Simple Electrolytic separator V1

I made electrolysis of water at home, but I wanted to catch hydrogen so I made this. Design is bulky and this is because I am still working on this project. So tell me in the comments what should be improved. Read everything before starting this project. Feel free to ask me about something that you are not sure or I didn't mention.Post processing:Sand the areas that you can, but not too much.Use something like epoxy resin on the inside to prevent water leaking.Put stainless steel dowel pins in h