Neodymium Magnets: Difference between revisions
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[[D3D]] uses 12mm x 3mm neodymium N52 magnets to hold axes to the frame. | {{Hint|[[D3D]] uses 12mm x 3mm neodymium N52 magnets to hold axes to the frame.}} | ||
=Cost= | =Cost= | ||
*'''18 cents US seller N50''' - [http://www.ebay.com/itm/LOT-N50-N35-12X3mm-Strong-Ring-Disc-Magnet-Round-Hole-4mm-Rare-Earth-Neodymium-/262950850500?var=&hash=item3d39178fc4:m:mZ_TGv3NlyiJYF-53bpHNTQ] | *'''18 cents US seller N50, 12 cents for N35''' - [http://www.ebay.com/itm/LOT-N50-N35-12X3mm-Strong-Ring-Disc-Magnet-Round-Hole-4mm-Rare-Earth-Neodymium-/262950850500?var=&hash=item3d39178fc4:m:mZ_TGv3NlyiJYF-53bpHNTQ] | ||
*'''28 cents Brooklyn seller - [http://www.ebay.com/itm/25-50-100pc-12mm-x-3mm-1-2-x-1-8-N52-Strong-Rare-Earth-Neodymium-Magnet-Disc-/302030262749?var=&hash=item46526811dd:m:mwInpFTJNe0z38bJt7A8xag]''' | *'''28 cents Brooklyn seller - [http://www.ebay.com/itm/25-50-100pc-12mm-x-3mm-1-2-x-1-8-N52-Strong-Rare-Earth-Neodymium-Magnet-Disc-/302030262749?var=&hash=item46526811dd:m:mwInpFTJNe0z38bJt7A8xag]''' | ||
*40 cents - 1/2" - [https://www.amazon.com/gp/aw/d/B01LZ2XRML/ref=mp_s_a_1_1?ie=UTF8&qid=1484023257&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=100+pcs+super+magnet] | *40 cents - 1/2" - [https://www.amazon.com/gp/aw/d/B01LZ2XRML/ref=mp_s_a_1_1?ie=UTF8&qid=1484023257&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=100+pcs+super+magnet] | ||
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*17 cents 12x3 from china n52 - [http://www.ebay.com/itm/10-100pcs-Neodymium-Disc-Super-Strong-Rare-Earth-N50-Fridge-Magnets-12mm-X-3mm/271966141120?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Da4e551f3afe442f6ae95249f8d99f4fc%26pid%3D100338%26rk%3D3%26rkt%3D30%26mehot%3Dag%26sd%3D131584348169&var=570794963223] | *17 cents 12x3 from china n52 - [http://www.ebay.com/itm/10-100pcs-Neodymium-Disc-Super-Strong-Rare-Earth-N50-Fridge-Magnets-12mm-X-3mm/271966141120?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Da4e551f3afe442f6ae95249f8d99f4fc%26pid%3D100338%26rk%3D3%26rkt%3D30%26mehot%3Dag%26sd%3D131584348169&var=570794963223] | ||
*'''28 cents 12x3 @ 1000 from UK n52''' - [https://www.etsy.com/cart/]. This appears to be the best option. | *'''28 cents 12x3 @ 1000 from UK n52''' - [https://www.etsy.com/cart/]. This appears to be the best option. | ||
*7 cents 10x2 HK n52 (looks like 1/16" thickness) - [http://www.ebay.com/itm/100pcs-Super-Strong-Disc-Magnets-10mm-x-2mm-Rare-Earth-Neodymium-NdFeB-N52-Grade-/351897015036?tfrom=400920139676&tpos=top&ttype=price&talgo=undefined]. While this looks cheaper, this is not because of the lower strength of 10x2. | *'''7 cents 10x2 HK n52''' (looks like 1/16" thickness) - [http://www.ebay.com/itm/100pcs-Super-Strong-Disc-Magnets-10mm-x-2mm-Rare-Earth-Neodymium-NdFeB-N52-Grade-/351897015036?tfrom=400920139676&tpos=top&ttype=price&talgo=undefined]. While this looks cheaper, this is not because of the lower strength of 10x2. | ||
