Re: At my wits end with PETG March 17, 2016 05:21AM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 17, 2016 09:26AM |
Registered: 8 years ago Posts: 319 |
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amigob
I have a E3D V6 and by accident I was printing at 275c ( now 245c, and first layer 255c) . I didn't look at the PTFE tubing yet but it is still printing very well.
I am building a smaller lighter wade's like extruder so this weekend I will see how the PTFE looks like.
Re: At my wits end with PETG March 17, 2016 12:48PM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 17, 2016 04:27PM |
Registered: 9 years ago Posts: 1,873 |
Re: At my wits end with PETG March 20, 2016 08:46AM |
Registered: 8 years ago Posts: 155 |
Re: At my wits end with PETG March 21, 2016 09:15AM |
Registered: 8 years ago Posts: 319 |
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JamesK
The v6 only brings the ptfe to above the level of the heatsink. As long as the fan is running temperatures up there should be fine. The v6-lite takes the ptfe all the way to the nozzle junction and it will be subject to much higher temperatures. Like the one I was using.
Re: At my wits end with PETG March 25, 2016 05:02PM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 25, 2016 06:51PM |
Registered: 8 years ago Posts: 319 |
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amigob
I found a good solution for me for the first layer of PETG
- every thing sticks direly to the bed
- no strings any more on the first layer
- sticks very well
after cool down ( used 90 degrees bed )
first experience removing the finished product, couldn't get it loss :-{ even not with a pliers.
But lifting the brim with a knife and plop it was loss :-)
[attachment 75329 WP_20160325_005.jpg]
I sprayed the glass plate with 3DLAC spray
one disadvantage , cleaning the glass plate is messy.
Re: At my wits end with PETG March 26, 2016 04:22AM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 26, 2016 09:00AM |
Registered: 8 years ago Posts: 319 |
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amigob
I tried everything ( different heights, different temperatures ( PETG and bed ), different flow rates ), to get the PETG stick to the glass but it just didn't.
And really it doesn't stick at all.
So I gave up on that, I printed the x carrier, again last night, and really with the pray, it sticks extreme, and lifting the brim after cooldown pop and it is of.
I am so confident in this solution that I am going to try ABS now.
Re: At my wits end with PETG March 26, 2016 04:48PM |
Registered: 10 years ago Posts: 154 |
Re: At my wits end with PETG March 26, 2016 05:36PM |
Registered: 8 years ago Posts: 319 |
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MrBaz
Using MakerGeeks PETG
60*C bed
250*C hotend
I have verified my temps with an IR temp gun - max 3* deviation.
Sticks just fine to clean glass mirror. I have to pry up the corners a little and work around the edges of large surface area prints with a razor blade to get them to loosen. Nothing worrisome so far.
Re: At my wits end with PETG March 26, 2016 05:46PM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 26, 2016 07:25PM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 28, 2016 11:23AM |
Registered: 8 years ago Posts: 260 |
Re: At my wits end with PETG March 31, 2016 11:17AM |
Registered: 8 years ago Posts: 319 |
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amigob
I constanly see that at the beginning and and if an extruded line I have to much filament.
So I was wondering are extruded amounts synced with the movement acceleration ?
So not only with speed.
Or should I match these movement accelerations with extrusion acceleration my self ?
I use Repetier
Re: At my wits end with PETG April 02, 2016 12:00PM |
Registered: 8 years ago Posts: 319 |
Re: At my wits end with PETG April 02, 2016 12:10PM |
Registered: 9 years ago Posts: 1,873 |
Re: At my wits end with PETG April 02, 2016 02:54PM |
Registered: 8 years ago Posts: 319 |
Re: At my wits end with PETG April 02, 2016 02:58PM |
Registered: 9 years ago Posts: 1,873 |
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DRTak
How did you verify that your thermistor was the correct temp? I cannot figure out how? Do you aim the IR thermometer at the heatbreak?
Re: At my wits end with PETG April 09, 2016 05:26PM |
Registered: 8 years ago Posts: 319 |
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JamesK
Quote
DRTak
How did you verify that your thermistor was the correct temp? I cannot figure out how? Do you aim the IR thermometer at the heatbreak?
I compared the thermistor readings against the K-type thermometer. I'm assuming that the K-type performs according to spec, which may be a bit of a leap, but what can you do. The hotend is too small to get reliable readings with the IR thermometer. The comparison I did was on the top surface of the glass bed, comparing the IR against the reading from the K-type. The IR thermometer appears to be the least reliable, but it's quick and convenient and gives ballpark measurements for motors and electronics.