D3D v20.04 Build Instructions: Difference between revisions
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=Build Procedure= | |||
Almost completely there: | |||
<html><iframe src="https://docs.google.com/presentation/d/e/2PACX-1vRKiNuhzhG9gR_9KyK1CdPyDryBtoqdhg3NU5n2kjZqpg0t05-glhTnkLmwr1iSCJYpwfvkGWI_A_Ku/embed?start=false&loop=false&delayms=3000#3" frameborder="0" width="480" height="389" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html> | |||
[https://docs.google.com/presentation/d/1-tsozcFWVngwjjhr9Mp4843hSGy8iQDH__hKvnzkPew/edit#slide=id.g5c3be0ce2d_1_28 edit] | |||
=Heater Element for Bed - 24 Gauge= | =Heater Element for Bed - 24 Gauge= | ||
(See [[Nichrome Calculator]]) | (See [[Nichrome Calculator]]) | ||
Includes 2 strads of heater element - each 600W strong. | |||
Notes: | Notes: | ||
*'''Length of 24 gauge nichrome - 14 feet''' | |||
*Fiberglass sleeve used - HTG fiberglass, does not fray like standard high temperature sleeving (1000F) and is rated for . See [http://www.hitexinsulation.com/products/HTG-Fiberglass-Sleeve.htm]. Note that the resin can burn out at the 650C (1200F) workign temp. Sleeve has [[VW-1]] flame resistance. Made of fiberglass, it does not burn out, but may fuse and lose fiber structure. | *Fiberglass sleeve used - HTG fiberglass, does not fray like standard high temperature sleeving (1000F) and is rated for . See [http://www.hitexinsulation.com/products/HTG-Fiberglass-Sleeve.htm]. Note that the resin can burn out at the 650C (1200F) workign temp. Sleeve has [[VW-1]] flame resistance. Made of fiberglass, it does not burn out, but may fuse and lose fiber structure. | ||
*Inner core: 5' long wraparound of 2mm tight braid fiberglass sleeve - 600C - [https://www.aliexpress.com/item/32862062385.html?spm=a2g0s.9042311.0.0.27424c4dnHgKvS]. Started with 5', wrap was more like 4' long. | *'''Inner core: 5' long wraparound of 2mm tight braid fiberglass sleeve - 600C - [https://www.aliexpress.com/item/32862062385.html?spm=a2g0s.9042311.0.0.27424c4dnHgKvS]. Started with 5', wrap was more like 4' long. | ||
*This is packed into 4' of 6 mm tight braid fiberglass sleeve. | *'''This is packed into 4' of 6 mm tight braid fiberglass sleeve. | ||
*Fence wire is used to couple 200C wire to nichrome, in order not to burn out 200C wire. Nichrome is wrapped around the fence wire 5-10 turns | *Fence wire is used to couple 200C wire to nichrome, in order not to burn out 200C wire. Nichrome is wrapped around the fence wire 5-10 turns | ||
*Copper wire is soldered to the fence wire. | *Copper wire is soldered to the fence wire. | ||
Latest revision as of 23:25, 28 July 2020
Build Procedure
Almost completely there:
Heater Element for Bed - 24 Gauge
(See Nichrome Calculator)
Includes 2 strads of heater element - each 600W strong.
Notes:
- Length of 24 gauge nichrome - 14 feet
- Fiberglass sleeve used - HTG fiberglass, does not fray like standard high temperature sleeving (1000F) and is rated for . See [1]. Note that the resin can burn out at the 650C (1200F) workign temp. Sleeve has VW-1 flame resistance. Made of fiberglass, it does not burn out, but may fuse and lose fiber structure.
- Inner core: 5' long wraparound of 2mm tight braid fiberglass sleeve - 600C - [2]. Started with 5', wrap was more like 4' long.
- This is packed into 4' of 6 mm tight braid fiberglass sleeve.
- Fence wire is used to couple 200C wire to nichrome, in order not to burn out 200C wire. Nichrome is wrapped around the fence wire 5-10 turns
- Copper wire is soldered to the fence wire.
- 10" end piece of 6 mm tight braid sleeve covers the 200C wire, fence wire, and ends of nichrome.
- 2 strands of 24 ga nichrome heater element are made, each 14' long, each about 600W.
- Ends, covered by 6 mm tight braid sleeve - stick out the finished bed. Third wire set is the thermistor, which is wrapped with 2 mm tight braid so it doesn't melt out.
Heater Optimization
Theoretical idea:
But, ga 18 can't bend easily using a cordless drill.
- 20 feet of 20 ga wire appears to be most convenient - 1 piece, max at 1200F. Current 500W heater is 1200F max, and works well.
- Winner: 14 feet of 24 ga works perfectly by hand to get a good wrap over 4 feet, and goes fast, about 1 minute pending tieups:
