D3D v20.04: Difference between revisions

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*New firmware builds upon the last version with 3-wire endstops - from [[3D Printer Genealogy]] - the first version that had 2-wire endstops was [[D3D v19.02]]. Change log from v19.12 firmware states " Change log: endstop_reversing was reversed on X and Y compared to former versions". Thus, chaning this only would suffice - reversing back to the opposite of [[File:Marlin_D3D_Pro_v1.0.zip]]
*New firmware builds upon the last version with 3-wire endstops - from [[3D Printer Genealogy]] - the first version that had 2-wire endstops was [[D3D v19.02]]. Change log from v19.12 firmware states " Change log: endstop_reversing was reversed on X and Y compared to former versions". Thus, chaning this only would suffice - reversing back to the opposite of [[File:Marlin_D3D_Pro_v1.0.zip]]
*New file: [[File:Marlin_D3D_Pro_2.zip]]
*New file: [[File:Marlin_D3D_Pro_2.zip]]
=Heater Element=
(See [[Nichrome Calculator]])
Notes:
*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.
*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 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:
[[File:d3d2004nichromecalc.png|200px]]
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.
[[File:2020.png|200px]]
*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:
[[File:actualwrap.png|500px]]


=Heater Element Wrapping Procedure=
=Heater Element Wrapping Procedure=

Revision as of 06:24, 20 April 2020

Developent Template

D3D v20.04
Description Link to Work Product %
DESIGN
1 Requirements + Value Proposition D3D_v20.04 Requirements + Value Proposition {{{1}}}
2 Industry_Standards D3D_v20.04 Industry Standards {{{2}}}
3 Conceptual Design D3D_v20.04 Conceptual Design {{{3}}}
4 Module Breakdown D3D_v20.04 Module Breakdown 20
5 3D CAD D3D_v20.04#3D CAD 20
6 Calculations D3D_v20.04 Calculations {{{6}}}
7 Electronics Design D3D_v20.04 Electronics Design {{{7}}}
8 Wiring and Plumbing D3D_v20.04 Wiring and Plumbing {{{8}}}
9 Software D3D_v20.04 Software {{{9}}}
BILL OF MATERIALS
10 BOM D3D_v20.04 BOM {{{10}}}
21 BOM Optimization D3D_v20.04 BOM Optimization {{{21}}}
11 vBOM D3D_v20.04 vBOM {{{11}}}
12 CAM Files D3D_v20.04 CAM Files {{{12}}}
13 Cut List D3D_v20.04 Cut List {{{13}}}
BUILD
14 Build Instructions D3D_v20.04 Build Instructions {{{14}}}
22 Quality Control Checklist D3D_v20.04 Quality Control Checklist {{{22}}}
15 Fabrication Drawings D3D_v20.04 Fabrication Drawings {{{15}}}
16 Exploded Part Diagram D3D_v20.04 Exploded Part Diagram {{{16}}}
17 Production Engineering D3D_v20.04 Production Engineering {{{17}}}
DATA COLLECTION
18 Build Pictures and Video D3D_v20.04 Build Pictures and Video {{{18}}}
23 Troubleshooting and Repair D3D_v20.04 Troubleshooting and Repair {{{23}}}
19 Data Collection D3D_v20.04 Data Collection 15
20 Future Work D3D_v20.04 Future Work {{{20}}}

Specifications

Working Doc


edit

3D CAD

D3d v2004.pngWithsidehole.pngFattened.pngAutop.pngNewbedholder.pngNewbedholder2.pngNewbedholder3.pngPanelholder.pngEndstopstopcombo.png

Cut List

Using 3D Printer Workbench 2020:

  1. X - [2] 22”
  2. Y - [4] 21”
  3. Z, bed, spool holder - [9] 17”

Firmware

  • Firmaware goes back from the 2-wire endstops to 3-wire endstops with indicator light to make fabrication easier. File:Marlin D3D Pro v1.0.zip no longer works.
  • New firmware builds upon the last version with 3-wire endstops - from 3D Printer Genealogy - the first version that had 2-wire endstops was D3D v19.02. Change log from v19.12 firmware states " Change log: endstop_reversing was reversed on X and Y compared to former versions". Thus, chaning this only would suffice - reversing back to the opposite of File:Marlin D3D Pro v1.0.zip
  • New file: File:Marlin D3D Pro 2.zip

Heater Element Wrapping Procedure

  1. Cut 14' of ga 24 nichrome
  2. Cut 5' of tight 2 mm fiberglass sleeve
  3. start the wrap of nichrome on one end of sleeve
  4. Attach other end of sleeve to a free-spinning rotor
  5. Once enough to go inside a cordless drill chuck - grab the nichrome wrap and turn on the drill in reverse to start wrapping. Tension the sleeve against the rotor
  6. Wrap away! A person should be able to wrap 4 feet long just by holding a cordless drill
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