Search found 139 matches

by mawa
Wed Sep 02, 2015 1:05 pm
Forum: Everything else
Topic: DIY TinyG controller
Replies: 11
Views: 14991

Re: DIY TinyG controller

@ wayoutwest: If you take a closer look into TinyG, what makes it so much better than other stepper driver boards is the control strategy which kind of "looks into the future" that is into a buffered set of XYZA movements and tries to control the involved axes at their best. That only work...
by mawa
Thu Aug 27, 2015 8:14 pm
Forum: Ideas and Feature Requests
Topic: Upgraded mechanics
Replies: 33
Views: 56294

Re: Upgraded mechanics

Visionbot is aiming at a ~3000-4000 euro price-point which is ok. But is as far as i can see not open source and the mechanics are kinda fiddly. This seems a nice middle way which can be done for about 1000-1500 euro. That guy is a young science project competition winner from Romania. And he expre...
by mawa
Thu Aug 13, 2015 12:13 pm
Forum: Building the LitePlacer
Topic: Pickup Tube
Replies: 3
Views: 3530

Re: Pickup Tube

by mawa
Mon Aug 03, 2015 4:49 pm
Forum: LitePlacer Software
Topic: Why is Z = 0 not = table?
Replies: 2
Views: 2087

Re: Why is Z = 0 not = table?

Ok from the mechanical standpoint. But after calibrating the needle height I would prefer the think in "distance from the table".
by mawa
Fri Jul 31, 2015 7:29 pm
Forum: Using the LitePlacer
Topic: How to improve up cam image contrast
Replies: 3
Views: 3194

Re: How to improve up cam image contrast

Covert wrote:Doesn't the CameraExposure Filter in Rezas version override this ? The main reason I changed to his version.
Either I did not set the right values or my USB cam does not react.

How are the parameters for exposure ? Because Brightness just make the image gray / dimm.
by mawa
Fri Jul 31, 2015 6:12 pm
Forum: LitePlacer Software
Topic: Why is Z = 0 not = table?
Replies: 2
Views: 2087

Why is Z = 0 not = table?

Trying to test Z axis preset value like table, PCB, Focus I came to the question why the LitePlacer homes Z at the top most position and not at the table level? As most Z measures are relative to the table e.g. PCB Height = Table height(0) + PCB Thickness, Tape Pickup height = Table Height(0) + Tape...
by mawa
Fri Jul 31, 2015 7:59 am
Forum: Ideas and Feature Requests
Topic: part pickup detection
Replies: 9
Views: 7623

Re: part pickup detection

Using a vacuum feedback is certainly the best approach. But I hesitate to alter the TinyG hard- and firmware as Reza did. Using arduinos of all sizes I tend to add an arduino micro/nano to fullfill this and some more tasks, like switching the LEDs and also the pump and solenoid. The pump workaround ...
by mawa
Fri Jul 31, 2015 7:45 am
Forum: Pre-Sales Questions
Topic: Placement of integrated circuits
Replies: 39
Views: 46435

Re: Placement of integrated circuits

In many occassions the image ist zoomed. So using a higher res cam could give an improved zoom result. But due to the fact that the zoom is not done by the camera but is applied to the full scale image by software. The image processing load rises by the product delta of the X Y image pixel count. If...
by mawa
Mon Jul 27, 2015 8:18 am
Forum: Using the LitePlacer
Topic: How to improve up cam image contrast
Replies: 3
Views: 3194

How to improve up cam image contrast

I had difficulties to get the up cam needle recognition work properly. My image looked similar to Juhas image in his instructions. http://www.liteplacer.com/setup-uplooking-camera-processing/ The black needle shade was more a medium gray than a dark or black gray. With the result that the surface wa...
by mawa
Sun Jul 26, 2015 8:33 am
Forum: LitePlacer Software
Topic: LitePlacer-rmod Updates
Replies: 159
Views: 205532

Re: LitePlacer-rmod Updates

Rezas SVN solution contains an Aforge Directshow project.
Although the VS dependencies between that project and the liteplacer project are set I had to build this project manually. (Don't forget a Clean before issuing a rebuild)
Then the liteplacer project could be built without errors.