Yeah, I posted that I was going to do something else. Then I did this, https://poal.co/s/3dprinting/784031
Well, I needed to print some flexible filament (TPU) and it would not print with my current setup so I had to figure out what was wrong and modify it. So that's what I did.
Now I can print flexible filament.
This is because (with some printers) there is a large enough gap between the feeding gears and the extruder/feeding tube that the flexible filament can wrap around the gear rather than going where it should.
Now, I have had problems like this with regular PLA too and I have a very specific process I do to remove PLA and re-feed a different color/type. (I don't have a multi material printer, one at a time or I have to splice it).
So, I wanted to print some flexible TPU to use a gasket for a project I posted before but it would not feed.
A minor mod was all that was needed but I did need to read up a bit on other people seeing similar problems to do this as I have modded this damn thing so much it is basically a printer that no one has now.
The very, very, short version of this mod is... Take apart your print head. Look at the distance between the feeding gears and the inlet. If it has a noticeable gap, get some PTFE tube that matches your filament and the diameter of the feeing inlet (or drill the inlet out a little if you have to) and make sure there is VERY little space between the gears and the inlet.
Yeah, I posted that I was going to do something else. Then I did this, https://poal.co/s/3dprinting/784031
Well, I needed to print some flexible filament (TPU) and it would not print with my current setup so I had to figure out what was wrong and modify it. So that's what I did.
Now I can print flexible filament.
This is because (with some printers) there is a large enough gap between the feeding gears and the extruder/feeding tube that the flexible filament can wrap around the gear rather than going where it should.
Now, I have had problems like this with regular PLA too and I have a very specific process I do to remove PLA and re-feed a different color/type. (I don't have a multi material printer, one at a time or I have to splice it).
So, I wanted to print some flexible TPU to use a gasket for a project I posted before but it would not feed.
A minor mod was all that was needed but I did need to read up a bit on other people seeing similar problems to do this as I have modded this damn thing so much it is basically a printer that no one has now.
The very, very, short version of this mod is... Take apart your print head. Look at the distance between the feeding gears and the inlet. If it has a noticeable gap, get some PTFE tube that matches your filament and the diameter of the feeing inlet (or drill the inlet out a little if you have to) and make sure there is VERY little space between the gears and the inlet.
[EDIT]
I did not explain the hex wrench sticking out of the assembly. This is a trick I figured out years ago to make it easier to line up the assembly with the thermal block and its inlet. If you get a small enough hex wrench you can use it like the filament and have it help hold the rest of the assembly in place while you re-assemble it. I don't know if I have seen anyone post that. I just sort of did that one day when I was annoyed and it worked so that's part of my process now.
@MrFadedGlory As I mentioned in the other post.
[1](https://poal.co/static/images/eae0c0984434983e.jpg)
[2](https://poal.co/static/images/3cf0834c8c008000.jpg)
[3](https://poal.co/static/images/7ec806c60c808000.jpg)
[4](https://poal.co/static/images/f0d6f2f9ae8eccfc.jpg)
[5](https://poal.co/static/images/eaf75d7d55dcebfb.jpg)
[6](https://poal.co/static/images/b3d89ee7cbad979d.jpg)
[7](https://poal.co/static/images/5919c9cd8763e313.jpg)
[8](https://poal.co/static/images/c3862747534786d0.jpg)
[9](https://poal.co/static/images/c0889acccccacc38.jpg)