Apollo Construction Diary - Page 23

ShinOBIWAN · 8th February 2012, 06:20 PM

Quote:

Originally Posted by sploo

I'd expect it was causing the panels to vibrate/resonate, and basically acting like speakers!

I suspect so too. Maybe one day I'll get the chance to replace with something more substantial but for it serves its purpose now that the noisy stuff has been moved into the new place.

Quote:

You may well find that the dust enclosure will trap a lot of the sound pressure, such that it won't be too bad outside.

I hope so. If it does turn out to be excessive then there's way to control it further.

ShinOBIWAN · 8th February 2012, 06:23 PM

Quote:

Originally Posted by Mark_A_W

Ant, why can't you turn the CNC so the main doors open towards the garage door?

Then you can waltz a big sheet straight in.

That way is more efficient for loading and unloading but it also take up more space as you have to move it into the middle of the room so as to make sure you can still get in at the back.

I've tried all sorts of which ways using the floor plan and what I've got is the most efficient use of the space if not the most practical.

ShinOBIWAN · 8th February 2012, 06:24 PM

Quote:

Originally Posted by badman

Are you going to be using one of the small flange neo domes from ScanSpeak etc? If so, probably want to pull the dome closer to the midwoof.

Its a D3004 which has a 104mm diameter faceplate. The drivers are within a couple of mm.

ShinOBIWAN · 8th February 2012, 08:02 PM

The cnc has been delayed because the control box still needs wiring and then testing. Its now going to be sometime next week. Shame, I was looking forward to playing.

They've sent a few more images which shows the machine is pretty much complete.

I've also designed a simple mitre saw trolley constructed out of 40x40mm alu extrusion. Should be an easy but very sturdy build. The whole thing is on casters too because with a small workspace its important to keep things flexible for when you need that little extra room.

Parts sourced from these guys: Valuframe - Aluminium Extrusions > Aluminium Profile > Aluminium Extrusion > Aluminium Profiles >Aluminium Profile Systems

sploo · 8th February 2012, 09:17 PM

Sorry to hear the machine is delayed. Looking good though. Well, the machine looks good. You'd think with that level of tech they'd be able to afford a decent camera to take pics to send to customers

.

Trolley looks good - and thanks for the link - I've been looking for a decent supplier of extrusion material. Are the prices ok?

ShinOBIWAN · 8th February 2012, 09:50 PM

Quote:

Originally Posted by sploo

Sorry to hear the machine is delayed. Looking good though. Well, the machine looks good. You'd think with that level of tech they'd be able to afford a decent camera to take pics to send to customers

.

Thanks. Oh and I blame those damn smart phones, the camera's in the lot of them are junk

Quote:

Trolley looks good - and thanks for the link - I've been looking for a decent supplier of extrusion material. Are the prices ok?

From the few places I found online they were the cheapest. You have to sign up on their website to get the price list and catalogue. There's a lot of stuff in there but to give you an idea the 40x40mm is £8.55+VAT per meter and the 80x80mm is £28.59+VAT/m. They'll cut the stuff to length(£0.99-£2.95 a cut) and even tap holes(£2.34 a go) although this is expensive if your having more than a few cuts done and would work out much cheaper if you do it yourself.

ShinOBIWAN · 10:15 AM

I've been thinking some more about keeping down the dust and from reading around the web I don't think my current extractor is going to be up to the job. Its rated at 1000m3/hour and was recommended by the place that sold me the table saw. But reading in between the lines its never going to supply that air flow and so within a ducted system, and if you took care to minimise leaks, you'd expect that figure to drop by around a quarter. That isn't much at all when your talking about a table saw or router. Folks with fancy manometers are recommending upwards of 1500m3/hour actual air flow for table saws - about twice as much as I currently have.

Another complication I've stumbled upon is the table saw is ideally suited to a high volume low pressure type of extractor. These are generally the blower models and move lots of air but more gently. And the router definitely needs to get stuff away as fast possible so a low volume high pressure vacuum type extractor would be better.

Axminster have a large range of machines so I rang them up and asked for their advice on what that would be suitable for both the table and the router. They came back at me with this suggestion:

Buy Numatic NVD750 Workshop Vacuum Extractor from Axminster, fast delivery for the UK

However I'm somewhat confused. The specs state air flow is rated at 350m3/hour although the pressure would be much higher than my current unit because that particular model is a vacuum type rather than a blower. It looks fine for the router but surely not for the table saw? I'm confused

I figure this machine I already have isn't going to pick enough up for my liking but instead of going out and risk buying another turkey could those in the know suggest a suitable unit for what I'm wanting to do?

