Re: My Replikeo Prusa i3 Rework Build December 21, 2014 08:23PM |
Registered: 9 years ago Posts: 137 |
Thanks for the tips! Do post the pics of tensioning screws, I'm having trouble tightening mine to correct tension level.Quote
Blue Ice
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Bratan
Can someone recommend me a better hotend? I'm having so many issues with this one such as I spend about 15 minutes trying to get new filament inside the hole, and it clogs and backs out frequently, doesn't feed correct length no matter how many extrusion steps I take, and so on. No a single print is the same... I tried a lot of things for the many months that I had this printer, that I'm now convinced it's the HE that's the problem...
Hi Bratan,
Been away from this thread for a while, but I've been reading all of the posts. After reading yours, I thought I'd share a few tips about the hotend that I found out that might be helpful for you:
- When I withdraw filament, I just loosen the screws holding the filament against the drive gear, with the extruder up to temperature. Then I pull it out. At the end, the tip of the filament is pointed.
- My filament hole in the extruder and in the hotend don't line up. I find the easiest way to reinsert filament is to keep the pointed end from the step before (I used to trim it off). Now when I insert filament it just guides itself in.
- Make sure that you have a fan for PLA. I tried printing PLA without a fan and it was very tough to get things to work out.
- I have been running my printer for 3 months with spacers instead of springs on the tensioning screws that press the filament against the drive gear (picture later tonight). It has worked very well and very accurately.
- If the print comes out wobbly, try replacing the screws that hold the hotend in place with slightly larger screws (only if the hotend wobbles when you pull on it). Worked wonders for me.
Re: My Replikeo Prusa i3 Rework Build December 23, 2014 02:39AM |
Registered: 9 years ago Posts: 120 |
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Bratan
Thanks for the tips! Do post the pics of tensioning screws, I'm having trouble tightening mine to correct tension level.
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Bratan
Pointed end of filament is fatter then the rest, so it doesn't fit backI also tried sharpening it, still have issues inserting it...
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Bratan
On the last one, I followed your advise from previous posts and used #8 screws instead of metric. They do fit better...
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Bratan
I have huge issue right now, can't print at all. After about 5 minutes filament clogs hot end. Every freaking time
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Bratan
Also question to all who use 1.75 mm filament in standard J-head that came with the kit: Is it suppose to double on itself inside the hot end? Meaning that inside it melts and becomes 3mm, or is it just my glitch?
Re: My Replikeo Prusa i3 Rework Build December 23, 2014 12:02PM |
Registered: 9 years ago Posts: 137 |
Re: My Replikeo Prusa i3 Rework Build December 24, 2014 04:17AM |
Registered: 8 years ago Posts: 30 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 07:17AM |
Registered: 9 years ago Posts: 124 |
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Bratan
Thanks Blue Ice, that's interesting idea with spaces. I might do that, just need to find correct length.
I'm printing with white ABS 1.75mm filament. I'm starting to think that J-Head that came with the kit is not meant for 1.75 filament.
I'm attaching pictures of what "doubled up" filament looks like, I really wanted to know if that's normal.
Also how do I disassemble this J-head to clean it? It might be glued together? I want to buy guitar string but not sure what thickness I need for 0.4mm nozzle? I live in US so strings are most likely not metric...
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 10:05AM |
Registered: 9 years ago Posts: 518 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 10:47AM |
Registered: 9 years ago Posts: 137 |
This is fantastic! I never got my servo probe to work. Can you explain more how this works? Does it just replace Z endstop, or there's some kind of calibration sequence I need to program? Also where can you get the probe, is there any specific model you used? Is eMotiontec extruder what comes with Replikeo's kit?Quote
TheZippyMan
Hey guys,
I have constructed a holder for a 17mm outer diameter inductive/capazitive probe. It fits in the standard Prusa i3 eMotiontec extruder.
You can find it here:
[www.thingiverse.com]
I would be happy, if you guys can give me some feedback!
Greetings
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 10:48AM |
Registered: 9 years ago Posts: 137 |
Thanks man! How do you clean it after it's disasambled? I removed mine and it has a lot of ABS in it. If I just hit it up and invert would it pour out?Quote
Allnei
You are right, original extruder is not for 1.75mm, but for 3mm filament
Also cleaning extruder is easy. Aluminium end is just screwed into black plastic barrel without glue. Only thing that will be damaged is capton tape around extruder body
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 11:01AM |
Registered: 8 years ago Posts: 15 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 12:01PM |
Registered: 9 years ago Posts: 137 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 01:06PM |
Registered: 8 years ago Posts: 15 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 02:40PM |
Registered: 8 years ago Posts: 30 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 03:58PM |
Registered: 9 years ago Posts: 137 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 04:01PM |
Registered: 9 years ago Posts: 137 |
Re: My Replikeo Prusa i3 Rework Build December 27, 2014 05:47PM |
Registered: 8 years ago Posts: 30 |
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Bratan
Why do you think they were cut?Quote
Jonny Five
Why are the fan power wires cut at the halfway point and then re-soldered back together? What does this accomplish?That's probably how long wire were that came with the fan, so extended wire was soldered...
