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Hi, The starturn is a CNC lathe from the 1980`s just converted to run on modern electronics. There is a belt drive from the motor to the spindle with no additional gearing. During the conversion I...

The drive is a toothed belt to the ballscrew and the pitch of the ballscrew is 2.5mm. I`m microstepping so I dont think I would see the steps in the surface finish. I just squirt on the coolant with...

I put in a little more time on the lathe tonight. I figured I would check my mechanics better before going any further. putting a dial gauge on the tool holder I was getting movement when I rocked...

Hi, Thanks for the reply!

I think I confused matters a little....I`m not parting off the workpiece I`m just facing the surface of some 30mm diameter bar. Taking cuts of about 0.05mm

I have a small cnc lathe (denford starturn 4) in my home workshop and have converted it to run on mach3 and so far quite happy with the accuracy the machine offers on small aero modelling parts.
...

Hello, Does anyone know of a person in the UK willing to CNC machine aluminium parts for a helicopter rotor head design I have?. Parts would be made from 7075-T6

I`m looking for someone who does...

arh ok...the tabs I put in on my cad software. The step four cnc software does not include a feature to add tabs so I put them in manually.

The cutter you are using, is that more for completely...

I`m using a Step Four basic 1000 for my milling and general cnc routing. What do you mean by tabbing?

I`m not sure what rotorzip is, is that like dremel? Have you got a link to the cutter so I can...

Hi Guys,

What is peoples opinion on the best milling cutter/burr for milling depron foam?

I have done a few cuts with a Diamond burr and results are ok. Just wondering if there is anything...

hi, thanks for the reply....floating design office sounds cool.

I think my problem may be with the monitor and/or driver, its a strange shape, its on a comp we dont use much so not a major problem...

hi all, just installed solidworks 2008. When I select "shaded with edges" the edges are very thick lines, also when in sketch mode the lines of very thick too. Tried adjusting line weight settings...

Hi, Put some pics on of the models you have.

Mike

Hi, I cant give the cnc files out because I didnt design it, sorry. I just cut them out.

Here are some pics of the latest depron foam jobby cut on my cnc.

http://www.3drc.info/3drcdb/viewtopic.php?t=2381

movie link: http://www.youtube.com/watch?v=-rTlteMYkPE

Etienne, Your cnc cutting and moulding is excellent well done! Nice web site too. I look forward to the English version.

I have a similar cutter to yours, but I have not used it yet. After seeing...

A 2mm up/down shear cutter would be nice! I remember the short time when I worked as a cnc router operator. Working with laminates/worktops e.t.c. When we started using up/down shear cutters it was...

Oops sorry, wrong picture of the cutter, the cutter I am using is down cut.

The furry edge, looks to me like material that has not been completely cut and folded under the cutter, if this fury...

Here is a close up pic of the end grain. I think the furry edge probably makes it look worse than it is, cuts along the grain are clean.

The cutter is a Trend 2mm diameter solid carbide mini down...

Hi, Thanks for the advice everyone. I tried climb cutting today and the finish is much better, although a bit more furry on the lower edge.

Ron, if my conversion is correct 45-60 IPM is 1143 -1524...

I shall try it tomorrow and see what happens.

Thanks for info

Mike

cutting along the grain, the finish is perfect, as soon as the cutter moves across the grain, like a corner with a radius the wood begins to split.

I have only tried conventional cutting, the...

Hi, Thanks for the reply. I havnt used straight flute cutters before, I have just been looking at the Titman website, would you recommend single flute or double flute cutter.

Thanks

Mike

Hi All, I have been using my step4 basic 1000 cnc router with excellent results mostly on ply, depron and lite-ply(for model aircraft use). I have recently been experimenting with balsa and have...

Hi, I have been using trend cnc mini spiral downcut cutters for most of my cutting, (model aircraft bits). The most popular cutter I use is the 2mm diameter cutter with a 6mm cut depth. This causes a...

Hi, I think I have found the source of my problem, which I think is what fyffe555 is talking about.

The software is running at 800 x 600, therefore on my 1024 x 768 laptop the display is small. I...

Yes, all the text that comes up when the computer boots up is also confined to the center. Could different drivers for the display solve the problem?

Mike

The software I am using is made by step four called S4PRO. You get it with the cnc router, nice software, I just have this screen problem to clear up.

Mike

HuFlungDung, via the properties menu, the advanced program settings were adjusted to specify a new dos configuration as outlined in the manual for the cnc software, they now read as follows:
...

once the software loads in the real dos mode the screen is very small. It is not a window as they appear in windows, I just used this to describe how the software looks when it is running, i.e the...

Thanks for the reply, the program is set to reboot the computer once it is selected. When the words come up on the screen saying that the computer is starting the ms dos application e.t.c, they all...