Looking for input as I learn about and design my first 3D printer February 01, 2014 02:27PM |
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Re: Looking for input as I learn about and design my first 3D printer February 02, 2014 05:28AM |
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Re: Looking for input as I learn about and design my first 3D printer February 02, 2014 03:22PM |
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Re: Looking for input as I learn about and design my first 3D printer February 06, 2014 08:13PM |
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Re: Looking for input as I learn about and design my first 3D printer February 06, 2014 08:33PM |
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Re: Looking for input as I learn about and design my first 3D printer February 07, 2014 01:58AM |
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Re: Looking for input as I learn about and design my first 3D printer February 07, 2014 06:17PM |
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Re: Looking for input as I learn about and design my first 3D printer February 07, 2014 07:25PM |
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Re: Looking for input as I learn about and design my first 3D printer February 07, 2014 07:29PM |
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Re: Looking for input as I learn about and design my first 3D printer February 08, 2014 08:33AM |
Registered: 10 years ago Posts: 553 |
Quote
MeltManBob
So are there any suggestions regarding a good plastic to replace linear bearings?
Re: Looking for input as I learn about and design my first 3D printer February 08, 2014 03:35PM |
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Re: Looking for input as I learn about and design my first 3D printer February 08, 2014 04:23PM |
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Re: Looking for input as I learn about and design my first 3D printer February 08, 2014 10:04PM |
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Re: Looking for input as I learn about and design my first 3D printer February 08, 2014 10:18PM |
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Re: Looking for input as I learn about and design my first 3D printer February 09, 2014 03:17PM |
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Re: Looking for input as I learn about and design my first 3D printer February 09, 2014 03:25PM |
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Re: Looking for input as I learn about and design my first 3D printer February 10, 2014 06:47AM |
Registered: 11 years ago Posts: 791 |
Use a solidstate relay to switch the power to the heated bed. The electronics that normally control the heated bed is used to control the solidstate relay. In this way you are drawing very little power from the electronics and can switch high currents of power for the heated bed.Quote
kscharf
I have another question. Was thinking about building a bed heater. I found 10 pieces of 0.1 ohm 25 watt metal cased power resistors (the kind you can bolt to a heat sink) in the junk box. Connected in series (1 ohm) they would pull 12 amps from a 12 volt supply for 144 watts of power. This is more than the RAMPS board can control on board (unless I jumper out the fuse or replace it with a REAL fuse at a higher current.). How does the firmware regulate the bed temperature? Is it just on/off or does it use PWM? If it is just on/off I can simply let the board control a relay. If it is PWM I would need to use an external power fet or put a heat sink on the one on the board and replace the fuse.
Would this work?
Re: Looking for input as I learn about and design my first 3D printer February 10, 2014 08:40AM |
Registered: 10 years ago Posts: 66 |