Messages

21

Show"N"Tell ( Your Machines) / Re: CNC Portable Milling Machine in 15 Days

« on: May 28, 2014, 08:52:03 AM »

Thats a very nice info Zafar... Here is the rough cut at full depth by the machine. 10 degree for 70mm and the remaining is 37.5 degree upto next 20mm. Total depth is 90mm. No blunt of tool, no changing of tool.. No coolant... Almost took 10Hrs...

22

Show"N"Tell ( Your Machines) / Re: CNC Portable Milling Machine in 15 Days

« on: May 27, 2014, 10:02:26 AM »

Really interesting story.. I love the way you described the things...

23

Show"N"Tell ( Your Machines) / Re: CNC Portable Milling Machine in 15 Days

« on: May 26, 2014, 11:15:24 AM »

Here in the picture the 65mm deep slot took 6Hrs of time. Previously manual machining with big steps at 30mm took almost 30Hrs of time and the finish was too much pathetic.. The machine was stopped to lengthen the tool with new tool adapter. As it has rough machining with endmill at 1.5mm stepover so we fine not that good finish at the walls but its okay.. We can run another finish machining using ballnose but we no need to....
The cavity walls are at 15degree upto 70mm depth and the remaining 20mm depth is at 37.5degree.Job in progress.

24

Show"N"Tell ( Your Machines) / Re: CNC Portable Milling Machine in 15 Days

« on: May 26, 2014, 11:04:34 AM »

Machine completed and video of first test run.Here are few picture of 2" x 2" x 20mm deep slot we did with this machine. We have mounted hydraulic spindle maximum 300RPM used 4 flute 19mm end mill. Machining Job took 35Minutes and it was drastically reduced compared to manual machining...
With the passage of time ,The spindle had developed clearances and play in the bearing housing (its an old spindle) which caused some marks on the work piece walls but those are acceptable ...However we are satisfied with the results.. Ahead we are aiming to more rigorous testing on this machine.
https://www.youtube.com/watch?v=RHkk9ji5Tuw&feature=youtu.be

25

Show"N"Tell ( Your Machines) / Re: CNC Portable Milling Machine in 15 Days

« on: May 26, 2014, 11:02:19 AM »

some more progress...

26

Show"N"Tell ( Your Machines) / Re: CNC Portable Milling Machine in 15 Days

« on: May 26, 2014, 10:59:06 AM »

Some progress on Controller box and 400watt servo system by KaraCNC from Mr.Zafar Salam.

27

Show"N"Tell ( Your Machines) / CNC Portable Milling Machine in 15 Days

« on: May 26, 2014, 10:56:34 AM »

Hi All,
Plunged into new adventure for fabrication of CNC Portable Milling/Boring machine from readily available material. I am working in a reputable petrochemical industry. Presently, we have to make a 150 x 80x 90mm deep tappered slots (15 degree draft angle) for repair of a crack. The existing portable machine did good job on a mockup but due to increase in depth and lot of vibration issues the mock-up job completed in 90Hrs. Thats a big downtime for a plant.
This is the time to make a more rigid and efficient CNC machine that may be portable and mounted on a circular shell at any orientation .. The CNC will be added benefit.
Here are some pictures of the build. The Cross slides working area is 200mm and the Z-axes can travel 100mm. I used salvaged Linear rails and ball screws for this. The machine base is not casted but we have used 30mm Carbon Steel plate
We hope that by implementation of this machine we will drastically reduce the time from 90Hrs to 12Hrs or less.

The target completion date was 15days from scratch which we have achieved timely. Zafar Salam installed CNC control system. He will describe further in this thread.

28

General Mach Discussion / Re: Yet again, UC100 issues

« on: February 01, 2014, 08:27:54 AM »

Guys... I am using UC100 with Gecko G540 with success. Initially i was getting trouble at each startup i was having no-connection issues. I resolved in following manner:
1- Scan my computer with Avista antivirus (free edition). Lot of viruses rectified with boot scan.
2- I always start computer first and then i connect the CNC control panel. This way i never got problem with UC100
By the way the controller is great:)

29

Show"N"Tell ( Your Machines) / Re: mach3 3D printer

« on: January 05, 2014, 01:46:05 PM »

wonderful job:)... Thanks for posting..

30

Finished Screens / Re: Mach3 2010 Screenset - Now available

« on: December 31, 2013, 11:43:09 PM »

Thanks Gerry, i dont know why i missed the last tab in the new website of Mach3 ..I got it thanks:)