D'oh, I hate the way they provide links.
http://s885.photobucket.com/albums/ac59/coasterman1/3D%20Printer/?action=view¤t=2011-04-1400-20-22168.jpg#!oZZ2QQcurrentZZhttp%3A%2F%2Fs885.photobucket.com%2Falbums%2Fac59%2Fcoasterman1%2F3D%2520Printer%2F%3Faction%3Dview%26current%3D2011-04-1400-20-19721-1.jpg
On Apr 14, 12:24 am, coasterman <coaster...@live.com> wrote:
> One pic:http://i885.photobucket.com/albums/ac59/coasterman1/3D%20Printer/2011...
> more available there if you go through a few pics.
>
> On Apr 14, 12:09 am, coasterman <coaster...@live.com> wrote:
>
>
>
>
>
>
>
> > I've recently gotten the HBP for my Cupcake CNC and have had a few
> > issues with warping, but now it is becoming quite an annoying problem.
>
> > I run it at 110 degrees Celsius with blue painter's tape on it, and I
> > use ABS plastic.
>
> > Basically, my parts are warping as if I were printing onto non-heated
> > acrylic. This is getting quite annoying because I have some prints to
> > do and warping is the last thing I want to worry about. I've been
> > leaving this alone for some time but I get mad when I see beautiful
> > prints from other people and then I look at my printer and its warped
> > parts.
>
> > I tried as much as I could to fix this (different temps, different
> > surfaces, etc) but nothing has gotten better.
>
> > I used to use kapton on it, and then I sanded it as I read that
> > sanding "improves adhesion". In my case. it did the opposite and made
> > the kapton worthless, even though I used the suggested 220 grit and
> > rubbed it down with isopropyl alcohol. It works great with PLA, but it
> > doesn't work well for ABS.
>
> > Any ideas on how to fix this?
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*shrug* It works for me. I've tried lots of different temps, and to
make things stick I keep the Kapton clean with Acetone and go up to
140. I think Nophead does it similarly but he prints on PET.
O.
Sorry to say, sanding does appear to do more harm than good. Replace
with fresh kapton tape at your earliest convenience
Check for drafts through your bot. Try creating a "makerbot tent" by
taping a piece of paper to one or more of the openings. I generally
tape the back and if its particularly cold the side opening as well.
Do check and ensure that your HBP is perfectly level. If it's off by
more than half a layer height (~0.2 mm) you can get a situation where
one area prints beautifully and other areas are extruding into thin
air on the first layer; alternatively it could require you to squish
parts of the platform more than strictly necessary (which causes it's
own issues)
I know, you hate rafts. So do I. Try one anyways, sometimes they
help. Generally with a well-tuned HBP, you're going to get better
results raftless anyways (warping and curling can still happen with a
raft even on an HBP) - but YMMV depending on the bot and the object
you're trying to print
Try mouse ears:
blog.makerbot.com/2011/02/25/mouse-ears-defeat-corner-curling-monster/
me to. it prints so well on it that ive broken parts trying to get it off.
Maybe your Thermistor is off and you need to up the temp. And it sounds like people in the thread like unsanded kapton, so maybe you should replace that.
My HBP uses the original Kapton film that came wit it. Unsanded.
HTH,
O.
On Apr 14, 2011, at 12:09 AM, coasterman wrote:
> I've recently gotten the HBP for my Cupcake CNC and have had a few
> issues with warping, but now it is becoming quite an annoying problem.
>
> I run it at 110 degrees Celsius with blue painter's tape on it, and I
> use ABS plastic.
>
> Basically, my parts are warping as if I were printing onto non-heated
> acrylic. This is getting quite annoying because I have some prints to
> do and warping is the last thing I want to worry about. I've been
> leaving this alone for some time but I get mad when I see beautiful
> prints from other people and then I look at my printer and its warped
> parts.
>
> I tried as much as I could to fix this (different temps, different
> surfaces, etc) but nothing has gotten better.
>
> I used to use kapton on it, and then I sanded it as I read that
> sanding "improves adhesion". In my case. it did the opposite and made
> the kapton worthless, even though I used the suggested 220 grit and
> rubbed it down with isopropyl alcohol. It works great with PLA, but it
> doesn't work well for ABS.
>
> Any ideas on how to fix this?
>
-----Original Message-----
From: coasterman <coast...@live.com>
Sent: Thursday, April 14, 2011 12:25 AM
To: MakerBot Operators <make...@googlegroups.com>
Subject: [MakerBot] Re: HBP Warping
D'oh, I hate the way they provide links.
http://s885.photobucket.com/albums/ac59/coasterman1/3D%20Printer/?action=view¤t=2011-04-1400-20-22168.jpg#!oZZ2QQcurrentZZhttp%3A%2F%2Fs885.photobucket.com%2Falbums%2Fac59%2Fcoasterman1%2F3D%2520Printer%2F%3Faction%3Dview%26current%3D2011-04-1400-20-19721-1.jpg
On Apr 14, 12:24 am, coasterman <coaster...@live.com> wrote:
> One pic:http://i885.photobucket.com/albums/ac59/coasterman1/3D%20Printer/2011...
> more available there if you go through a few pics.
>
> On Apr 14, 12:09 am, coasterman <coaster...@live.com> wrote:
>
>
>
>
>
>
>
> > I've recently gotten the HBP for my Cupcake CNC and have had a few
> > issues with warping, but now it is becoming quite an annoying problem.
>
> > I run it at 110 degrees Celsius with blue painter's tape on it, and I
> > use ABS plastic.
>
> > Basically, my parts are warping as if I were printing onto non-heated
> > acrylic. This is getting quite annoying because I have some prints to
> > do and warping is the last thing I want to worry about. I've been
> > leaving this alone for some time but I get mad when I see beautiful
> > prints from other people and then I look at my printer and its warped
> > parts.
>
> > I tried as much as I could to fix this (different temps, different
> > surfaces, etc) but nothing has gotten better.
>
> > I used to use kapton on it, and then I sanded it as I read that
> > sanding "improves adhesion". In my case. it did the opposite and made
> > the kapton worthless, even though I used the suggested 220 grit and
> > rubbed it down with isopropyl alcohol. It works great with PLA, but it
> > doesn't work well for ABS.
>
> > Any ideas on how to fix this?
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[The entire original message is not included]
Try mouse ears:
blog.makerbot.com/2011/02/25/mouse-ears-defeat-corner-curling-monster/
--
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