Dual wades like extruder
Posted by amigob
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Dual wades like extruder March 17, 2016 04:58PM |
My first modified and printed extruder for 1.75 mm filament
This part weights 128 grams he width is 33 mm So you can mount two of them om one X carrier, mirror the extruder.
I will use 50 gram round NEMA 14 7Nm/cm stepper
Hot end needs to be fitted yet
I shortened the hobbit bolt grind a slot in it to fit a E ring on the right side
On the left side I used drill press to tap number 1 M8 completely thru,and number 3 only 2 or 3 turns,
so that it is easy to mount it on the hobbit bolt.
Putting the hobbit bolt in needs so much force that I don't even have to use super glue to fix it.
I had to put the hobbit bolt in a bench vise and use both hands to screw the gear in place. so no nema
14 stepper will ever move the gear in relation to the hobbit bolt
Next up is the X carrier.
Edited 2 time(s). Last edit at 03/17/2016 05:10PM by amigob.
This part weights 128 grams he width is 33 mm So you can mount two of them om one X carrier, mirror the extruder.
I will use 50 gram round NEMA 14 7Nm/cm stepper
Hot end needs to be fitted yet
I shortened the hobbit bolt grind a slot in it to fit a E ring on the right side
On the left side I used drill press to tap number 1 M8 completely thru,and number 3 only 2 or 3 turns,
so that it is easy to mount it on the hobbit bolt.
Putting the hobbit bolt in needs so much force that I don't even have to use super glue to fix it.
I had to put the hobbit bolt in a bench vise and use both hands to screw the gear in place. so no nema
14 stepper will ever move the gear in relation to the hobbit bolt
Next up is the X carrier.
Edited 2 time(s). Last edit at 03/17/2016 05:10PM by amigob.
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Re: Dual wades like extruder March 17, 2016 05:17PM |
Here how it is going to look in dual configuration
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Re: Dual wades like extruder March 18, 2016 01:13PM |
I've been working on something similar, except mine looks a lot clunkier than yours 
I have nema14s on order, but for now it will have to use 17s. The hot ends have smooth upper throats that are held in clamps that are accessible through the lower part of the extruders. That should make it easy to level the nozzles by resting them both on the glass bed and then tightening the clamps.
I have nema14s on order, but for now it will have to use 17s. The hot ends have smooth upper throats that are held in clamps that are accessible through the lower part of the extruders. That should make it easy to level the nozzles by resting them both on the glass bed and then tightening the clamps.
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Re: Dual wades like extruder March 24, 2016 05:14PM |
Small update
With some small testing I found out that.
- The stepper motor a cooler needs even with 400mA
- you need low(?) acceleration of the extruder
- I got 3.5 kg pull power until cleaning filament breaks :-)
- stepper motor beeps ( standing still 50% of the time ) in combination with raps128 ( I don't know why )
- hot end mount does not work that well, it is not easy to mount the hot end strait,
- I insert PTFE in to Extruder, that is very difficult with this mount.
movie of the beep sound Movie
Edited 2 time(s). Last edit at 03/24/2016 05:18PM by amigob.
With some small testing I found out that.
- The stepper motor a cooler needs even with 400mA
- you need low(?) acceleration of the extruder
- I got 3.5 kg pull power until cleaning filament breaks :-)
- stepper motor beeps ( standing still 50% of the time ) in combination with raps128 ( I don't know why )
- hot end mount does not work that well, it is not easy to mount the hot end strait,
- I insert PTFE in to Extruder, that is very difficult with this mount.
movie of the beep sound Movie
Edited 2 time(s). Last edit at 03/24/2016 05:18PM by amigob.
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Re: Dual wades like extruder March 24, 2016 05:42PM |
First try, after calibration
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Re: Dual wades like extruder March 24, 2016 06:07PM |
Mhhh have a problem that I can't recognize
Edited 1 time(s). Last edit at 03/24/2016 06:10PM by amigob.
Edited 1 time(s). Last edit at 03/24/2016 06:10PM by amigob.
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Re: Dual wades like extruder March 24, 2016 06:52PM |
Me neither. Are the marks extra stuff sticking out, or missing stuff sticking in? Same all sides? At least the extruder is printing, that's always a nice moment
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Re: Dual wades like extruder March 30, 2016 03:10PM |
The extrude does a good job, also on high speeds I had to reduce the retrract speed, it was set to 20mm/s,
It sometimes didn't make it.
This is extruded with one have of the dual wade's
It sometimes didn't make it.
This is extruded with one have of the dual wade's
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Re: Dual wades like extruder April 02, 2016 03:38PM |
and this is how it looks if you put two on
cables are a problem but I am already working on a solution for that
cables are a problem but I am already working on a solution for that
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Re: Dual wades like extruder April 02, 2016 05:11PM |
Looks and sounds like the stepper motor missing steps - just being overwhelmed by the required torque. You're extruding pretty fast there though, that's impressive for such a tiny motor. What's the gear ratio?
Yes, abs is great for light parts, the low density really works in our favour - and you get more of it for your money I must admit, I really like the way abs prints, especially the great bridging. I just really need to get an enclosure done to get the de-lamination under control.
Yes, abs is great for light parts, the low density really works in our favour - and you get more of it for your money
I must admit, I really like the way abs prints, especially the great bridging. I just really need to get an enclosure done to get the de-lamination under control.
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Re: Dual wades like extruder April 03, 2016 07:15AM |
I think my dual extruder set-up is way too heavy to ever go that fast. I suspect the printer would shake the table to bits
Yes, I agree that the problems with abs are sometimes overstated. The warping/delamination problems do show up from time to time depending on print shape, but for the most part you can get good prints by printing hotter and slower. I finished my first roll of abs recently and I'm currently having to find the right settings for the new roll. It is remarkably different!
Yes, I agree that the problems with abs are sometimes overstated. The warping/delamination problems do show up from time to time depending on print shape, but for the most part you can get good prints by printing hotter and slower. I finished my first roll of abs recently and I'm currently having to find the right settings for the new roll. It is remarkably different!
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Re: Dual wades like extruder April 06, 2016 02:09PM |
yesterday I printed the cold end cooler with 50% flow ( by accident )
A layers and perimeters are there but not connected :-)
So today a new try
and when cooler is finished I can start using the second extruder. I got the filament already in :-)
P3steel DXL, with Due/RADDS/Raps128 dual Wade's extruder
A layers and perimeters are there but not connected :-)
So today a new try
and when cooler is finished I can start using the second extruder. I got the filament already in :-)
P3steel DXL, with Due/RADDS/Raps128 dual Wade's extruder
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Re: Dual wades like extruder April 06, 2016 05:57PM |
Ah, there's nothing like new filament to play with
Nice looking fan shroud.
Nice looking fan shroud.
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Re: Dual wades like extruder April 08, 2016 10:35AM |
There is a draw back, you can't remove it, I am thinking about that one.
I had my doubts if the PLA would hold, because it is directly beside the heater and aluminum plate.
But I don't see any problem, I print better at high speed then a low speed with ABS. As long as the object is big enough :-)
P3steel DXL, with Due/RADDS/Raps128 dual Wade's extruder
I had my doubts if the PLA would hold, because it is directly beside the heater and aluminum plate.
But I don't see any problem, I print better at high speed then a low speed with ABS. As long as the object is big enough :-)
P3steel DXL, with Due/RADDS/Raps128 dual Wade's extruder
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