My First Experience with ABS: I Have a Problem
Posted by Garry Bartsch
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My First Experience with ABS: I Have a Problem June 17, 2014 08:02PM |
The Wade's block on my machine started cracking badly on either side of the bearing and a gap appeared above the bearing. I said to myself, "Garry, now you are going to learn how to print ABS." I had been putting off trying it for myriad reasons, not least of which was reading of all the problems people have with it. But I had no choice. To shorten the story, after a few half-hearted false starts with wrong temps (too low) and glass treatments (glue stick and Future Floor polish [which I will revisit because the result wasn't too bad]) I achieved a decent print.
I printed at 240C onto Kapton coated glass at 130C (for the whole print; I didn't alter the temps). The tape was wiped lightly with acetone soaked kitchen towel. The ABS was black from Botfeeder.ca. It's a respectable print with basically straight side except where the nozzle starts each layer. There is a bit of excess plastic there. Otherwise it's a pretty sweet part with awesome looking layer bonding. I think I over extruded slightly but that's OK for a third print.
I sliced it with Kisslicer.
Funnily, my wife with the nose of a bloodhound did not detect a bad odor from the printing plastic. Ditto for both kids. I let the print go for a while before asking them if the office smelled bad. I was dreading that they would not like me printing with ABS because of the smell but so far so good.
Anyway, I now have a nice new Wade's block. Yippee!
Oh yes, my problem. I can't get the part off the Kapton. It's stuck like crazy. I've been trying to pry it off with the same method I use successfully for PLA. Alas, no luck. After fighting I have the knife part way under one end. But I'm the crippled guy and can't exert much force. So I'll wait for help and try putting it in the freezer for a while. Who ever does help me remove it will be very careful and wear cut resistant gloves.
I think I need to find a way to make the part stick less well :-(.
I printed at 240C onto Kapton coated glass at 130C (for the whole print; I didn't alter the temps). The tape was wiped lightly with acetone soaked kitchen towel. The ABS was black from Botfeeder.ca. It's a respectable print with basically straight side except where the nozzle starts each layer. There is a bit of excess plastic there. Otherwise it's a pretty sweet part with awesome looking layer bonding. I think I over extruded slightly but that's OK for a third print.
I sliced it with Kisslicer.
Funnily, my wife with the nose of a bloodhound did not detect a bad odor from the printing plastic. Ditto for both kids. I let the print go for a while before asking them if the office smelled bad. I was dreading that they would not like me printing with ABS because of the smell but so far so good.
Anyway, I now have a nice new Wade's block. Yippee!
Oh yes, my problem. I can't get the part off the Kapton. It's stuck like crazy. I've been trying to pry it off with the same method I use successfully for PLA. Alas, no luck. After fighting I have the knife part way under one end. But I'm the crippled guy and can't exert much force. So I'll wait for help and try putting it in the freezer for a while. Who ever does help me remove it will be very careful and wear cut resistant gloves.
I think I need to find a way to make the part stick less well :-(.
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