Hi thanks for the replies, I can get PLA to stick ok initially, it's stopping the
stuff lifting mid print (even with brims) that’s the main problem.
Haven't tried hairspray with PLA yet, I was using Wilko's "Extra firm hold", didn't
work with ABS on its own, but I did find that I could get an extra days printing out
of tired kapton using hairspray on it. Will do a test with PLA today. Thanks for the
link, I will keep a look out for that brand and try it.
PVA (applied on 80 Degree C bed) , was experimenting with that yesterday (didn't
work on ABS at all when I tried before). I did manage to get a PLA print to stick
well yesterday (stacked cube test with no brim), problem is I can only get 1 print
out of it, after that everything lifts off after 4-5 layers. Tried fresh PVA solution
on top of old, no go. looks like I will have to clean the glass between each print,
which is ok on bigger prints, pain when doing small calibration/test pieces though.
Will do some more experimenting today.
PVA glue I've been using is Everbuild "Universal PVA Bond"
[www.bicester-upvcdirect.com]
From what I've seen, a lot of people reporting success using PVA are using Elmer's
"Glue all" with heated bed, I haven't bought any to test because my main focus for
PLA will be cold bed printing ready for the 3DR.
Print stick, (Wilko's "Quick Stick Glue" not UHU there wasn't any in the shops)
again I tried that with ABS, it didn’t work (I did put it on top of PVA, which stuck
an ABS print, but there was fizzing going on where plastic meets print stick/PVA ,
so I didn’t pursue it lol) Will try it with PLA today (on clean glass)
Lemon Juice ("Tesco" bottle of, applied at 80C bed).
So far this as worked the most consistently (printed top and bottom 3DR centre
boss pieces ok on it, took a 7.5mm brim to do it though, Top cover cap started to
lift 30% way in with 7.5mm brim, will try 10mm when I try next (brims are getting
excessive now). Lemon Juice also seems to keep working, just reapply a few drops
between prints ay 80C and "stipple" it in. Stays sticky when cold though, makes bit
of a mess ( I imagine sugared water is similar, haven’t tried it yet).
Haven't really tried PLA on heated Kapton yet (I did but kapton was getting a bit
tired form ABS printing, that could be why it didn't work), 3M blue scotch should be
here in a few days, that will be my main focus for PLA , printing on a cold bed,
since that's what the 3DR uses.
I'll do some more experimenting today, see how that goes before attempting any of
those big top/bottom pieces again.
Cheers.
Edit : Forgot to add, that I've tried using a cooling fan (different speeds & distances etc) for PLA, just seems to make the lifting problem worse.
stuff lifting mid print (even with brims) that’s the main problem.
Haven't tried hairspray with PLA yet, I was using Wilko's "Extra firm hold", didn't
work with ABS on its own, but I did find that I could get an extra days printing out
of tired kapton using hairspray on it. Will do a test with PLA today. Thanks for the
link, I will keep a look out for that brand and try it.
PVA (applied on 80 Degree C bed) , was experimenting with that yesterday (didn't
work on ABS at all when I tried before). I did manage to get a PLA print to stick
well yesterday (stacked cube test with no brim), problem is I can only get 1 print
out of it, after that everything lifts off after 4-5 layers. Tried fresh PVA solution
on top of old, no go. looks like I will have to clean the glass between each print,
which is ok on bigger prints, pain when doing small calibration/test pieces though.
Will do some more experimenting today.
PVA glue I've been using is Everbuild "Universal PVA Bond"
[www.bicester-upvcdirect.com]
From what I've seen, a lot of people reporting success using PVA are using Elmer's
"Glue all" with heated bed, I haven't bought any to test because my main focus for
PLA will be cold bed printing ready for the 3DR.
Print stick, (Wilko's "Quick Stick Glue" not UHU there wasn't any in the shops)
again I tried that with ABS, it didn’t work (I did put it on top of PVA, which stuck
an ABS print, but there was fizzing going on where plastic meets print stick/PVA ,
so I didn’t pursue it lol) Will try it with PLA today (on clean glass)
Lemon Juice ("Tesco" bottle of, applied at 80C bed).
So far this as worked the most consistently (printed top and bottom 3DR centre
boss pieces ok on it, took a 7.5mm brim to do it though, Top cover cap started to
lift 30% way in with 7.5mm brim, will try 10mm when I try next (brims are getting
excessive now). Lemon Juice also seems to keep working, just reapply a few drops
between prints ay 80C and "stipple" it in. Stays sticky when cold though, makes bit
of a mess ( I imagine sugared water is similar, haven’t tried it yet).
Haven't really tried PLA on heated Kapton yet (I did but kapton was getting a bit
tired form ABS printing, that could be why it didn't work), 3M blue scotch should be
here in a few days, that will be my main focus for PLA , printing on a cold bed,
since that's what the 3DR uses.
I'll do some more experimenting today, see how that goes before attempting any of
those big top/bottom pieces again.
Cheers.
Edit : Forgot to add, that I've tried using a cooling fan (different speeds & distances etc) for PLA, just seems to make the lifting problem worse.