3D printer molds for head phantom shapes

Mold shapes for casting gelatine into a head shape for creating head phantoms as used in: - S. Kohli and A. J. Casson, “Removal of gross artifacts of transcranial alternating current stimulation in simultaneous EEG monitoring,” Sensors, vol. 19, no. 190, pp. 1–23, 2019. - S. Kohli and A. J. Casson, “Towards close-loop tES: Workload monitoring during tACS stimulation,” Brain Stimulation, vol. 10, no. 4, pp. e28–e29, 2017. - S. Kohli, S. Krachunov and A. J. Casson, “Towards closed-loop transcranial Electrical Stimulation: a comparison of methods for real time tES-EEG artefact removal using a phantom head model,” Brain Stimulation, vol. 10, no. 2, pp. 467–468, 2017. - S. Kohli and A. J. Casson, “Towards signal processing assisted hardware for continuous in-band electrode impedance monitoring,” IEEE International Symposium on Circuits and Systems, Baltimore, May 2017. Head shape is based upon a human dummy used for automotive testing, with source https://grabcad.com/library/mannequin-1. This has been hollowed out so that it can be filled with gelatine to get the wanted shape. The mold is broken down into 7 pieces, each small enough to be produced on a desktop sized 3D printer. These should be printed, and then a Silicone seal used to to have a water tight connection between the different parts, before filling with gelatine. We usually print in PLA, but a flexible filament could be used to help with easy removal. If you have a larger printer, the pieces could be combined (the best option is to have just two pieces to print and seal together as this will minimize leaks from the seal.)用于浇筑明胶以制作头部造型的模具，该头部造型用于构建如下文献中所使用的头部体模（head phantom）： - S. Kohli与A. J. Casson, "同步脑电图监测中经颅交流电刺激的显著伪影去除方法", 《传感器》（Sensors）, 第19卷, 第190期, 第1–23页, 2019年。 - S. Kohli与A. J. Casson, "迈向闭环经颅电刺激：tACS刺激过程中的工作负荷监测", 《脑刺激》（Brain Stimulation）, 第10卷, 第4期, 第e28–e29页, 2017年。 - S. Kohli、S. Krachunov与A. J. Casson, "迈向闭环经颅电刺激：基于头部体模模型的实时tES-EEG伪影去除方法对比", 《脑刺激》（Brain Stimulation）, 第10卷, 第2期, 第467–468页, 2017年。 - S. Kohli与A. J. Casson, "面向连续带内电极阻抗监测的信号处理辅助硬件", IEEE国际电路与系统研讨会, 巴尔的摩, 2017年5月。 该头部造型基于一款用于汽车测试的人体模型，其源文件链接为https://grabcad.com/library/mannequin-1。该模型已被掏空，可灌注明胶以获得所需造型。 本模具被拆分为7个部件，每个部件的尺寸均适配桌面级3D打印机的加工能力。打印完成后，需使用硅胶密封剂实现各部件间的水密连接，之后方可灌注明胶。我们通常采用聚乳酸（PLA）耗材进行打印，也可选用柔性耗材以方便脱模。若配备大幅面3D打印机，可将部件合并打印（最优方案为仅打印并密封两个部件，可最大限度减少密封处的渗漏问题）。