Re: Folger Prusa i3 Kit from ebay October 13, 2014 11:06PM |
Registered: 9 years ago Posts: 58 |
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dooms101
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czmorris
goldenPSP, Don't get me wrong the machine works well. and it is certainly fun to tinker with.
I did a reprint of the elephant. Unfortunately I couldn't find my previous one to do a side by side comparison.
Looks good! I see you used a raft. I've never used one, I do use a brim on most prints. How hard is it to get the raft off?
Re: Folger Prusa i3 Kit from ebay October 14, 2014 02:37AM |
Registered: 9 years ago Posts: 36 |
Re: Folger Prusa i3 Kit from ebay October 14, 2014 06:24AM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay October 14, 2014 11:42AM |
Registered: 9 years ago Posts: 36 |
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Waltermixx
Blue painters tape is great for pla. Looks like you need to get your z axis closer to the build plate. You may need to adjust your z stop.
Re: Folger Prusa i3 Kit from ebay October 14, 2014 02:47PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay October 14, 2014 08:05PM |
Registered: 9 years ago Posts: 54 |
Re: Folger Prusa i3 Kit from ebay October 14, 2014 10:05PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay October 14, 2014 11:49PM |
Registered: 9 years ago Posts: 58 |
Re: Folger Prusa i3 Kit from ebay October 15, 2014 12:06AM |
Registered: 9 years ago Posts: 54 |
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Waltermixx
Awesome that is very clean. Another reason to go with your modification of the extruder...
I know what I am doing this coming weekend
i also checked out the thingiverse item... once again wow awesome!
Re: Folger Prusa i3 Kit from ebay October 15, 2014 12:08AM |
Registered: 9 years ago Posts: 54 |
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czmorris
Waltermixx, Your setup looks very clean. I love the stand you made for the LCD.
Dooms101, That skull looks great. Did you use acetone fumes or anything for smoothing the surface? Great finish.
Re: Folger Prusa i3 Kit from ebay October 15, 2014 12:46AM |
Registered: 9 years ago Posts: 58 |
Re: Folger Prusa i3 Kit from ebay October 15, 2014 10:00AM |
Registered: 10 years ago Posts: 477 |
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jjbunn
I'm really nervous about the Z home: worried about the head cracking the glass bed!
I set up the Z limit switch so that the head comes to rest about 5mm above the bed. I was following calibration instructions that specified moving the head down from that position so that a piece of paper just slides under the head, and I checked this all around the bed, adjusting its height as I went.
What I don't understand is how the Arduino/RAMPS knows how much further down from the Z stop the bed is? Do I need to look at the Z position below the endstop and add it into my configuration.h file? That was not clear to me.
Re: Folger Prusa i3 Kit from ebay October 15, 2014 10:14AM |
Registered: 9 years ago Posts: 54 |
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czmorris
Awesome. I have used 0.1 and 0.05 on some test prints and I was very pleased with those. My other machine is limited to 0.2 so this is a nice improvement. Now when printing a bunch of parts in one run I just set the layers thin where needed and thicker where it isn't. So the print run is a good balance between speed and quality.
The thing that triggered me asking about the acetone was mostly how much shine the print surface seems to have in that shot. Usually I only see that straight off the printer with my black ABS when running at higher temps (260 - 265). I did have a black spool at one point in time that was generally more glossy than others though I do not remember the brand.
Your shroud design is nice. So far I haven't had much of an issue with warping or extrusion problems but if I do I may make use of it.
Re: Folger Prusa i3 Kit from ebay October 15, 2014 11:42AM |
Registered: 9 years ago Posts: 58 |
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dooms101
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czmorris
Awesome. I have used 0.1 and 0.05 on some test prints and I was very pleased with those. My other machine is limited to 0.2 so this is a nice improvement. Now when printing a bunch of parts in one run I just set the layers thin where needed and thicker where it isn't. So the print run is a good balance between speed and quality.
The thing that triggered me asking about the acetone was mostly how much shine the print surface seems to have in that shot. Usually I only see that straight off the printer with my black ABS when running at higher temps (260 - 265). I did have a black spool at one point in time that was generally more glossy than others though I do not remember the brand.
Your shroud design is nice. So far I haven't had much of an issue with warping or extrusion problems but if I do I may make use of it.
Wow, I haven't tried anything as low as 0.1 or 0.05. I want sure if this printer could handle that, I might give it a try.
It might be the filament I'm using? It's just plain old Sainsmart stuff off amazon. I did notice that this filament is extra glossy, my friend's prints don't look anything like it.
When do you print at 260? That seems really high.
