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Do you mean you are using milling machine end mills designed for metalworking?

Matthew

I'd sincerely recommend looking into secondhand CNCs or PTPs - any industrial machine is WAY heavier than a Warthog or ShopSabre, has heavier duty spindles and will come with a competent...

Seen the Carter Flip-Pod system in the USA. Looks good, but does rob quite a bit of Z-axis movement. Also my exerience is that the pods are only availale in multiples of 100 (at multiples of around...

Well, they do allow you to change the bit quickly, but they still don't give you a Z-axis datum which I thought was part of the question

The industrial ones require both compressed air and vacuum. Pull-up is done using a tapered tool holder which in turn has a collet to hold the tool. At the top of the tool holder is a pull-stud. You...

Hi Kong

What Laff Riot was saying about "depth stop" cutters - well I've heard these referred to as Leuco cutters (they are somewhere in Essex, BTW) and you'll find people like Titman Tip Tools in...

I have to admit that I'd probably write a parametric program in G-code, after all, how many door shapes can there be? This may be a bit cruder, but if you're in for the long haul....

I suppose...

Jennifer

The other thing about aggregate heads is that they soak-up power, so a 7.5HP spindle with a 90 degree aggregate is really struggling (our Biesse with HSDs does, anyway). Nicest aggy heads...

Sorry to rain on your parade ;) , HuFlungDung, but in the UK (as for Germany) there is an official reseller - you'll find the details on the OneCNC website . The UK guy used to sell BobCAD here so...

Hi Andy

I'm about 25 or so miles from you going towards Manchester. If you want off the shelf router cutters for wood/plastics I'd try (Carbide UK in Hull on 01482 227234 - they are a trade...

The biggest problems you are going to have are melt- or weld-back and polymer memory. Melt-/weld-back is where the chips weld themselves back onto the stock material because they are so hot. Polymer...

Hi Guys

Thanks for your very helpful input. The UK distributor has already talked to OneCNC in the States about my "peculiar" requirements. They see no problem in supplying either a post processor...

Thanks for all the input guys. I currently need to use VB script externally to BobCAD in order to accomodate some of the peculiarities of the CNI RT480 controller on my machine. It needs a...

Hi

I am a somewhat unhappy user of BobCAD 18 in a woodworking environment (not all of us can afford CabnetVision) and I wondered how difficult it would be for someone like me to X-grade to OneCNC?...

Does this mean that suport for version 18 will cease?

I can imagine this the other way round, sort-of, i.e. a cavity with a hole in the top where the ball is held against the opening by a weak spring. The spring would need to be strong enough to...

Yep, pretty much. My set-up pulls 100/120 cubic metres per hour at present (depends on whether or not the phase inverter is in-line) from a 3kW(4HP) Becker unit. The point about going to a matrix is...

Well I've now built a test piece of matrix bed. It comprises a 32mm (1-1/4in) thick harwdood plywood underside support for ridgidity with a 25mm (1in) high density polyethylene top screwed on. I...

This morning I installed three manual blast gates on the spindle extraction and replaced two (out of three) sets of dust boot brushes. The old ones didn't look too bad, but they were rather stiff...

I'm now convinced that the problem isn't air flow. It's design. The gantry has four 120mm hoses and an 80mm hose feeding into a single 225mm hose via a 5-way manifold. This means that at the point at...

Each of the router spindles has a 4in brush "skirt" around it, which I replaced this morning - made a bit of a difference, but not as much as I'd hoped for. There is a 120mm flexible hose take-off on...

OK guys. Anyone got any suggestions about how to improve dust extraction on our PTP router? All suggestions gratefully recieved (well, almost)

I run the same sort of thing. Biesse Rover 335 - 24 vertical/8 horizontal spindles and three router spindles.

Hmm.... I think I'd prefer to describe it this. A PtoP CNC router is the offspring of a PtoP drilling machine - a multi-headed CNC drilling machine designed to drill cabinet sides (32mm system)...

The tooling people use CBN wheels - steel wheels with diamond attached in what I believe is a sintered coating. Not cheap! We have a couple (made by Norton) for doing profile grinding

Then no one has told either Biesse or Morbidelli about that! The technique used on many of their machines (including ours) is to use an "air cylinder". This uses compressed air to act like a damper...

HomeCNC your vacuum pump won't need a vacuum reservoir unless it is a very low capacity pump. What it will need, however is a vacuum filter on the machine (workbed) side of the pump. This stops the...

OK. Real world scenario. At work I run a Biesse Rover 335 CNC PTP router (a cross between a point-to-point borer and a CNC router). The gantry design is cantilevered and depends on having the base of...

So in that case is it applicable to plastics and composites? Especially as for best finish quality we generally have to rough to +0.5mm then do a full depth finsh cut.

This sounds a bit like the sort of technique we use for machining certain plastics, notably HDPE and certain nylons. REDUCED spindle speed (10,000 to 12,000 rpm or even slower), three or even four...