How to determine acceptable clearance between parts? September 27, 2016 04:37AM |
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Re: How to determine acceptable clearance between parts? September 27, 2016 07:04AM |
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Re: How to determine acceptable clearance between parts? September 27, 2016 07:27AM |
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Re: How to determine acceptable clearance between parts? September 28, 2016 07:28AM |
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No. The width of the extrusion is governed only by the volume extruded per unit length and the height of the extrusion. The volume is fixed by the slicing software (which calculates volume per unit length from desired width and layer height). The height of the extrusion is fixed by the distance between the nozzle and the previous layer - or the bed in the case of the first layer. It's geometry ... if V = volume, W = width, L = length and H = height, then:Quote
mat_fr
I suppose the temperature can also have an effect on the squishing, if the temperature is too high the extruded plastic will be too soft?
Re: How to determine acceptable clearance between parts? September 29, 2016 03:36AM |
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Re: How to determine acceptable clearance between parts? September 29, 2016 03:58PM |
Registered: 9 years ago Posts: 82 |
Re: How to determine acceptable clearance between parts? September 30, 2016 07:35AM |
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Re: How to determine acceptable clearance between parts? September 30, 2016 07:48AM |
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Re: How to determine acceptable clearance between parts? September 30, 2016 12:23PM |
Registered: 8 years ago Posts: 45 |
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mat_fr
As I previously said in another post I ended up printing the acrylic spacer for the hot end, so I should be able to add a second fan eventually (there was only one on the first Ormerod2) but from what I've seen the second fan mount ends up being lower than the nozzle so maybe something is wrong with the print, or the model, or my nozzle setup. I'll work on it.
Thanks
Matthieu
Re: How to determine acceptable clearance between parts? September 30, 2016 01:05PM |
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Re: How to determine acceptable clearance between parts? October 01, 2016 09:54AM |
Registered: 9 years ago Posts: 82 |
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trevmas
There are two pips inside the cooling fan duct slot that need to locate into the holes on the fan spacer. I couldn't get the duct high enough till I realised some brute force was needed to get the duct on all the way. With a quickset nozzle you need to have the neck of the nozzle just on the edge of the cooling block to get the right height, but I think with the one piece nozzle if it's screwed in correctly it should be the right height anyway.
One thing that may or may not be an issue is the distance from the duct outlet to the nozzle. The (single) quickset nozzle is normally located in the cooling block position nearest the duct making it quite close. The one piece nozzle sits in the centre of the cooling block making it further away from the fan duct outlet. As it is, with the quickset nozzle and cooling fan on, the bridging quality is impacted by the direction of travel.
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Darathy
I have found the original Fan duct to be too noisy becouse of too thin airway which the air comes out and it didnt cool anaugh till i really rameped up the speed on the fan. I have modified the Fan Spacer to a new hight and added a fan duct designed by another forummember which i dont remember who(sorry).
I also glued a peice of Metal sheet( part of Shielding which came with the printer and i never installed it becouse it didnt seem to fit) so the air wouldnt blow on the Heater which couse temperatures to drop when a lot of cooling is required.
I will attach the STLs for the duct and fan spacer in this post if anyone wants it.
Re: How to determine acceptable clearance between parts? October 01, 2016 03:45PM |
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Re: How to determine acceptable clearance between parts? October 03, 2016 07:56AM |
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Re: How to determine acceptable clearance between parts? October 05, 2016 11:03AM |
Registered: 9 years ago Posts: 638 |
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mat_fr
I've finally managed to put a fan on the stock duct this week-end. As I changed the main hot end fan I was able to put the former one as a part fan (and hear its marvelous noise again, oh joy).
I've tested this morning a print, it's really efficient on the part fans'side (X end side), a lot less on the other side indeed.
I was able to print your fan duct also, so I'm now printing the matching spacer.
It's incredible how we can tweak this printer... Alluminum arm, spring loader extruder, helical gears for extruder and Z axis, Y rod adjuster, extra fan. And all that does make a big difference.
Seems that I only miss DC42 differencial IR sensor and a cable chain (cables are a mess on my printer).
Re: How to determine acceptable clearance between parts? October 05, 2016 11:13AM |
Registered: 9 years ago Posts: 638 |
Re: How to determine acceptable clearance between parts? October 05, 2016 11:20AM |
Registered: 9 years ago Posts: 82 |
Re: How to determine acceptable clearance between parts? October 05, 2016 11:36AM |
Registered: 9 years ago Posts: 638 |
Re: How to determine acceptable clearance between parts? October 05, 2016 11:39AM |
Registered: 9 years ago Posts: 82 |
Re: How to determine acceptable clearance between parts? October 06, 2016 11:55AM |
Registered: 8 years ago Posts: 45 |
Quote
mat_fr
It's incredible how we can tweak this printer... Alluminum arm, spring loader extruder, helical gears for extruder and Z axis, Y rod adjuster, extra fan. And all that does make a big difference.
Seems that I only miss DC42 differencial IR sensor and a cable chain (cables are a mess on my printer).