W12 NEC

[jmbfestool]

wow that would take some  thinking to make!    [eek] [eek]

 

[mattfc]

This Fred Perry one is quite interesting
http://cncrouting.co.uk/projects/reception-desk/

 

[Alan m]

wow. those are some cool pieces

 

[jmbfestool]

This Fred Perry one is quite interesting
http://cncrouting.co.uk/projects/reception-desk/

I remember seeing that a while ago.   Its one of the reasons I wanna go for CNC.     bet it aint easy to work out all them pieces for the CNC to cut.

JMB

 

[Alan m]

jmb. it shouldnt be that hard.
model it in 3d (hard part) then set up work planes at set intervals along the piece(thickness of ply  plus gap) then project the cut section  onto that plane , then copy the shape over onto the piece and drill a few locating holes. then sent to cnc, do that for every layer. job done.

it sounds complicated but is fast enough when you get going. routing the parts is the slowest  part.
iv done something similar on a smaller scale using autodesk inventer  and alpha cam

 

[jmbfestool]

jmb. it shouldnt be that hard.
model it in 3d (hard part) then set up work planes at set intervals along the piece(thickness of ply  plus gap) then project the cut section  onto that plane , then copy the shape over onto the piece and drill a few locating holes. then sent to cnc, do that for every layer. job done.

it sounds complicated but is fast enough when you get going. routing the parts is the slowest  part.
iv done something similar on a smaller scale using autodesk inventer  and alpha cam

You will have to teach me lol! 

Ill be trying some thing like that my self when I get one.  Thing is the cost of ply  would be alot!  making something like that you would need birch ply or something like that.

JMB

 

[mattfc]

jmb. it shouldnt be that hard.
model it in 3d (hard part) then set up work planes at set intervals along the piece(thickness of ply  plus gap) then project the cut section  onto that plane , then copy the shape over onto the piece and drill a few locating holes. then sent to cnc, do that for every layer. job done.

it sounds complicated but is fast enough when you get going. routing the parts is the slowest  part.
iv done something similar on a smaller scale using autodesk inventer  and alpha cam

correct, its normally a 3d model sliced, just like doing an MRI scan. Rhino3D is a good app used for these models, though its helps to know abit about the best modelling geometry to get the best outcome from the CNC (e.g. NURBS vs Polygons etc) since 3d models if you check at a high enough resolution can be facetted.

 

[mattfc]

You will have to teach me lol! 

Ill be trying some thing like that my self when I get one.   Thing is the cost of ply  would be alot!  making something like that you would need birch ply or something like that.

JMB

yeah, it looks about 5+ meters long, where its thinner you could probably get away with 1/3 of a sheet, so 5000/18mm ply=277 sheets, 277/3=93 sheets of 18mm ply, so must be about £3k or wood alone!

 

[Deansocial]

7.29m long and over 70 sheets of 10x5. 18mm birch ply. It says due to thickness variations in ply it ended up 120mm short so had to add sections.

 

[Stone Message]

I will expect some interesting things once you take the CNC plunge.. like this desk

Hi Matt

The first thing that came to my mind was - it must be a devil to dust!

Peter

 

[promhandicam]

I will expect some interesting things once you take the CNC plunge.. like this desk

Hi Matt

The first thing that came to my mind was - it must be a devil to dust!

Peter

Just get the airline out  [laughing]

As I understand it, a used  cnc machine can be bought relatively cheaply second hand but the real cost is in the software and training.

 

[Stone Message]

Just get the airline out  [laughing]

As I understand it, a used  cnc machine can be bought relatively cheaply second hand but the real cost is in the software and training.

Got it - so we wait for JMB to put his on ebay in a few months time!

On a serious note...do the CNCs need loads of new sharp cutters for jobs like those shown in the pictures?

Peter

 

[Alan m]

Just get the airline out  [laughing]

As I understand it, a used  cnc machine can be bought relatively cheaply second hand but the real cost is in the software and training.

Got it - so we wait for JMB to put his on ebay in a few months time!

On a serious note...do the CNCs need loads of new sharp cutters for jobs like those shown in the pictures?

Peter

you will obviously start with new sharp cutters but they should last a lot longet then using them handheld because the feed and plunge rates are all computer controlled . the rpm and amount of material removed can the set to suite the cutter and wood being cut.
one of the most important things to do right is build alibrary of cutters. if done right all you have to do is click the cutter and the comuter will know the rpm ect . do it wrong and you will break or wear out your cutters .
dc is very important on a cnc. we had a slicght mishap with the collage cnc. the dc got partially blocked and we didnt know, a lot of crap build up underneth . it blocked the whole system up and ruined the workpiece. the moving parts couldnt move freely enough so the cut was kinda stutered instead of smooth and free flowing.

 

[mattfc]

From the cutters I have seen (looking forward to seeing some of the big Felder Format 4 at W12), the entry heavy duty ones are PCD Polycrystalline Diamond and generally in the £200+ price range, and the serious cutters for production line stuff in the £1k mark

http://www.scosarg.com/cmt-143-router-cutter-pcd-d-22-l-70-s-25-z-30dp-1h.html?___store=default

 

[galwaydude18@gmail.com]

Well JMB how did you cnc venture go?

 

[Deansocial]

Well JMB how did you cnc venture go?

I was gom smacked at the size and complexity of some of the machines

 

[galwaydude18@gmail.com]

I'd say they are pretty cool alright. I worked in a place that had a big 3 axis cnc with a 10 tool holder on it but they wouldn't train me to use it  [crying]

 

[Stone Message]

Well JMB how did you cnc venture go?

I was gom smacked at the size and complexity of some of the machines

The best machine was at the far end of the hall. You place an acorn at the end of the machine and within 3 minutes it has been sucked in, grown to full size, sawn, kiln dried then machined and comes out as dining room furniture! I would have bought one but it was a terrible blue colour.

Peter

 

[galwaydude18@gmail.com]

Lol  [big grin]  [scared]

 

[Deansocial]

Well JMB how did you cnc venture go?

I was gom smacked at the size and complexity of some of the machines

The best machine was at the far end of the hall. You place an acorn at the end of the machine and within 3 minutes it has been sucked in, grown to full size, sawn, kiln dried then machined and comes out as dining room furniture! I would have bought one but it was a terrible blue colour.

Peter

Never have been 1 for blue oak furniture