Budget is £400 but would be great to come in under this.

Edit: Relatively low noise would be big bonus too

ShinOBIWAN · 10th February 2012, 10:11 AM

FYI my current extractor is the DC1000 on here:

John Sheerin · 10th February 2012, 02:44 PM

If you've never read it before, Bill Penz's site might be of help: Bill's Cyclone Dust Collection Research - Home Page The executive summary is something like: small dust collectors that don't move enough air work for chip collection but leave fine dust in the air which can cause serious health problems.

I'm eventually planning on buying one of the Clearview cyclones for my router. We had a pair of them in the shop at my last job and they were nice. They're around triple the air flow of your current model, but also more expensive it looks like.

ShinOBIWAN · 10th February 2012, 03:15 PM

Hi John

The cyclone type do look ideal however they're way beyond my budget. They start at £1500 and go up to £££. I've got £400 max and risk loosing valuable man appendage if I spend more

This is about the cheapest I could find new:

Buy Axminster Industrial Series UB-2200VECK Cyclone Extractor from Axminster, fast delivery for the UK

Maybe something will come up on ebay but its not really a common item and I could be waiting a long time.

I do understand what your saying about fine dust getting kicked back out the filters and into the air. Its a real problem with MDF. But you can get fine filters that work down to as little as 0.2microns which will prevent that.

10th February 2012, 10:08 AM	#227
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	I've been thinking some more about keeping down the dust and from reading around the web I don't think my current extractor is going to be up to the job. Its rated at 1000m3/hour and was recommended by the place that sold me the table saw. But reading in between the lines its never going to supply that air flow and so within a ducted system, and if you took care to minimise leaks, you'd expect that figure to drop by around a quarter. That isn't much at all when your talking about a table saw or router. Folks with fancy manometers are recommending upwards of 1500m3/hour actual air flow for table saws - about twice as much as I currently have. Another complication I've stumbled upon is the table saw is ideally suited to a high volume low pressure type of extractor. These are generally the blower models and move lots of air but more gently. And the router definitely needs to get stuff away as fast possible so a low volume high pressure vacuum type extractor would be better. Axminster have a large range of machines so I rang them up and asked for their advice on what that would be suitable for both the table and the router. They came back at me with this suggestion: Buy Numatic NVD750 Workshop Vacuum Extractor from Axminster, fast delivery for the UK However I'm somewhat confused. The specs state air flow is rated at 350m3/hour although the pressure would be much higher than my current unit because that particular model is a vacuum type rather than a blower. It looks fine for the router but surely not for the table saw? I'm confused I figure this machine I already have isn't going to pick enough up for my liking but instead of going out and risk buying another turkey could those in the know suggest a suitable unit for what I'm wanting to do? Budget is £400 but would be great to come in under this. Edit: Relatively low noise would be big bonus too Last edited by ShinOBIWAN; 10th February 2012 at 10:15 AM.

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8th February 2012, 09:17 PM	#225
sploo diyAudio Member Join Date: Mar 2007	Sorry to hear the machine is delayed. Looking good though. Well, the machine looks good. You'd think with that level of tech they'd be able to afford a decent camera to take pics to send to customers . Trolley looks good - and thanks for the link - I've been looking for a decent supplier of extrusion material. Are the prices ok?

10th February 2012, 10:11 AM	#228
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	FYI my current extractor is the DC1000 on here:

10th February 2012, 02:44 PM	#229
John Sheerin diyAudio Member Join Date: Nov 2003 Location: Pittsburgh, PA	If you've never read it before, Bill Penz's site might be of help: Bill's Cyclone Dust Collection Research - Home Page The executive summary is something like: small dust collectors that don't move enough air work for chip collection but leave fine dust in the air which can cause serious health problems. I'm eventually planning on buying one of the Clearview cyclones for my router. We had a pair of them in the shop at my last job and they were nice. They're around triple the air flow of your current model, but also more expensive it looks like.

10th February 2012, 03:15 PM	#230
ShinOBIWAN diyAudio Member Join Date: Feb 2004 Location: UK	Hi John The cyclone type do look ideal however they're way beyond my budget. They start at £1500 and go up to £££. I've got £400 max and risk loosing valuable man appendage if I spend more This is about the cheapest I could find new: Buy Axminster Industrial Series UB-2200VECK Cyclone Extractor from Axminster, fast delivery for the UK Maybe something will come up on ebay but its not really a common item and I could be waiting a long time. I do understand what your saying about fine dust getting kicked back out the filters and into the air. Its a real problem with MDF. But you can get fine filters that work down to as little as 0.2microns which will prevent that.