Adding Multi extruder support - howto July 10, 2014 03:35AM |
Registered: 10 years ago Posts: 101 |
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dc42
..... having gone through this myself and not got it quite right first time, this is what I think you need:
1. Two Ormerod hot end kits, [reprappro.com]. I am assuming that you want to keep your existing single-nozzle hot end as a backup, and perhaps for single-nozzle mixing extruder experiments. In fact two hot end kits provide more than you need, you will have a heatsink and fan left over, but it is slightly cheaper than buying one hot end kit and the extra parts.
2. One Duet X4 expansion board, [www.think3dprint3d.com].
3. One Ormerod extruder kit. I haven't found this on the RepRapPro shop, but I expect Sally can give you a price.
4. One Ormerod hot end loom (unless you make it up yourself). I haven't found this on the RepRapPro shop either.
5. For the 2-nozzle heatsink block, there are a few possibilities. You can ask DaveK if he can quote you a price for a copy of the 2-nozzle heatsink block that he made for me, and use it with the modified nozzle mount I published here [github.com]. Or you can bolt two standard heatsink blocks together at the back of the hot end, with what were the nozzle mounting screws in one of them drilled out and tapped for the nozzles.
I'll post a photo when I have finished assembling it.
Re: Adding Multi extruder support - howto July 10, 2014 04:55AM |
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Re: Adding Multi extruder support - howto July 10, 2014 05:06AM |
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Re: Adding Multi extruder support - howto July 10, 2014 05:59AM |
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Re: Adding Multi extruder support - howto July 10, 2014 06:19AM |
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colsenfoto
This is my sketch for the 3-nozzle-mount-block:
Re: Adding Multi extruder support - howto July 11, 2014 06:04PM |
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Re: Adding Multi extruder support - howto July 12, 2014 10:08AM |
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Re: Adding Multi extruder support - howto July 12, 2014 12:19PM |
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Re: Adding Multi extruder support - howto July 12, 2014 02:00PM |
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Re: Adding Multi extruder support - howto July 12, 2014 04:57PM |
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Re: Adding Multi extruder support - howto July 12, 2014 05:54PM |
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colsenfoto
I guess you have modified the hotend-mounting piece on the x-runner.
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colsenfoto
I have been thinking about a way to also adjust the hotend in the Y-direction to align the nozzles perfectly with the x-axis.
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colsenfoto
One thing to be aware of is that the wires for the thermistors should not touch the heater-blocks. At printing temperatures they will melt right through the insulation.
Re: Adding Multi extruder support - howto July 14, 2014 08:01AM |
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Re: Adding Multi extruder support - howto July 14, 2014 09:46AM |
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Re: Adding Multi extruder support - howto July 14, 2014 10:52AM |
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Re: Adding Multi extruder support - howto July 14, 2014 11:36AM |
Registered: 10 years ago Posts: 2,472 |
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colsenfoto
Another user, @dmould, posted this link to hybbyking - everything you would ever need in silicone-wires: [www.hobbyking.com]
See his good points in this post: [forums.reprap.org]
Re: Adding Multi extruder support - howto July 14, 2014 11:52AM |
Registered: 10 years ago Posts: 14,684 |
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appjaws1
Hi David,
Are the points you noticed included in the scad file on gitub? This is a great design and I will make the mounting pillars for the X4 and Duet boards stronger, assuming I can understand what to change.
Paul
Re: Adding Multi extruder support - howto July 15, 2014 10:05AM |
Registered: 10 years ago Posts: 101 |
Re: Adding Multi extruder support - howto July 15, 2014 11:50AM |
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Quote
colsenfoto
@dmould, both silicone wires and PFTE wires survive a hot soldering iron, which is typically around 400C.....tested many times....Normal cables will let out the smoke :-)
Temperature specifications for cables are typically given for a 10 year expected lifetime at that temperature - before the cable have to be replaced.
:-) Carsten
Re: Adding Multi extruder support - howto July 15, 2014 12:29PM |
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Re: Adding Multi extruder support - howto July 15, 2014 02:31PM |
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Re: Adding Multi extruder support - howto July 15, 2014 02:36PM |
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Quote
dc42
I am now at the state where I have done a successful print with each nozzle, with the other nozzle set to a standby temperature of 150C which I hope is high enough to prevent it snagging on the print.
Re: Adding Multi extruder support - howto July 15, 2014 02:50PM |
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Re: Adding Multi extruder support - howto July 16, 2014 02:51AM |
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Re: Adding Multi extruder support - howto July 16, 2014 04:23AM |
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Re: Adding Multi extruder support - howto July 16, 2014 04:45AM |
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Re: Adding Multi extruder support - howto July 16, 2014 05:33AM |
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Re: Adding Multi extruder support - howto July 16, 2014 06:10AM |
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