QiHe TVM925 Software issues?! - Page 1
Forum section: electronics / general

author: johnnyfp
author_rank: Frequent Contributor
timestamp: September 08, 2020, 01:11:40 am
content: Hi,Does anyone have or use a TVM925 made by QiHe but bought from RobotDigg?I have an issue that the Back HD lookup camera or the software that is using it is getting stuck in a loop trying to find an accurate position of a smaller part. It doesn't seem to happen on a larger 48pin QFN but something small, it would just sit there and hang bouncing around the zero position (Where zero is that it has centered the part).If you watch the attached video you can see it bouncing away, and is stuck like that forever (or until I get bored).Just can't seem to find a way to make this accurate. Any help would be appreciated.

author: 48X24X48X
author_rank: Frequent Contributor
timestamp: September 08, 2020, 04:26:29 am
content: Is there any reason for not using the smaller 4 camera? I believe they have different focal length and the big HD camera is best suited for larger components.

author: johnnyfp
author_rank: Frequent Contributor
timestamp: September 08, 2020, 04:33:05 am
content: The smaller camera's are for quick scan. To make roughly sure that the part is in the right orientation. It's not exactly high precision. I am currently using it for one of the parts but I have to manually fix around 50% of the placed parts as they are miss aligned once placed.The part does show up in the HD camera and is bound by a box, it just doesn't seem to want to settle down with finding the center.

author: qihe_kim
author_rank: Contributor
timestamp: September 08, 2020, 05:03:20 am
content: Hello sir,This is Kim from Qihe.Did you try to adjust the threshold of the component?And what is the version of the software you are using now?Maybe using the latest version software will slove this problem.

author: johnnyfp
author_rank: Frequent Contributor
timestamp: September 08, 2020, 11:54:55 pm
content: I am on Version 1.34I have set the thresholds to 20/40/60/80.I also tried to changed the HD Delay settings in advance both before and after but this also did not help.Any other Ideas?

author: qihe_kim
author_rank: Contributor
timestamp: September 09, 2020, 08:41:01 am
content: Hi sir,You can try to adjust the high of the component.

author: qihe_kim
author_rank: Contributor
timestamp: September 10, 2020, 06:53:07 am
content: Quote from: qihe_kim on September 09, 2020, 08:41:01 amBecause the height of different components is different, but if nozzle go down to the same height, the camera focal length is incorrect. You can modify the nozzle go down height by modifying the height of the component.

author: devonnije
author_rank: Contributor
timestamp: February 10, 2021, 10:16:14 am
content: Posting on this thread in the hope that it'll get picked-up by Qihe, and/or TVM925 users.Got a TVM926 with s/w V1.34. Can't imagine that there's much material difference between software on 925 and 926?All sorts of grief, funny things in manual, unsolicited (unexpected) X limit errors etc. Manual Z up and down actually does what ever it likes on the head selected - or one of the others!Videos athttps://youtu.be/B50mphrpAecandhttps://youtu.be/N_eW-1gEIoMAppears to behave in Auto, but I get X limit errors when changing speed on the fly.Not started to place components in anger; at this stage just looking for confidence that the machine will do the good thing.Any help/comments appreciated .... I get the feeling I need a later (or prior!) version of the code.Buddy has TVM925 running V1.19, and that puts-out the Feeder data within QHD files, whereas V1.35 doesn't (which I don't think is "ideal"). Corrected s/w Ver to 1.34

author: 48X24X48X
author_rank: Frequent Contributor
timestamp: February 10, 2021, 12:21:25 pm
content: Quote from: devonnije on February 10, 2021, 10:16:14 amHoliday in China is officially starting in a day's time with many already went back home town. I guess any support will be rare for now. But Kim as the QiHe owner might be able to help.

author: devonnije
author_rank: Contributor
timestamp: February 11, 2021, 09:51:10 am
content: Indeed, we are at a standstill waiting for PCBs that are caught-up in the perfect storm of Brexit + CNY.New issue with machine today ... no coms with controller card (done over ethernet) ... went away once machine/workshop warmed-up. Me thinks the X errors I got before could well be coms.The Z behaviour is down to poor control of the Z motors when in manual. Hard drive against the stops looses detent etc, and springs take-over .... plus not homed-to-opto on Z-up.Z behaviour in manual .......https://youtu.be/NdJILykBcLoI guess Kim will be along soon. I like the machine, mechanically its great.

author: devonnije
author_rank: Contributor
timestamp: February 21, 2021, 11:36:44 am
content: Update on all my issues1) X axis solved - dodgy crimp on Opto wire at carriage end. More on this another time.2) Saving feeder data .... button in the software - Duh!3) Z axis - Fine in normal operation, bad in manual and depth setting ... hopeful that they'll issue a software update (I hope it's in the PC code and not their controller)It's still early days, but the machine runs OK at 120% on a substantial timber stand on a 1st floor of engineered "I joist" floor (location is above a supporting wall).Have written scripts to process CAD data (OrCAD386 !!) into QHD files. Saves a fair bit of job set-up time.Next job ..... Puhui drawer oven ... modify or discard ... and ... KiCAD or DipTrace to replace OrCAD/386 (I'm being dragged to this, OrCAD does all i actually need to do)