Thread 16709789

8 posts 2 images /sci/

Anonymous 6/29/2025, 2:22:16 AM No.16709789 [Report] >>16709791 >>16709794 >>16709800 >>16710223

Turbomolecular pump controller?

I need a cheap turbomolecular pump and controller for a project, however all the pumps I see on ebay do not come with a controller. Are there open source/DIY controller options out there? Most pumps are too small or busted to begin with.
What the FUCK do I do here

Anonymous 6/29/2025, 2:26:11 AM No.16709791 [Report]

>>16709789 (OP)
Also I guess I could do a diffusion pump but I'm worried about contaminants + the oil is expensive

Anonymous 6/29/2025, 2:36:36 AM No.16709794 [Report]

>>16709789 (OP)
Just buy the controller on eBay. There are plenty of cheap used controllers for the Turbo-V250

Anonymous 6/29/2025, 2:36:41 AM No.16709795 [Report] >>16709804

Why the fuck would you need that

Anonymous 6/29/2025, 2:44:20 AM No.16709800 [Report] >>16709804

>>16709789 (OP)
>turbopump
>cheap
Unless you need a ridiculously good vacuum you don't need a turbo or diffusion pump, or even a higher end rotary vane pump. For most DIY projects you can get away with a shitty little low end pump from like harbor freight or menards.

What's the project?

Anonymous 6/29/2025, 2:52:08 AM No.16709804 [Report] >>16710226

>>16709795
>>16709800
Sputtering

Anonymous 6/29/2025, 4:36:49 PM No.16710223 [Report]

>>16709789 (OP)
Controller for brushless motor?

Anonymous 6/29/2025, 4:40:03 PM No.16710226 [Report]

>>16709804
Oof, yeah that kind of needs the low pressure. Have you tried looking through university surplus sales?