Rebuild worn CoreXY, what options should I consider? November 02, 2021 09:01AM |
Registered: 6 years ago Posts: 162 |
Re: Rebuild worn CoreXY, what options should I consider? November 02, 2021 12:43PM |
Registered: 11 years ago Posts: 5,770 |
Re: Rebuild worn CoreXY, what options should I consider? November 02, 2021 04:04PM |
Registered: 6 years ago Posts: 162 |
Re: Rebuild worn CoreXY, what options should I consider? November 02, 2021 04:27PM |
Registered: 11 years ago Posts: 5,770 |
Re: Rebuild worn CoreXY, what options should I consider? November 07, 2021 06:10AM |
Registered: 2 years ago Posts: 5 |
Re: Rebuild worn CoreXY, what options should I consider? November 07, 2021 11:21AM |
Registered: 3 years ago Posts: 91 |
Yeah, the great thing about one-off machine designs is that you can use whatever rails you can find cheap. My mini CNC mill has mostly $10 Chinese rails, but I did get one high quality wide rail on ebay. The two 300mm cheap rails are bowed, which would be a problem for a 3D printer where the rail itself is used as the X gantry, but when screwed to a stiff frame it's no problem. The six 200-250mm rails were all perfectly straight, with the only problem being preload consistency. But after mixing and matching the slider blocks to whichever rail they fit best, they're just as good as the fancy rail.Quote
the_digital_dentist
The PTFE sliding bearings used in the sand table are not suitable for a 3D printer. They are fine for a sand table, but they do not provide the sort of precise, accurate motion that is needed to produce a high quality print with a nozzle that is a fraction of a mm in diameter. The best linear bearings are linear guides, but these days there are a lot of crappy ones being sold cheaply to 3D printer hobbyists. Don't buy them. Buy surplus industrial parts for about the same price via ebay.
Re: Rebuild worn CoreXY, what options should I consider? November 08, 2021 02:54AM |
Registered: 6 years ago Posts: 162 |
Re: Rebuild worn CoreXY, what options should I consider? November 08, 2021 06:51AM |
Registered: 11 years ago Posts: 5,770 |
Re: Rebuild worn CoreXY, what options should I consider? November 08, 2021 07:56AM |
Registered: 3 years ago Posts: 91 |
Re: Rebuild worn CoreXY, what options should I consider? November 08, 2021 12:02PM |
Registered: 2 years ago Posts: 5 |
Re: Rebuild worn CoreXY, what options should I consider? November 09, 2021 01:02AM |
Registered: 6 years ago Posts: 162 |
Re: Rebuild worn CoreXY, what options should I consider? November 09, 2021 08:40AM |
Registered: 3 years ago Posts: 91 |