年代沒有嘗試過0.02, 但也許那會比8年代更好
4)為了獲得一些微小正面細節出現(頂部的尖峰, 我不得不選擇模特其他部分曝光的設定. 所以沒有"完美"曝光時間.
我附上了幾張比較的照片, 給有興趣的人. Stl是ameralabs校准鎮(我會放入連結), 樹脂是原始的價值灰色. 我一次列印了4個, 以確保變化不會太隨機. 我對有些情況下有點模糊的照片道歉(細節很小, 我找不到我的宏觀介面卡, 而且我太懶惰, 無法回去重復最糟糕的照片 ;o)
這張第一張照片顯示的是0.05毫米的指紋之間的差別, 從8秒到12秒之間. 我以前一直在這層高度使用12 s作為標準時間, 對結果感到滿意, 但從現在開始下降到9 s.
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