Messages

11

Feature Requests / Re: POLL: Mach3 Lathe and G70/G71/G72 roughing, facing, finishing

« on: September 24, 2008, 03:26:11 AM »

I agree G70 G71 G72 is a must for lathe programming

12

Show"N"Tell ( Your Machines) / Digitizer Conversion

« on: September 21, 2008, 02:11:40 PM »

Hi All

Here is a digitizer that I purchased in the 1990's. Unfortunately the computer that had the drive card (Galil DMC 630) and dongle that drove the software was stolen from my factory. The card could have been replaced but the software that was supplied by Renishaw was prohibitively expensive +- 8000 British pounds.

I now intend to turn it into a router to make patterns for my foundry.

I will fit a new Z axis to the machine on which I will mount a 1kw Highspeed electric Router. The motors which are dc servo are most probably  0.375 kw they are quite small and fit in the palm of my hand.

My question is are these motors big enough to drive a 1Kw Spindle considering that I would only be taking a small depth of cut  +-3mm at a time.

13

Show"N"Tell ( Your Machines) / Re: Benny's Vac Forming machine (Work log)

« on: May 11, 2008, 02:57:07 AM »

ynneb

The pump you show in the photo is a Blackmere 2" or 2 1/2"  Truck pump this pump was designed to pump fluids. The pump uses vanes to do the work and in its original state,running this pump dry would not be a good idea, however someone may have converted the vanes from a dura vane plastic to a carbon vane in which case it would work as a vacuum pump. The conversion would also have to have included some type of shaft seal.

Vane vacuum pumps have their limitations, in this case it would be both volume and vacuum. Volume because there are no published curves for this pump. Vacuum  as in the pump would be limited to +- 65 Kpa Gauge at sealevel because of the vane construction. Also the vanes in these type of pump wear over time and then a rebuild has to take place. Also these types of pumps generate quite a bit of heat.

Does the pump have a system that drips oil into the pump body to lubricate the vanes.
What is the pump speed.

I have a company that manufactures vacuum pumps www.hivaceng.com, if you need any help or have any question give me a shout hivaceng@mweb.co.za

Regards

Scott