Anet A8 Optical Sensor Mount for Omron Spy 412 Auto Bed Leveling
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Somewhere In The Deep Of The Web , I'Ve Found A User, He Experimented With The Omron Ee Spy 402. After Reading The Manual I Decided Quickly To Buy One ( And Two More For Friends). Please Read The Manual And Technical Details From Here. (Https://Www.Ia.Omron.Com/Products/Family/440/Specification.Html) The Main Feature Are: Modulated Active Ir-Sensor. Short Distance. 5V And Npn That Means It Could Be Direct Wired To Original Z-Switch Connectors Accidentally I Orderd A Used One (Look@Ebay From 5-50€), But A Little Bit Diffrent Type Ee Spy 412. I Got Mine For 8Euros On Ebay. Please Read The Manual And Technical Details From Here. (Https://Www.Ia.Omron.Com/Products/Family/443/Specification.Html) The Main Feature Are Also : Modulated Avtive Ir-Sensor. Short Distance. 5V And Npn And Very Light Weighted. This Is For Users With Autolevel Enabled Firmware (I'M A Skynet User) . Do All The Steps That Described In Web To Enable Autolevel. (Https://3Dprint.Wiki/Reprap/Anet/A8/Improvement/Autobedleveling) If You Use M119 To Test The Triggering Use White Paper And Look To The Buildin Led!!! Triggering On Glass Bed Results In A Short Flash Around A Hotspot. You Need One Plug From Type: Jst Xhp-3 (Https://Www.Amazon.De/S%C3%A4Tze-2-5-3-Pin-Stecker-Stecker-Draht-Buchse/Dp/B01Du9Os5K/Ref=Sr_1_Fkmr0_1?S=Toys&Ie=Utf8&Qid=1491909206&Sr=1-1-Fkmr0&Keywords=Jst+Xh+2.5+3-P Or Https://Www.Amazon.De/Gp/Product/B01Du87Nt4/Ref=Oh_Aui_Detailpage_O00_S00?Ie=Utf8&Psc=1 ) Instead Of Use A Capazitive,Induktive, Mechanical Sensor Like Bltouch You Can Plug This Sensor Direct To The ( All The Three Wires) Board. You Didn'T Need A Octocoupler Or The Two Resitors And No Additonal 12V Needed. Almost Just Plug&Play. Wiring Is Very Easy. Solder 3 Small Wire (Lenght Each Arround 1M) To The Sensor And Be Careful With Temperature (Quick With A Small Solder Iron). Ground To Ground(-); 5V To Vcc(+); And Out To Signal. Look Here For Wiring: Https://3Dprint.Wiki/Reprap/Anet/A8/Improvement/Autobedleveling) I Designed A Very Easy Sensor Mount. It'S Equipped With Plasic Dowels, Which Fit In The (Non-Threaded) Holes On The Lower Rear Of The Slides Without Screws. You Only Need 2X M3 Screws And Nuts For The Sensor To Mount . The Nozzle Should To Be Below (1-3Mm) The Sensor. I Attach My Configuration.H From "Skynet" . The Offset Of Sensor Is X 18Mm & Y 45Mm Use At Your Own Risk, Be Careful And Keep Hands On The Powerswitch While Testing :-) I Use The Sensor With Glass, Buildtak, Fr4 And Carbon Bed. No Problem At All Yet. Skynet Configuration: Define X_Probe_Offset_From_Extruder 18 Define Y_Probe_Offset_From_Extruder 45 Testresults With Glass Bed: Define Z_Min_Probe_Repeatability_Test M48 P10 X100 Y100 Ecv: Mean: 2.514750 Min: 2.503 Max: 2.520 Range: 0.017 Recv: Standard Deviation: 0.005640 M48 P10 X50 Y50 Mean: 2.431000 Min: 2.425 Max: 2.437 Range: 0.013 Recv: Standard Deviation: 0.003905 M48 P10 X150 Y150 Recv: Finished! Recv: Mean: 2.454750 Min: 2.450 Max: 2.460 Range: 0.010 Recv: Standard Deviation: 0.003052 Results With 100Celcius Hotbed: Send: M105 Recv: Ok T:150.1 /150.0 B:101.5 /100.0 @:29 B@:127 M48 P10 X100 Y100 Recv: Mean: 1.705250 Min: 1.697 Max: 1.712 Range: 0.015 Recv: Standard Deviation: 0.004931 M48 P10 X50 Y50 Recv: Mean: 1.641500 Min: 1.635 Max: 1.647 Range: 0.012 Recv: Standard Deviation: 0.004213 M48 P10 X150 Y150 Recv: Mean: 1.637250 Min: 1.632 Max: 1.642 Range: 0.010 Recv: Standard Deviation: 0.004100 Edit 2018-11-13 If Plasic Dowels Are Broken ( That Happens To Me) Use Hot Glue To Fix The Plate
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