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Added Hardware Documentation
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pkrush committed Aug 24, 2015
1 parent 0056d5e commit a29cac3
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2 changes: 1 addition & 1 deletion CanonSDKTutorial-noexe/WinFormsUI/MainForm.cs
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Expand Up @@ -18,7 +18,7 @@ public partial class MainForm : Form
List<int> ISOList;
List<Camera> CamList;
Bitmap Evf_Bmp;
int LVBw, LVBh, w, h, imageID = 100 * 1070000;
int LVBw, LVBh, w, h, imageID = 100 * 1080000;
DateTime lastImageTime = DateTime.Now;
float LVBratio, LVration;
Images images = new Images();
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2 changes: 1 addition & 1 deletion CoinSorter/Coin.vb
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Expand Up @@ -119,7 +119,7 @@ Public Class Coin
'If Coins(coinID).Type = "tails" And Coins(coinID).TypeStrength > 80 Then

'Sort out Lincoln memorials:
If Coins(coinID).Type = "tails" Then
If Coins(coinID).Type = "1982D" Or Coins(coinID).Type = "1982P" Then
PowerSupply.ToggleSolenoid(Coins(coinID).CaptureTime, Coins(coinID).HorizontalCenter)
End If
End Using
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2 changes: 1 addition & 1 deletion CoinSorter/CoinTracker.vb
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Expand Up @@ -10,7 +10,7 @@ Module CoinTracker
Public MsCoinsAreInView As Double = 10000
Public ImageWidth As Int32 = 960
Public DigitsIPAddress As String = "54.144.148.83"
Public DigitsJobID As String = "20150818-221113-b8aa" '5 Types AlexNet 256x256
Public DigitsJobID As String = "20150820-222359-cd38"

Public CurrentDirectory As String = "C:\Temp\TempCoinImages\"
Public ArchivedDirectory As String = "F:\liveview\"
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46 changes: 46 additions & 0 deletions hardware/conveyors/Conveyors.md
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Three type of conveyor ends have been used successfully:
Motor end in ¾” MDF
Pulley end in ¾ MDF
Pulley end in ¼ MDF

These pulleys built from ¾” frames have turned out way better than I thought they would. I first used 1mm thick belting at 100RP; this was a bit under powered. All the power is used to move the thick belts. It would move a full gallon of milk with no issues.

With the 0.15mm thick belting that is currently be used the motors can be smaller, especially if you put in ball bearings.

Motor end in ¾” MDF Parts:
25MM Gear motor, 4mm shaft 100-1000RPM
2 motor mount screws: M3-0.5 6 mm screws
3D printed gearbox bracket
3D printed D-coupling to take motor 4mm ID “D” to ¼” OD
Coupling: Polyurethane Tubing, ½” OD, ¼” ID.
Coupling: Zip/cable Ties: 4”
75mm long ¼” steel shaft
35 mm long 3D printed pulley. 22mm diameter.
Drilled with “D”0.246” drill to press fit on ¼” shaft
2 3D printed Pulley Holders.
2 Bushings: stock nylon shoulder spacers ½” Long, ¼” ID, 5/16” ID, ½” ID Flange
3 8” zip/cable ties hold on the gearbox bracket & pulley holders

Pulley end in ¾ MDF
Same as motor side, except 60mm long shaft.


Pulley end in ¼” MDF:
Pulley end ¼” is 60mm wide
1/8” steel shaft, 60mm long
4 ¼” diameter nylon spacers, 1/8” hole, ½” long, Center spacer has tape to make it crown.
Wood is cutout for the pulleys
Remaining wood is drilled 1/8”
It’s pretty crude and fragile, but once it starts working I have yet to see fail.
It’s easy to drill so the shaft is not straight. Then the belt walks to one side.

Conveyor Belt:
30mm wide, 0.15mm thick Polyurethane
Normally used for sealing fabric together, under garment strapping, etc.
Sold as “TPU Tape” on Aliexpress.com
Length wise sized 5% under
Bonded together with a standard impulse heat sealer used for sealing poly plastic bags.


Speed Controllers:
The first proof of concept had 24V power stepped down to 5 to 18 volts for the 12V motors with DC-DC LM2596 modules. This are really common, $1-2 on eBay, Amazon, etc. The system moving coins with motors running at 5-7 volts is surprisingly quiet with the coin hopper turned off.
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