120V Heatbed: Difference between revisions
Jump to navigation
Jump to search
| Line 17: | Line 17: | ||
*Kapton tape, 4"x100ft - $25 - [https://www.amazon.com/36-yds-Kapton-Tape-Polyimide/dp/B00ATRYG86/ref=pd_sim_b2b_4/131-5153422-3224104?_encoding=UTF8&pd_rd_i=B00ATRYG86&pd_rd_r=29f3b5d6-6092-11e9-9672-417ebf68296c&pd_rd_w=joR4G&pd_rd_wg=3o9ep&pf_rd_p=dcfdcb09-d2eb-4188-bb91-71dad27375f9&pf_rd_r=NXS891ZH7DZ9FG2QARRA&psc=1&refRID=NXS891ZH7DZ9FG2QARRA] | *Kapton tape, 4"x100ft - $25 - [https://www.amazon.com/36-yds-Kapton-Tape-Polyimide/dp/B00ATRYG86/ref=pd_sim_b2b_4/131-5153422-3224104?_encoding=UTF8&pd_rd_i=B00ATRYG86&pd_rd_r=29f3b5d6-6092-11e9-9672-417ebf68296c&pd_rd_w=joR4G&pd_rd_wg=3o9ep&pf_rd_p=dcfdcb09-d2eb-4188-bb91-71dad27375f9&pf_rd_r=NXS891ZH7DZ9FG2QARRA&psc=1&refRID=NXS891ZH7DZ9FG2QARRA] | ||
:*Enough for 300 small beds (4"), or 33 12" beds. | :*Enough for 300 small beds (4"), or 33 12" beds. | ||
==Coated 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]]. | |||
Revision as of 22:07, 16 April 2019
About
- OSE Reasons for using it are scalability and low cost for large beds. For small beds, we can make whatever size we need.
- Hackaday article - [1]
Sourcing
Pad
- Expensive on amazon - [2]
- Silicone rubber sheet - to 450F - [3] - $6/sf
- 10x10" heatbed aliexpress 500W - $10 - [4]
- 200W 8x8, $13 - [5]
Silicone Rubber Sheet
Double Sided Tape
- $3/sf - [8]
Single Sided Tape
- Kapton tape, 4"x100ft - $25 - [9]
- Enough for 300 small beds (4"), or 33 12" beds.
Coated 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.