WATCH THIS!
Originally shared by René Jurack
I almost fell off the chair watching this…
https://www.youtube.com/attribution_link?a=gfVrzYWt3Ic&u=/watch?v%3DYf409S8iV68%26feature%3Dshare
Want!
About $5k.
Wonder is closed loop on all directions or just X
Go to
https://www.google.com/url?q=http://aaronlouistech.com/&usg=AFQjCNEdcxEA8jo6ZM7QjSpj-aXB_fE2sQ
@Scott_Lewis invalid link is all I get
Sorry if it’s not working, I’m using my smartphone to type.
And their closed loop printers are closer to $6k
Check out @Heath_Harper 's work at ReliaBuild 3D printers (formerly known as RigidBot).
@Jayson_Kelly and @Jeff_Parish is there a difference here between what they are doing and Skip Sense at ReliaBuild3d.com?
Did a 2 min Google search on this and came up with the following adaption. Uses DC motors, encoders, and an arduino for closed loop. Demo video on the page is of an i3.
Have you seen Mechaduino ? In this video they demonstrate the same control on a Prusa i3 “style” printer Closed Loop 3D printer w/ Mechaduino - YouTube
https://www.kickstarter.com/projects/tropicallabs/mechaduino-powerful-open-source-industrial-servo-m
@Heath_Harper Same over all result but seems to be implemented in a different way.
Only issue with monitoring only motor end is it does not consider belt skip or drive slips. Best is to put position sensor direct on what you are measuring. Like on Bridgeport we have DRM that uses optical encoders mounted to bed to measure movement. All systems will have their issues it is best to consider all
Aspects of error or failure to ensure continues operation with no error.
@Peter_Hanse The Skip-sense system mentioned above has the encoders on a separate mounting from the belts and motors for just that reason. Motor skips are not the only possible source of position error.
Shame it’s just a Kickstarter teaser. Pay now, get it a year or two late if it doesn’t do a Tiko, Peachy, etc.
http://ustepper.com has this. I backed them and never did anything with them. The cost of closed loop is tough to justify but needed for pro machines I think
Brook
@Adam_Steinmark I tested misan’s closed loop code a couple years ago. Worked pretty good but never used it for a project. I use mostly industrial servo drivers.
Thanks for all the comments and to hopefully help clarify few items - our system is based on an all metal design with high-torque dual extruders that also include closed loop motor control on all axis. Our all-metal extruders are able to reach 315 deg. c. (Standard) and 400 deg. c. (High Temp) while our all-aluminium removable hotbed is also capable of reaching 300 deg. c. All versions use common open-source controller software and the base model includes a 12" X 12" X 12" build volume. Again, thanks for checking out our site and for even commenting. We are committed to delivering affordable closed-loop 3D printers. Please stay tuned.