*16 cents 12x3 n50 - [http://www.ebay.com/itm/Hot-12mm-x-3mm-50Pcs-100Pcs-Strong-Round-Disc-Magnets-Rare-Earth-Neodymium-N50/291945201588?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Ddf591db2f8254cea9fe733c6b738ebaf%26pid%3D100338%26rk%3D1%26rkt%3D30%26sd%3D331967589024] | *16 cents 12x3 n50 - [http://www.ebay.com/itm/Hot-12mm-x-3mm-50Pcs-100Pcs-Strong-Round-Disc-Magnets-Rare-Earth-Neodymium-N50/291945201588?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3Ddf591db2f8254cea9fe733c6b738ebaf%26pid%3D100338%26rk%3D1%26rkt%3D30%26sd%3D331967589024] | ||
*'''12 cents 12x3 n50 china''' - [http://www.ebay.com/itm/like/222263882733?lpid=82&chn=ps&ul_noapp=true] | *'''12 cents 12x3 n50 china''' - [http://www.ebay.com/itm/like/222263882733?lpid=82&chn=ps&ul_noapp=true] | ||
*'''14 cents 12x3 n50 china''' - [http://www.ebay.com/itm/100pcs-Neodymium-Disc-Mini-12mm-X-3mm-Rare-Earth-N50-Strong-Magnets-Craft-Models/291501924915?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3D59fcd909da5a4f2cbcb0ee6cb55e2d39%26pid%3D100338%26rk%3D9%26rkt%3D27%26sd%3D191980289679] | *'''14 cents 12x3 n50 china''' - [http://www.ebay.com/itm/100pcs-Neodymium-Disc-Mini-12mm-X-3mm-Rare-Earth-N50-Strong-Magnets-Craft-Models/291501924915?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3D59fcd909da5a4f2cbcb0ee6cb55e2d39%26pid%3D100338%26rk%3D9%26rkt%3D27%26sd%3D191980289679] | ||
*''' | *'''14 cents 12x3 China''' - [http://www.ebay.com/itm/Strong-Neodymium-Disc-Super-Strong-Rare-Earth-N50-Fridge-Magnets-Wholesales/272428421350?_trksid=p2385738.c100677.m4598&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20160908110712%26meid%3D4dc2e3c15e0e436fbb6cb8aaff4a70bd%26pid%3D100677%26rk%3D3%26rkt%3D37%26sd%3D222263882733] | ||
=Strength= | =Strength= | ||
Latest revision as of 18:22, 30 September 2019
Hint: D3D uses 12mm x 3mm neodymium N52 magnets to hold axes to the frame.
Cost
- 18 cents US seller N50, 12 cents for N35 - [1]
- 28 cents Brooklyn seller - [2]
- 40 cents - 1/2" - [3]
- 10 cents - 10x2 N50 - [4]
- 31c 12x3mm - [5]
- 40 cents 12x3 n52 - [6]
- 17 cents USA 12x3 n35 - [7]
- 17 cents 12x3 from china n52 - [8]
- 28 cents 12x3 @ 1000 from UK n52 - [9]. This appears to be the best option.
- 7 cents 10x2 HK n52 (looks like 1/16" thickness) - [10]. While this looks cheaper, this is not because of the lower strength of 10x2.
- 16 cents 12x3 n50 - [11]
- 12 cents 12x3 n50 china - [12]
- 14 cents 12x3 n50 china - [13]
- 14 cents 12x3 China - [14]
Strength
- 12x3mm appears to be 8 lb - [15]
- 10x3mm is 5.5 lb - [16]
- 20x10x2mm is 4.8 lb - [17]
- 10x2mm n52 is 2.6 lb - [18]
- 12x2mm n52 is 3.8 lb - [19] - note - this is probably 1/16", or 1/2 the pull force of the 1/8" version (3 mm)
- 6x3mm n52 is 2.9 lb - [20]
- 6x6mm n52 is 4.2 lb - [21]
- 25x2mm n42 is 6.8 lb -[22]
- 6x1.5mm n35 - 1 lb - [23]
Notes
- 2 mm compared to 3 mm appears to be 1/2 as strong. 2 mm is really 1.6 mm, of 1/16", compared to 1/8", or 3 mm. That makes sense.
- Thus, it's more favorable to go with 3mm thickness.
Tested
- Ebay [24] - 25 for $11 - 48 cents.