1 Topic by accusedmonk (edited by accusedmonk 2014-11-03 17:11:57)

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Topic: Dual side fans, now with ducts

Update 11/3/14: I made changes to this design and have uploaded them to thingiverse : http://www.thingiverse.com/thing:527337

I've found out quick how much cooling PLA needs for overhangs.  So with my rapid prototyping machine, *huge grin*, I went through 4 iterations of an underneath fan mount for Lawsy's linear bearing carriage.  I'm using two 30mmx10mm fans.  I just started printing with it as I'm writing this so if any problems arise, I will update here.

It takes the E3D with stock power supply to stabilize temp after second layer about 1 min, then it's steady from there.  The fans come on after layer two full 100%.  I'm going to have to run PID's with the fans running.  It prints just beautifully actually but its fluctuating +-3 degrees.

http://i.imgur.com/zloH4yB.jpg

http://i.imgur.com/3zV3eBd.jpg

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

2 Reply by accusedmonk

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Re: Dual side fans, now with ducts

Success!  Overhangs no longer cause issue, at least not with this tulip print!  I'm curious as to how well ABS will print with this setup.  Unfortunately I'm basically out of ABS.  That test will happen another day!

http://i.imgur.com/JPzAILz.jpg

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

3 Reply by michael.t.albers

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Re: Dual side fans, now with ducts

nice job!.  any problems with the wiring?  It looks a little cramped where the thermistor and heating cartridge are.  Did you run the fans to the prntrboard or the the sanguinolo?  Details man, details! smile

4 Reply by accusedmonk

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Re: Dual side fans, now with ducts

No problems with the wiring at all.  I have them in parallel of course and ran back to the printrboard.   The left fan mount I modeled to bend around the heater and thermistor wiring.

These are the fans, at 5.1 cfm they definitely move some air:
http://www.jameco.com/webapp/wcs/stores … _212784_-1

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

5 Reply by Bookmaker

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Re: Dual side fans, now with ducts

What pins did you hook up to on the board?  Are you controlling from Slic3r?  I have a SD4 and all the fans are always on.  There is no control.

6 Reply by accusedmonk

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Re: Dual side fans, now with ducts

There weren't pins there, just holes for them labeled fan.  It sits just to the right of the thermistor headers.  I had to change the firmware pinout but it works great and is gcode controllable.

The only issue I found was the fans would turn off about every other layer, but I'm going to try the fans always on setting in slic3r.

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

7 Reply by accusedmonk

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Re: Dual side fans, now with ducts

I have went back into this design and added ducts.  It really helps to have the air flow directed at the point of extrusion.  Everything has clearance on my machine and I don't lose any build space.  If anyone would like files I can throw them up on thingiverse.

http://i.imgur.com/xzU4o8E.jpg

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

8 Reply by AZERATE

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Re: Dual side fans, now with ducts

I would appreciate sharing the files.
Is this Lawsy carriage or MK5 compatible?

Printit Mason and Printit Horizon printers
Multiple SD2s- Bulldog XL, E3D v5/v6/Lite6, Volcano, Hobb Goblin, Titan, .9 motor, Lawsy carriages, direct Y drive, fishing line...the list goes on
Filawinder and Filastruder #1870.....worth every penny!

9 Reply by accusedmonk (edited by accusedmonk 2014-11-03 17:04:36)

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Re: Dual side fans, now with ducts

Yeah it's for lawsy's carriage.  The arms mount to the bolts holding the bearing bracket.  I'll throw the files onto thingiverse.

Here you go : http://www.thingiverse.com/thing:527337

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

10 Reply by n2ri

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Re: Dual side fans, now with ducts

clearance? how? where is the X carriage motor?

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

11 Reply by AZERATE

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Re: Dual side fans, now with ducts

n2ri wrote:

clearance? how? where is the X carriage motor?

Just confirmed this today...the fans have a low enough profile to fit underneath endstops, carriages, and shouldn't crash into the frame.

Printit Mason and Printit Horizon printers
Multiple SD2s- Bulldog XL, E3D v5/v6/Lite6, Volcano, Hobb Goblin, Titan, .9 motor, Lawsy carriages, direct Y drive, fishing line...the list goes on
Filawinder and Filastruder #1870.....worth every penny!

12 Reply by n2ri (edited by n2ri 2014-11-05 04:23:42)

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Re: Dual side fans, now with ducts

the motor on left X carriage is no more than 1/4 inch higher than print bed at all times during print and only like 1 inch from hotend when its all the way left on my SD2 SD3 must be same as it has larger bed same as frame is larger.

are fans 25mm? nevermind just saw link to specs duh lol. 30mm

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

13 Reply by n2ri (edited by n2ri 2014-11-05 04:14:07)

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Re: Dual side fans, now with ducts

even though 6x6 is big enough for my printing seems the SD3 would be better for adding all the good mods and keep the 6x6 bed.

one question on fans, I have the cooling fan that holds onto acryilic puzzle screws with magnets. can this be modified to be used on the Lawsy mk5?

Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs

14 Reply by Tin Falcon

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Re: Dual side fans, now with ducts

If anyone would like files I can throw them up on thingiverse.

Yes please.
Tin

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

15 Reply by accusedmonk

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Re: Dual side fans, now with ducts

Azerate, would you mind further explaining the change you requested on thingiverse?  You wanted a thicker bottom of the print, as in the part on the build plate or the curved section which is bottom when its mounted?

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

16 Reply by AZERATE

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Re: Dual side fans, now with ducts

I meant the latter...the curved section which faces down when mounted.

Sorry I wasn't very clear smile

Printit Mason and Printit Horizon printers
Multiple SD2s- Bulldog XL, E3D v5/v6/Lite6, Volcano, Hobb Goblin, Titan, .9 motor, Lawsy carriages, direct Y drive, fishing line...the list goes on
Filawinder and Filastruder #1870.....worth every penny!

17 Reply by accusedmonk

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Re: Dual side fans, now with ducts

I figured ha, is it too thin?  Ill fool with it and bulk it up a bit for you.  What extrusion width are you printing at, .7?

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

18 Reply by AZERATE

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Re: Dual side fans, now with ducts

Yup! Thanks for taking the time.

Printit Mason and Printit Horizon printers
Multiple SD2s- Bulldog XL, E3D v5/v6/Lite6, Volcano, Hobb Goblin, Titan, .9 motor, Lawsy carriages, direct Y drive, fishing line...the list goes on
Filawinder and Filastruder #1870.....worth every penny!

19 Reply by accusedmonk

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Re: Dual side fans, now with ducts

Here you go, I made it the width of your extrusion, although slicer wants to make that wall all by itself.  I'm not sure if this will fix your problem but just holler back at me with results and we'll go from there!

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Fan Ducts Thicker.stl 1.51 mb, 11 downloads since 2014-11-10 

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Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

20 Reply by accusedmonk

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Re: Dual side fans, now with ducts

I have went back into this design again, PLA just does not like overhangs.  These are quite a bit more durable, which could be bad if they run into something.  The outlet is quite a bit larger, a little over double the previous.  I noticed in testing an improvement in the overhangs from the previous ducts a decent amount.  Clearance is still fine.  These will print as oriented in the file without supports.

http://i.imgur.com/TJM3tfy.jpg?1

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.