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 12:50PM |
Registered: 9 years ago Posts: 518 |
Quote
Bratan
This is fantastic! I never got my servo probe to work. Can you explain more how this works? Does it just replace Z endstop, or there's some kind of calibration sequence I need to program? Also where can you get the probe, is there any specific model you used? Is eMotiontec extruder what comes with Replikeo's kit?Quote
TheZippyMan
Hey guys,
I have constructed a holder for a 17mm outer diameter inductive/capazitive probe. It fits in the standard Prusa i3 eMotiontec extruder.
You can find it here:
[www.thingiverse.com]
I would be happy, if you guys can give me some feedback!
Greetings
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 08:35PM |
Registered: 9 years ago Posts: 120 |
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 08:50PM |
Registered: 9 years ago Posts: 120 |
Quote
Bratan
Thanks Blue Ice, that's interesting idea with spaces. I might do that, just need to find correct length.
I'm printing with white ABS 1.75mm filament. I'm starting to think that J-Head that came with the kit is not meant for 1.75 filament.
I'm attaching pictures of what "doubled up" filament looks like, I really wanted to know if that's normal.
Also how do I disassemble this J-head to clean it? It might be glued together? I want to buy guitar string but not sure what thickness I need for 0.4mm nozzle? I live in US so strings are most likely not metric...
Quote
Bratan
I just received J-head made by SainSmart to replace mine, and it doesn't fit at all. I realized it's because it has this brass part on top, while hotend that came with Replikeo kit has same brass piece inside plastic. Is there an alternative extruded that will hold it?
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 08:54PM |
Registered: 9 years ago Posts: 103 |
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 08:57PM |
Registered: 9 years ago Posts: 120 |
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Bratan
Thanks man! How do you clean it after it's disasambled? I removed mine and it has a lot of ABS in it. If I just hit it up and invert would it pour out?Quote
Allnei
You are right, original extruder is not for 1.75mm, but for 3mm filament
Also cleaning extruder is easy. Aluminium end is just screwed into black plastic barrel without glue. Only thing that will be damaged is capton tape around extruder body
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 11:01PM |
Registered: 9 years ago Posts: 120 |
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LittleMike
Hey all,
Sorry, I have been totally out of the loops with real life and had to put my printer build on hold. Would someone be so kind as to refresh my memory, please? I've almost completed the build using the wiki instructions and I'm stuck on the last part - wiring the extruder fan. I thought I recall some people saying not to solder it to D2 like in the instructions. Where have you all connected it to and what are the pros and cons to each set up? I really want to get this thing up and running so I can calibrate and start printing!
Re: My Replikeo Prusa i3 Rework Build December 28, 2014 11:11PM |
Registered: 9 years ago Posts: 120 |
Quote
TheZippyMan
Hey guys,
I have constructed a holder for a 17mm outer diameter inductive/capazitive probe. It fits in the standard Prusa i3 eMotiontec extruder.
You can find it here:
[www.thingiverse.com]
I would be happy, if you guys can give me some feedback!
Greetings
Re: My Replikeo Prusa i3 Rework Build December 29, 2014 09:47AM |
Registered: 9 years ago Posts: 137 |
Quote
Blue Ice
Spot on. As Allnei said, the Replikeo kit is meant for 3mm filament. I've been using Replikeo's spool (white 3mm ABS for me) and it's worked really well.
That's a real bummer that you've been using the printer for months with the wrong size of filamentBut when you get 3mm filament for it, post pictures of your first prints! I'd love to see what they look like.
Also, it's not all bad that you have been printing with the wrong sized filament. Surely you learned a lot about your printer along the way!
Quote
Bratan
I just received J-head made by SainSmart to replace mine, and it doesn't fit at all. I realized it's because it has this brass part on top, while hotend that came with Replikeo kit has same brass piece inside plastic. Is there an alternative extruded that will hold it?
I would have probably just purchased a 3mm J-Head or used the stock one because the cold end part of the extruder is designed for 3mm filament. But that's okay if you want to do 1.75mm filament too.