Re: Folger Prusa i3 Kit from ebay October 15, 2014 12:48PM |
Registered: 9 years ago Posts: 36 |
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SteveRoy
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jjbunn
I'm really nervous about the Z home: worried about the head cracking the glass bed!
I set up the Z limit switch so that the head comes to rest about 5mm above the bed. I was following calibration instructions that specified moving the head down from that position so that a piece of paper just slides under the head, and I checked this all around the bed, adjusting its height as I went.
What I don't understand is how the Arduino/RAMPS knows how much further down from the Z stop the bed is? Do I need to look at the Z position below the endstop and add it into my configuration.h file? That was not clear to me.
5mm from the glass won't work, he printer Z axis needs to home a paper width from the bed.
Use blue painter tape on glass and adjust your Z endstop so that the nozzle tip is just off the glass/tape and use the bed corner adjustors to get it the same in every corner.
The RAMPS knows where the end stops are and has to home before it starts the print.
Steve
Re: Folger Prusa i3 Kit from ebay October 15, 2014 02:26PM |
Registered: 9 years ago Posts: 58 |
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jjbunn
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SteveRoy
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jjbunn
I'm really nervous about the Z home: worried about the head cracking the glass bed!
I set up the Z limit switch so that the head comes to rest about 5mm above the bed. I was following calibration instructions that specified moving the head down from that position so that a piece of paper just slides under the head, and I checked this all around the bed, adjusting its height as I went.
What I don't understand is how the Arduino/RAMPS knows how much further down from the Z stop the bed is? Do I need to look at the Z position below the endstop and add it into my configuration.h file? That was not clear to me.
5mm from the glass won't work, he printer Z axis needs to home a paper width from the bed.
Use blue painter tape on glass and adjust your Z endstop so that the nozzle tip is just off the glass/tape and use the bed corner adjustors to get it the same in every corner.
The RAMPS knows where the end stops are and has to home before it starts the print.
Steve
OK, I bit my lip and set Z home to ~0.5mm from the glass bed. This is not too risky, as the bed is on springs anyway, so a little error (overshoot) will depress the springs rather than cracking the glass. Famous Last Words!
After tinkering mainly with nozzle and bed temperature, my prints are improving. This is a spool holder support in PLA, using 190C nozzle and 80C bed:
Spool Holder Side
My PLA seems to need these higher temperatures - initial tests with e.g. nozzle 165C were awful!
I'm not finding any need for tape/hairspray/glue on the glass bed. The prints stick nicely to the glass, which when it cools down a little, releases them easily.
Re: Folger Prusa i3 Kit from ebay October 17, 2014 07:22PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 12:53PM |
Registered: 12 years ago Posts: 76 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 01:27PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 03:12PM |
Registered: 9 years ago Posts: 58 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 03:22PM |
Registered: 12 years ago Posts: 76 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 03:26PM |
Registered: 9 years ago Posts: 58 |
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Wpflum
I pushed them in through the ends the same way and they went in tight but not tight enough that I felt the plastic might break. I was really surprised when I saw the bearing out of the holder and then found out that the holder wasn't broken, I was thinking defect in the printed part or something, then discovered that the rest were just as loose. No need to send me replacements unless I can't get something working so I can print out replacements myself. I also sent you an email through ebay, I use my wifes account 'pflumco' which is what I used to purchase the kit, just to let you know what the issue was. If you model a 'better' bearing mount let me know so I can download and print it out myself. I just picked up some more gt2 belt through because I thought I might have stretched the existing belt or torn off a tooth when the filament snagged on the spool and wouldn't feed, once again on an over night print, I guess I just have to accept the fact that the printer wants my attention during the prints so I have to be in the room
Re: Folger Prusa i3 Kit from ebay October 18, 2014 03:29PM |
Registered: 12 years ago Posts: 76 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 03:33PM |
Registered: 12 years ago Posts: 76 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 03:49PM |
Registered: 9 years ago Posts: 58 |
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Wpflum
Sorry, for some reason I misread your original post and was thinking I was taking to the owner of the place I got the kit from I did see that he had posted here before so it didn't seem out of place.
I was wondering how he had time to post at all what with the amount of kits he has sold.
Re: Folger Prusa i3 Kit from ebay October 18, 2014 04:50PM |
Registered: 9 years ago Posts: 58 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 04:55PM |
Registered: 12 years ago Posts: 76 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 05:51PM |
Registered: 9 years ago Posts: 58 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 06:14PM |
Registered: 9 years ago Posts: 208 |
Re: Folger Prusa i3 Kit from ebay October 18, 2014 06:56PM |
Registered: 12 years ago Posts: 76 |