Replacement extraction fan

Hardware settings, adjustments and fixes and other hardware discussion. This includes the "doHICky" Laser Power measurement system by Russ.
Post Reply
User avatar
Ian Bell
Posts: 163
Joined: Sat Nov 19, 2016
Location: Bangor, N. Ireland

was working on the laser tonight, then I heard the extractor fan drone, slowing down.

I have it stripped and suspect one of the bearings, evidence of grease coming through the shield.

It was never a great fan, I had to seal the metal housing as it leaked extracted air into the room ... fumes all round :-(

I may repair it to get me back up and running temporarily, but interested in whats available as a replacement, so looking for advice:

label:
chinese-fan-motor-(Small).jpg
You do not have the required permissions to view the files attached to this post.
Location: Bangor
Country: N. Ireland
Nickname: Ian
Laser Machine: Red/Blk Chinese import (Redsail clone ?)
Power: 80w
Bed Size: 500x700mm
Home: TR
Status: operational
RDWorks Version: V8.01.22
Windows Version: 10
Top
User avatar
Gene Uselman
Posts: 2180
Joined: Thu Jul 07, 2016
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: QC
Laser Power: 130W
Laser Bed Size: 900x1300
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
LightBurn Version: Latest
Ruida Controller: RDC6442
Windows Version: Win 10 Pro
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, PrusaMK4 and Mini Prusa printers.

Is this a snail shell shape fan? I am still using my original 550W snail fan after 3+ years [of heavy use] , altho I stripped it down and cleaned out a lot of sticky debris not long ago.
Exhaust blower after 3 years.jpg
You do not have the required permissions to view the files attached to this post.
If the Help and advice you received here was of VALUE...
Please consider making a donation to maintain the RDWORKSLAB Forum.


The days that I keep my gratitude higher than
my expectations, Well, I have really good days.
Ray Wylie Hubbard- unfortunately deceased
Top
Doug Fisher
Posts: 206
Joined: Sat Aug 20, 2016
Location: Atlanta, Georgia
Country: USA
Laser Machine Make or Type: Ke Hui KH-7050
Laser Power: 80W EFR F2
Laser Bed Size: 700x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: v8.01.18 & 8.01.33
Ruida Controller: RDC6442
Windows Version: 10
Accessories: Ruida RDC6442G EC controller, 2" lens, S&A CW5000 chiller, chuck type of rotary attachment, Russ' DoHickey (sp?), mA meter, a growing collection of tools and oddities to keep it running!

A number of us have bought replacement units off of Amazon. There are quite a few similar units marketed under multiple names that have around 440 cubic feet a minute ratings that work well and are reasonably priced. These are so much quieter and use a lot less electricity. They also generate less heat.
Top
User avatar
Ian Bell
Posts: 163
Joined: Sat Nov 19, 2016
Location: Bangor, N. Ireland

@Gene

Yep it's similar to that one, but nowhere near as mucked up.

I stripped mine all down, and replaced one of the bearings in the motor, it had a bit of float. Job done, back to life again

@Doug

Any chance of a link or description in case mine decides to die again.
Location: Bangor
Country: N. Ireland
Nickname: Ian
Laser Machine: Red/Blk Chinese import (Redsail clone ?)
Power: 80w
Bed Size: 500x700mm
Home: TR
Status: operational
RDWorks Version: V8.01.22
Windows Version: 10
Top
Doug Fisher
Posts: 206
Joined: Sat Aug 20, 2016
Location: Atlanta, Georgia
Country: USA
Laser Machine Make or Type: Ke Hui KH-7050
Laser Power: 80W EFR F2
Laser Bed Size: 700x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: v8.01.18 & 8.01.33
Ruida Controller: RDC6442
Windows Version: 10
Accessories: Ruida RDC6442G EC controller, 2" lens, S&A CW5000 chiller, chuck type of rotary attachment, Russ' DoHickey (sp?), mA meter, a growing collection of tools and oddities to keep it running!

This is the one I bought but lots of different companies make something similar. The fake leatherette cover does actually help contain leaks. Note there are models that come with and then without the variable speed controller. To me, it has been worth it to pay a few dollars more and have the variable speed function, particularly in the winter when I am cutting something that doesn't need maximum draw. I can turn the speed down and thus suck out less of the $$ heated air in the room.

https://www.amazon.com/VIVOSUN-Inline-V ... 90&sr=8-10

I have two of the big squirrel cage fans that still run fine but it was worth it for my sanity to buy the quieter fan. The ad says 50 db yet I think I measured in the low to mid 60's with an app on my phone. That was still around 10-12 db less than the gray squirrel cage fan. At 115 watts, it uses less than 1/5 the power of the squirrel cage fan so it has probably paid for itself.
Top
User avatar
Gene Uselman
Posts: 2180
Joined: Thu Jul 07, 2016
Location: Suburban Minneapolis, Minnesota, US
Country: USA
Nickname: Gene
Laser Machine Make or Type: QC
Laser Power: 130W
Laser Bed Size: 900x1300
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: RDw .19 & Lightburn
LightBurn Version: Latest
Ruida Controller: RDC6442
Windows Version: Win 10 Pro
Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, PrusaMK4 and Mini Prusa printers.

That is very similar to the one I bought for my daughters machine and it does the job for her- much quieter too . Her cutting bed is a different design and is much more efficient at clearing the smoke IMHO.

[attachment=0]Automation tech bed design.jpg[/attachment]
You do not have the required permissions to view the files attached to this post.
If the Help and advice you received here was of VALUE...
Please consider making a donation to maintain the RDWORKSLAB Forum.


The days that I keep my gratitude higher than
my expectations, Well, I have really good days.
Ray Wylie Hubbard- unfortunately deceased
Top
User avatar
Ian Bell
Posts: 163
Joined: Sat Nov 19, 2016
Location: Bangor, N. Ireland

@Doug

Cheers Doug, thanks for the link, I had looked at similar, but wasn't sure if they were suitable.

@Gene

My cutting bed is honeycomb, I use small packers below the material to try and help with airflow. When cutting faced mdf I still end up with a LOT of smoke residue when cutting through
Location: Bangor
Country: N. Ireland
Nickname: Ian
Laser Machine: Red/Blk Chinese import (Redsail clone ?)
Power: 80w
Bed Size: 500x700mm
Home: TR
Status: operational
RDWorks Version: V8.01.22
Windows Version: 10
Top
Doug Fisher
Posts: 206
Joined: Sat Aug 20, 2016
Location: Atlanta, Georgia
Country: USA
Laser Machine Make or Type: Ke Hui KH-7050
Laser Power: 80W EFR F2
Laser Bed Size: 700x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: v8.01.18 & 8.01.33
Ruida Controller: RDC6442
Windows Version: 10
Accessories: Ruida RDC6442G EC controller, 2" lens, S&A CW5000 chiller, chuck type of rotary attachment, Russ' DoHickey (sp?), mA meter, a growing collection of tools and oddities to keep it running!

No way around it, MDF produces a lot of smoke and residue!
Top
Post Reply

Return to “General Hardware”