Prototype goals :I have been watching the google groups delta 3d printer forum for a few weeks.340mm plate, 100mm Z max height, MGR12 bearings, Magnetic ball 440mm long arms,2020 with metal cornersJust getting parts so far.....build in March...Delta with its natural Z movements should be a killer. I think Firepick has a working one.Certainly for large build area and from feeders and HEAVY head, ball screw cartesian is the way to gowith CoreXY as a close 2nd for lightweight heads
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/0395ceb4-10c6-47ce-98b1-e3a747c5264c%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/a0ea965f-ad52-4bfb-80a7-cd90566a3703%40googlegroups.com.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/d0aa753d-3464-4a69-a909-0a87d95033e5%40googlegroups.com.
Jason, today i have tested the wasp 40/70 printer because i have retired some 3d stamping and have asked if i could test 5min the accuracy with Webcam. The error was in the order of 1.3pixel 0.037mm always +-, 80 microns error.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/a908114b-fe9b-4b0c-8e44-0f6edba61670%40googlegroups.com.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/066c5ecd-1d9b-4039-a75c-b1b6c6be74ad%40googlegroups.com.
Hi Glen,
Very nice! Do you know how they do bed leveling? It looks like they touch the nozzle to the glass bed, so it's not conductive. Stepper feedback? Or something in the head?Jason
On Fri, Feb 10, 2017 at 12:30 PM Cri S <phon...@gmail.com> wrote:
Check out this Video, https://m.youtube.com/watch?v=uG-yoiFV85c
The Motors are ON top hidden, open loop steppers and same pulley AS you See ON Video. Spool is on top on center of the motors. Everything igus. Lot of resolution, only moderate angled on joints.
I have seen delta for PNP for th connectors, because delta can vibrate a lot better as scara resulting 5 time faster. The drawback is that two delta and one rotation table is needed for loading connectors from tray and placing to PCB where scars robots can do both task because of larger workspace.
Beside odd size the connectors and condensators I don't have seen application for delta on pnp,.
There is one emerging , hand soldering, because it can be reached with inverse delta and this make it very flexible, that yes.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+unsubscribe@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/066c5ecd-1d9b-4039-a75c-b1b6c6be74ad%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+unsubscribe@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/CA%2BQw0jzJJ-K_-B-aEQ0_jbbauTM-kr8rsXzVNDfU6L32VL%3D0qQ%40mail.gmail.com.
I have found that here is much to be learned by just listening at the group :
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+unsubscribe@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/85e87503-946f-4b4a-b961-7de627578b1f%40googlegroups.com.
Trampas
Misfittech.net
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/a715d84a-2396-4202-b685-39e8306a94c0%40googlegroups.com.
You received this message because you are subscribed to a topic in the Google Groups "OpenPnP" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/openpnp/5koTWtJalXQ/unsubscribe.
To unsubscribe from this group and all its topics, send an email to openpnp+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/CA%2BQw0jwDRfiROXSEOkzYqBBKsGNc9teg4gGnBkrJRUF6Z0un4g%40mail.gmail.com.
You received this message because you are subscribed to a topic in the Google Groups "OpenPnP" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/openpnp/5koTWtJalXQ/unsubscribe.
To unsubscribe from this group and all its topics, send an email to openpnp+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/CA%2BQw0jwDRfiROXSEOkzYqBBKsGNc9teg4gGnBkrJRUF6Z0un4g%40mail.gmail.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/9D6481B5-01CD-4D01-A174-5B697BBBB94C%40gmail.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/CA%2BQw0jy-34aoyRfB5VXwb6AGq1JwTwQ13%2BF2eqwtQn%2BA-ur7Og%40mail.gmail.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/9dda2d14-ca90-460c-b3ba-ca71d6ea0418%40googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/5068F715-8DD4-4ECA-AE63-40B5F98E244C%40pearless.co.nz.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/97f5265e-df2d-4135-99b7-ac1fa218932c%40googlegroups.com.
--
You received this message because you are subscribed to the Google Groups "OpenPnP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/63033eeb-9572-42d5-aa34-58be42a7ebcf%40googlegroups.com.
You received this message because you are subscribed to a topic in the Google Groups "OpenPnP" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/openpnp/5koTWtJalXQ/unsubscribe.
To unsubscribe from this group and all its topics, send an email to openpnp+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/CA%2BKNHNzaA4q5t2oRkQa%3D5dnh5Menee_xTYQyOPNrsnNAOnk1Gg%40mail.gmail.com.
--
You received this message because you are subscribed to a topic in the Google Groups "OpenPnP" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/openpnp/5koTWtJalXQ/unsubscribe.
To unsubscribe from this group and all its topics, send an email to openpnp+u...@googlegroups.com.
To post to this group, send email to ope...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/63033eeb-9572-42d5-aa34-58be42a7ebcf%40googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/B85C4F77-16B6-4EE3-9D88-56EF7A116AF4%40gmail.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/openpnp/9796c1cc-3732-4d53-91ce-1e82a63b83d3%40googlegroups.com.
Hi Luiz,Very interesting work! Probably a bit beyond me, to be honest. :)
Before I comment further, I want to clarify that the error I am most concerned with is X/Y, not Z. Z is, of course, important too, but my goal was to get X/Y to be "close" when I was working on the project.With that said, when I was working on this project my only goal was to be able to place parts reliably. We eventually settled on trying to create a grid points using computer vision and a large calibration PCB and then using barycentric interpolation to try to be more accurate. I believe Karl Lew is the person who suggested barycentric interpolation.What I found was that if I ran through calibration and then applied my interpolation, and then used OpenPnP to try to go to positions defined on another PCB, I was often off by as much as 0.5mm. This was better than without interpolation. I forget how much further it was off, but I do remember the interpolation helped.I did my tests by mounting a camera on the end effector, commanding OpenPnP to go to a particular position on the PCB and then using relative coordinates to measure how far from that position I ended up. I verified that things were "working" by telling it to go to the grid points on the calibration PCB and those would line up quite accurately.