120V Heatbed: Difference between revisions
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==Pad== | ==Pad== | ||
*'''400+ watt 8" beds do not exist - [https://www.aliexpress.com/item/Silicone-Heating-pad-Hot-bed-Size-200-200mm-220-220-300-300mm-400-400mm-12V-110V/32884436329.html?spm=2114.search0604.8.4.42af6001eRTDz3&transAbTest=ae803_3]. It is questionable whether this one has 500W on 120V - [https://www.aliexpress.com/item/3d-printer-Accessories-200X200mm-500W-220V-110V-24V-Cube-Flexible-Silicone-Heater-Prusa-i3-RepRap-3D/32821470873.html?spm=2114.10010108.1000023.2.2cd155596aYW3r]. Closest is the Ultimaker clone - [https://www.aliexpress.com/item/200X240mm-500W-120V-Ultimaker-2-Clone-3D-Printer-Heated-Bed-Keenovo-Silicone-Heater-Pad/32574665339.html?spm=2114.search0604.3.8.418f2e71ATHbuV&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10130_10068_10890_10547_319_10546_317_10548_10545_10696_453_10084_454_10083_10618_10307_537_536_10059_10884_10887_321_322_10103,searchweb201603_6,ppcSwitch_0&algo_expid=6c802c37-3a1e-4049-974f-426d28b2a55c-1&algo_pvid=6c802c37-3a1e-4049-974f-426d28b2a55c&transAbTest=ae803_3] | *'''400+ watt 8" beds do not exist - [https://www.aliexpress.com/item/Silicone-Heating-pad-Hot-bed-Size-200-200mm-220-220-300-300mm-400-400mm-12V-110V/32884436329.html?spm=2114.search0604.8.4.42af6001eRTDz3&transAbTest=ae803_3]. It is questionable whether this one has 500W on 120V - [https://www.aliexpress.com/item/3d-printer-Accessories-200X200mm-500W-220V-110V-24V-Cube-Flexible-Silicone-Heater-Prusa-i3-RepRap-3D/32821470873.html?spm=2114.10010108.1000023.2.2cd155596aYW3r]. Closest is the Ultimaker clone - [https://www.aliexpress.com/item/200X240mm-500W-120V-Ultimaker-2-Clone-3D-Printer-Heated-Bed-Keenovo-Silicone-Heater-Pad/32574665339.html?spm=2114.search0604.3.8.418f2e71ATHbuV&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10130_10068_10890_10547_319_10546_317_10548_10545_10696_453_10084_454_10083_10618_10307_537_536_10059_10884_10887_321_322_10103,searchweb201603_6,ppcSwitch_0&algo_expid=6c802c37-3a1e-4049-974f-426d28b2a55c-1&algo_pvid=6c802c37-3a1e-4049-974f-426d28b2a55c&transAbTest=ae803_3] | ||
*Expensive on amazon - [https://www.amazon.com/approx-KEENOVO-Universal-Flexible-Silicone/dp/B00V81ZI70] | *8" bed on amazon is $84. [https://www.ebay.com/itm/8-x8-500W-110V-KEENOVO-Silicone-Heater-3D-Printer-Heat-Bed-Digital-Controller/271835537775?hash=item3f4aa9216f:g:u2wAAOSwUdlWdUSM] | ||
*Expensive 12" on amazon - [https://www.amazon.com/approx-KEENOVO-Universal-Flexible-Silicone/dp/B00V81ZI70] | |||
*Silicone rubber sheet - to 450F - [https://www.homedepot.com/p/Rubber-Cal-Silicone-1-16-in-x-36-in-x-12-in-Translucent-Commercial-Grade-60A-Rubber-Sheet-20-119-0062-36-012/304273403] - $6/sf | *Silicone rubber sheet - to 450F - [https://www.homedepot.com/p/Rubber-Cal-Silicone-1-16-in-x-36-in-x-12-in-Translucent-Commercial-Grade-60A-Rubber-Sheet-20-119-0062-36-012/304273403] - $6/sf | ||
*10x10" heatbed aliexpress 500W - $10 - [https://www.aliexpress.com/item/DuoWeiSi-3D-Printer-parts-25x25CM-Heatbed-12-24-110-120-220V-200-300-400-500W-Thermostor/32911067538.html?src=google&albslr=230366462&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=1582410664&albag=59754279756&trgt=296904914040&crea=en32911067538&netw=u&device=c&gclid=EAIaIQobChMIjbror8nV4QIVL_bjBx1LtwCoEAQYBSABEgL8__D_BwE&gclsrc=aw.ds] | *10x10" heatbed aliexpress 500W - $10 - [https://www.aliexpress.com/item/DuoWeiSi-3D-Printer-parts-25x25CM-Heatbed-12-24-110-120-220V-200-300-400-500W-Thermostor/32911067538.html?src=google&albslr=230366462&src=google&albch=shopping&acnt=494-037-6276&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&&albagn=888888&albcp=1582410664&albag=59754279756&trgt=296904914040&crea=en32911067538&netw=u&device=c&gclid=EAIaIQobChMIjbror8nV4QIVL_bjBx1LtwCoEAQYBSABEgL8__D_BwE&gclsrc=aw.ds] | ||
Revision as of 18:13, 17 April 2019
About
- OSE Reasons for using a nichrome 120V bed are scalability and lower cost for large beds.
- Reason for DIY nichrome beds is clear for larger beds, which would be rather expensive.
- Significant testing is needed for a safe method. Fiberglass coated wire, insulated bed, clamp-on as opposed to double sided tape is preferred for higher temperature printing. For small beds, we can make whatever size we need.
- Hackaday article - [1]
Sourcing
Pad
- 400+ watt 8" beds do not exist - [2]. It is questionable whether this one has 500W on 120V - [3]. Closest is the Ultimaker clone - [4]
- 8" bed on amazon is $84. [5]
- Expensive 12" on amazon - [6]
- Silicone rubber sheet - to 450F - [7] - $6/sf
- 10x10" heatbed aliexpress 500W - $10 - [8]
- 200W 8x8, $13 - [9]
Silicone Rubber Sheet
Double Sided Tape
- $3/sf - [12]
Single Sided Tape
- Kapton tape, 4"x100ft - $25 - [13]
- Enough for 300 small beds (4"), or 33 12" beds.
Coated Nichrome Wire
- Need 30 Ohms of wire, about 10' long
- See Nichrome Wire
Uncoated Nichrome Wire
- Need 30 Ohm resistance for the length of wire at 120V to get 480W, for P=IV, V=IR, I=V/R -> P=V^2/R = 120^2/30 according to Electrical Power Calculator.