#robotics Logs

Mar 13 2018

12:16 AM rue_: well, all attempts at printing abs failed,and in the end, the glass table broke from the thermal stress
01:06 AM mrdata: oh my
01:06 AM mrdata: how thick was the glass?
01:07 AM mrdata: you'll have to use thinner glass and heat or cool the table more slowly
01:07 AM mrdata: or use borosilicate
05:11 AM Jak_o_Shadows: I suppose it's very early spring there?
07:50 AM AchiestDragon: from what i read in the devo delta group you need to make an enclosuer for the printer ie some side pannels to print abs properly so the heat of the bed does not draw cold air in from arround it as much to stop the prints lifting , and keeps the whole print aria a more stable temp
07:52 AM veverak: yep
07:53 AM veverak: it's what I am using
07:53 AM AchiestDragon: rue_: that also stops it seperating when theres a thermal change in the room that brings a fresh influx of cool air , like when you open a door , i dont print abs mainly because the fumes are toxic not to mention the above mentioned problems
07:53 AM veverak: with carbon plate as printing surface (works better than glass)
07:53 AM veverak: AchiestDragon: fumes can be filtered reasonably
07:54 AM AchiestDragon: actualy the dam tevo bed stickers that are a pain with pla as the prints stick to them too well , are better suited for abs and do work well aparantly
07:55 AM veverak: I have industry filter of small particles in the printer box and it filters most of the stuff
07:55 AM veverak: and afaik, the amount of the particles from abs 3d printing is problem, you can safely inhole low dose
07:58 AM AchiestDragon: yea , although on the delta for making an enclosure you can use some thick asitate sheets with a bit of tape for the bottom and top and slot them into the rails to make a simple enclosure , if you dont want to go to acrilic/perspex and bent to fit
08:00 AM AchiestDragon: i have 2 rolls of abs that where supplied in error , but no plans to use them yet , pla does what i need
08:02 AM AchiestDragon: printing robot mk6 atm , printers going to be running all month
08:10 AM AchiestDragon: https://github.com/achiestdragon/leggie/blob/master/scad_parts_dc_motor_version/upper_leg_assembled.png 56hrs 63 mins to print the leg frames for all 6 legs (the blue bit on the image )
08:11 AM AchiestDragon: each is in 2 halves mounted back to back on print 11 of 12 atm
08:12 AM AchiestDragon: and second roll of filament
08:30 AM rue_bed: yea, ditto
08:30 AM rue_bed: trying to get the abs to work, its not
08:32 AM rue_bed: the rolls I have were oops'
09:25 AM rue_: one thing I see, it looks like using small nozzels with ABS is a bad idea
09:26 AM rue_: sensitivity to air temp changes sucks
09:26 AM rue_: I can see that having a machine that uses the bed for Z and does the nozzel as XY is better for abs
09:38 AM z64555: rue_ may I have the link to your servo study again? I had bookmarked it but can't seem to find it
07:37 PM rue_: part 1, the basics, or part two, the advanced stuff
09:01 PM z64555: the advanced stuff, sorry
09:18 PM rue_bed: http://ruemohr.org/%7Eircjunk/tutorials/elex/hobbyservo2/
09:18 PM rue_bed: hmm it looks like I took pics but didn't write it
09:18 PM rue_bed: http://ruemohr.org/%7Eircjunk/tutorials/elex/hobbyservo/servo101.html
09:19 PM rue_bed: so you probably want that
09:30 PM z64555: could've sworn you wrote something?
09:31 PM z64555: but thanks, at any rate
09:31 PM rue_bed: that was what I wrote
09:31 PM rue_bed: that which is written
09:32 PM z64555: well I meant for part 2
09:34 PM rue_bed: do you remmeber what part 2 covers?
09:34 PM rue_bed: (I know, I want to know if you do)
09:36 PM z64555: sadly no, the second image in your ftp seems to suggest some sort of force feedback system with them
09:36 PM z64555: or I might be remembering something else entirely
09:37 PM rue_bed: part 2 was force feedback
10:14 PM id4rk_ is now known as id4rk
10:43 PM rue_: is FF what you were looking for?