I think that the extruder you picked is one of the three (?) types of 1.75mm J-Head type hotends that is popular between manufacturers. One type (non-bowden) appears to have that brass part:
http://www.ebay.com/itm/like/171214152165?lpid=82&chn=ps
http://www.banggood.com/J-Head-Nozzle-MKIV-MKV-Hotend-Extrusion-Head-For-3D-Printer-RepRap-p-949224.html?currency=USD&refreshTmp=1&utm_source=google&utm_medium=shopping&utm_content=ruby&utm_campaign=Electronic-xie-us&gclid=COOympSN6sICFepaMgod328Aug
And the other non-bowden one appears to look flat, just like the 3mm Replikeo hotend:
http://www.amazon.com/RepRap-J-Head-Hotend-Filamnet-Printer/dp/B00EC1OT6O
http://www.makerfarm.com/index.php/printer-electronics/j-head-hot-end-for-1-75mm-filament.html
The third type, the bowden 1.75mm J-Head, has a brass press-fit connector on the top, not the same thing that you have:
http://www.3dprintingstore.co.za/extruders-hotends/j-head-hot-end-for-1-75mm-filament-0-4mm-nozzle-with-bowden-connection/
http://www.aliexpress.com/item/Peek-Bowden-feed-J-head-hot-end-assembled-with-0-5mm-Nozzle-Cartridge-heater-1m-PTFE/2020452503.html
I'm not sure how your kind of extruder is used. Maybe ask on the main RepRap forum?
Re: My Replikeo Prusa i3 Rework Build December 29, 2014 10:38AM |
Registered: 9 years ago Posts: 518 |
Quote
Blue Ice
Quote
TheZippyMan
Hey guys,
I have constructed a holder for a 17mm outer diameter inductive/capazitive probe. It fits in the standard Prusa i3 eMotiontec extruder.
You can find it here:
[www.thingiverse.com]
I would be happy, if you guys can give me some feedback!
Greetings
It seems in the pictures on Thingiverse that you have a metal bed with no glass on top. I have a bed with glass on top of the heating circuit board. Will your setup work for me?
Thanks.
Re: My Replikeo Prusa i3 Rework Build December 29, 2014 12:55PM |
Registered: 9 years ago Posts: 103 |
Quote
Blue Ice
Quote
LittleMike
Hey all,
Sorry, I have been totally out of the loops with real life and had to put my printer build on hold. Would someone be so kind as to refresh my memory, please? I've almost completed the build using the wiki instructions and I'm stuck on the last part - wiring the extruder fan. I thought I recall some people saying not to solder it to D2 like in the instructions. Where have you all connected it to and what are the pros and cons to each set up? I really want to get this thing up and running so I can calibrate and start printing!
Sure!
I connected the fan by doing a quick and dirty solder job on the ends of the fan connector to a strip of male 0.1 in header. It does the job, and I didn't really want to wait for a crimping tool to ship to me just to connect the part with a proper connector. I just used what I had on hand. When I do the next big round of upgrades on my Pi3R I'll probably fix that too. I'm not really worried about the wires crossing as of now- it's set up pretty well.
Here is a picture that I just took:
Pros:
- Quick
- Cheap
- Sturdy if you use heat shrink (too late for me now)
Cons:
- Risky if you do it wrong
- You need to be handy with a soldering iron
EDIT: Yep, D2 is the right connector, by the way. I think the Replikeo kit has a male header preinstalled on the board, but it's a little strange that they don't have the matching connector for the fan.
Re: My Replikeo Prusa i3 Rework Build December 30, 2014 12:41AM |
Registered: 8 years ago Posts: 30 |
Re: My Replikeo Prusa i3 Rework Build January 02, 2015 09:58AM |
Registered: 9 years ago Posts: 14 |
Same problem with the clone j-head from replikeo ! I spent hours and hours to review all the printer, I think I would be mad !Quote
Bratan
Thanks man! How do you clean it after it's disasambled? I removed mine and it has a lot of ABS in it. If I just hit it up and invert would it pour out?
Re: My Replikeo Prusa i3 Rework Build January 02, 2015 04:49PM |
Registered: 9 years ago Posts: 120 |
Quote
Jonny Five
How did you guys mount your y-axis motor? The wiki instructions state to mount it such that the plug faces downwards. I've found that the power plug won't fit well though and the frame doesn't sit completely flat, and it kinks the wires as well.
Re: My Replikeo Prusa i3 Rework Build January 05, 2015 02:49AM |
Registered: 9 years ago Posts: 103 |
Re: My Replikeo Prusa i3 Rework Build January 05, 2015 01:15PM |
Registered: 8 years ago Posts: 18 |