Search found 407 matches
- Mon May 11, 2015 1:55 pm
- Forum: Building the LitePlacer
- Topic: Better Downward Camea
- Replies: 65
- Views: 107244
Re: Better Downward Camea
As promised, I have attached a few pictures to illustrate image quality of my LitePlacer's enhanced vision system. The chip shown in the image is in a TQFP 44 package with 0.8mm / 31 mil pitch, the PCB has corresponding pads. The images are screencaptures from LitePlacer UI in original resolution. I...
- Thu May 07, 2015 11:32 pm
- Forum: Building the LitePlacer
- Topic: Better Downward Camea
- Replies: 65
- Views: 107244
Re: Better Downward Camea
Hi Rinus, focus is often an issue, as most "webcams" and "pencams" are focussed for a fixed viewing distance that is farther away than just a few millimeters. Once you rip the PCB, CMOS and optics from their casing, you can often adjust the focus. With the endoscope cameras from ...
- Thu May 07, 2015 11:20 pm
- Forum: Building the LitePlacer
- Topic: Base and strip holder
- Replies: 6
- Views: 5324
Re: Base and strip holder
I modeled and 3D-printed the following tray tonight. It fits standard 8mm strips with height 1mm - so most passives such as resistors, capacitors, etc. I have cut out the hole locations from the top plate so that the downlooking camera can see the holes, thus I can use the LitePlacer software withou...
- Thu May 07, 2015 6:36 pm
- Forum: Building the LitePlacer
- Topic: Base and strip holder
- Replies: 6
- Views: 5324
Re: Base and strip holder
Hi Rinus, I have neither built nor used this strip "feeder", should probably call it "strip tray" or "component pod" as Peter suggested - I just found it on Felix's site a while ago and liked the idea. I think your remarks are spot on - here are my thoughts: > 1. Removi...
- Wed May 06, 2015 12:27 pm
- Forum: Building the LitePlacer
- Topic: Better Downward Camea
- Replies: 65
- Views: 107244
Re: Better Downward Camea
Hello, it is really interesting to see all these camera mods. I thought I'd join the discussion and share what I have built. I am using modified webcams and custom lighting for both up and downward vision. Basically, I stripped the PCB and optics from some webcams I had bought and put these into 3D ...
- Wed May 06, 2015 11:18 am
- Forum: Building the LitePlacer
- Topic: Base and strip holder
- Replies: 6
- Views: 5324
Re: Base and strip holder
Hi Peter, I chose a 22mm MDF (wood-based substrate) panel for my table - the material is commonly used to make furniture and should be available cut to size from many hardware stores at very resonable prices. To achieve the necessary rigidity, I have built a very solid base from 45x45mm alu extrusio...
- Mon Apr 27, 2015 11:51 am
- Forum: Building the LitePlacer
- Topic: Vacuum selonoid
- Replies: 3
- Views: 3460
Re: Vacuum selonoid
From my experience, the farther away you mount the valve, the more tube length ("capacity") is in between and as a result, latency increases. The effect is actually similar to trace capacitance in electronic circuits but much slower ;-) If you have the valve mounted to the table, not the h...