Author: Jean Chagas Vaz Email: chagasva@gmail.com
Date: Last modified on 04/20/2017

Keywords: Diary, Report,

This page is intend to register the weekly progress of the CNC Shop activities.

Setting up the CNC Machine properly is very important. In order to safely turn the CNC machine on follow the steps below:

* 01/26/2017 09:00AM to 11:00AM

-Setting up the machine;
-Create a inventory of tools in the machine shop;
-Develop a G code to flat a wood part using a flat mill, in other words produce a full flat surface on the wood block using a 1/4'' flat mill.

Things to do by next section:
- Try to find some cut'offs
- Study the G code created during this section
- Ask for the Mastercan UNLV licence (Talk w/ Dr Oh regarding this matter)
- The doors of the machine were not properly installed (need to be fixed)

Problems:
- The coolant must be bought!
- Aluminium cut-offs must be inquired!
- Buy some extra equipament to safely operate the machine
- The doors of the machine were not properly installed (need to be fixed)

* 01/31/2017 09:00AM to 11:30AM

-Flat a surface using a composite wood (4“ by 3”)( This time we reached a high precision surface);

-Work in a profile 2“ by 1” at the center of the wood block with a 0.375 angle;

-Use the fly cutter.

Things to do by next section:
- Get Aluminium the cut'offs
- Study both G code created during this section
- Try to cut profile+pocket
- Continue learning Cam on Fusion 360

Problems:
- We still have no coolant !
- Aluminium cut-offs must be inquired!

* 02/02/2017 08:50AM to 11:45AM

-Flat a surface using Aluminum

Things to do by next section:
- Try to cut profile+pocket
- Desing the first part using Cam on Fusion 360

Problems:
- We need more coolant !
- Buy some extra equipment!

* 02/06/2017 09:00AM to 11:10AM

-Prepare the coolant to add in the machine;
-Facing with 3/16“ end mill using 5000RPM and feedrate of 200 /mim

-Removing tool marks using using the fly cutter plus the coolant

Things to do by next section:
- Measure the precision of the flat surface using the Dial gauge and edge gauge.
- Profile a rectangle on Aluminium

Problems:
- We need to buy parallel bars ASAPin order to proper set the parts on the vice !
- The machine is leaking on the left back side due improper installation!
- Change the manual doors.

* 02/07/2017 08:50AM to 11:20AM

-Measure the accuracy on the milled surface produce in the previous section;
* Dial Gauge

* Edge Gauge

- Profile a rectangle on Aluminium using 5000RPM and feedrate of 200 /mim

Things to do by next section:
- Pocket the Aluminium.
- fix the leakage with silicone

Problems:
- Tools are diapering from the machine shop (Start to label the machine shop essential equipment

* 02/09/2017 08:55AM to 11:10AM

-Mill a 1 by 1” pocket on a 1.5“ by 1.5” profile use a 3/16“ HSS end mill;

- Pocket a rectangle on Aluminium using 5000RPM and feedrate of 200 /mim
- The second run was also unsuccessful, due bad reference values.

Things to do by next section:
- Again try to make a pocket the Aluminium.(NOW MAKE SURE TO TRY OUT WITH THE VICE UP A LITTLE)
- Rearrange the Fusion 360 program.

Problems:
- because of the high feed-rate of 200 the end mill broke

* 02/14/2017 08:45AM to 11:23AM

-Use the edge finder to verify how parallel the surface is. We found a ten thousandth of inch precision.

- We were using the fly cutter improperly. The right position of the tool is shown below

- Use a new software to estimate the right feedrate speeds.

Things to do by next section:
- Finish a precise profile and a circular pocket

Problems:
- ALWAYS MAKE SURE TO TRY OUT THE CYCLE AT A HIGHER Z POSITION FOR A SAFETY TRYOUT.

* 02/16/2017 08:55AM to 11:10AM

- Make a circular pocket with 0.01 of precision

- Prepare the Aluminium block to finally use fusion 360 G code to machine a pre-design part.

Things to do by next section:
- Go to local market to but extra drills

Problems:
- USE THE SMOOTH MALLET TO remove the tool from the spindle