Search found 78 matches

by PhilipTrueman
Sat Apr 13, 2024 1:23 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Hitachi Seiki HT 20S ii cnc lathe
Replies: 0
Views: 28

Hitachi Seiki HT 20S ii cnc lathe

Has anybody converted a Hitachi Seiki HT 20S ii cnc lathe to Centroid?
by PhilipTrueman
Tue Apr 09, 2024 3:48 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Hardinge T42 conquest
Replies: 0
Views: 75

Hardinge T42 conquest

Has anybody converted a Hardinge T42 Conquest with sub spindle? Does Centroid software support sub spindles?
by PhilipTrueman
Sun Mar 31, 2024 5:29 am
Forum: Centroid Acorn CNC Controller
Topic: Can't add negative number to Low Range Spindle Speed RatioRatio <milling machine as a lathe, resolved>
Replies: 47
Views: 953

Re: Can't add negative number to Low Range Spindle Speed RatioRatio

The Wizard evidently does not allow you to have a low-range ratio that is slower than the medium-range ratio. Do you really have a medium range with 100:1 reduction? Hi I have a medium speed range which in the manual is an M42 for the g code. Can you tell me why the g code doesn't recognise the M42...
by PhilipTrueman
Sun Mar 31, 2024 5:24 am
Forum: Centroid Acorn CNC Controller
Topic: Can't add negative number to Low Range Spindle Speed RatioRatio <milling machine as a lathe, resolved>
Replies: 47
Views: 953

Re: Can't add negative number to Low Range Spindle Speed RatioRatio

Does the rpm read normal + number before you start adding the figures in the MED LOW fields?
I have my medium field set to 0.6 to read the correct figure.
If your speed is still reading a negative number try removing the negative from the encoder counts field.
by PhilipTrueman
Sat Mar 30, 2024 11:38 am
Forum: Centroid Acorn CNC Controller
Topic: Can someone give me a hand with Intercon Lathe Chamfers?
Replies: 13
Views: 1663

Re: Can someone give me a hand with Intercon Lathe Chamfers?

Hoping to get some guidance on how to program a chamfer with Intercon. I’m using intercon for this operation and I do not understand the chamfer screen. I’ve read the manual. It doesn’t have much to say, nor does the help screen. I was told it’s not really a conversational screen which confuses me ...
by PhilipTrueman
Sat Mar 30, 2024 10:27 am
Forum: Machining Strategies. Work Holding, Tool Path, Cutters, Feeds/Speeds etc.
Topic: CNC lathe Dealing with long chips
Replies: 3
Views: 251

Re: CNC lathe Dealing with long chips

Increase the feedrate or the depth of cut to make chips break. I tried increasing the depth of cut to 2mm off the diameter but it just tears the chips but still doesn't break the chips. I tried increasing the feedrate but it is still the same. I just set the feedrate to what it reccomends on the ca...
by PhilipTrueman
Fri Mar 29, 2024 3:34 pm
Forum: Machining Strategies. Work Holding, Tool Path, Cutters, Feeds/Speeds etc.
Topic: CNC lathe Dealing with long chips
Replies: 3
Views: 251

CNC lathe Dealing with long chips

I had a job turning some parts made from 6082 T6 aluminium. The part was 90mm in diameter. The problem was after about 3 passes 30mm long, the turnings would get caught in the chuck jaws and i would have to stop the program and remove the swarf then start where the program stopped. I thought it woul...
by PhilipTrueman
Wed Mar 27, 2024 5:13 am
Forum: Centroid Acorn CNC Controller
Topic: Program eratic after a tool change Lathe <resolved. CSS was too high>
Replies: 26
Views: 778

Re: Program eratic after a tool change Lathe

The problem was that the CSS was too high and it was throwing an error because it couldn't achieve the speed. Back to work making some parts. Thealuminium is 6082 T6 the large diameter is 90mm and the bottom of the groove with 2mm radius in the corners is 50mm. All dimensions were within 0.01mm Only...
by PhilipTrueman
Sun Mar 24, 2024 12:44 pm
Forum: Centroid Acorn CNC Controller
Topic: Program eratic after a tool change Lathe <resolved. CSS was too high>
Replies: 26
Views: 778

Re: Program eratic after a tool change Lathe

One thing that doesn't happen is that the spindle doesn't change speed as the tool goes to a smaller diameter. Marc already explained this. At 1000 meters/min, you are already at your max rpm at the stock diameter. There is no way for the spindle to increase any more when the part gets smaller. Tha...
by PhilipTrueman
Sun Mar 24, 2024 5:40 am
Forum: Centroid Acorn CNC Controller
Topic: Program eratic after a tool change Lathe <resolved. CSS was too high>
Replies: 26
Views: 778

Re: Program eratic after a tool change Lathe

Problem solved. Fixed the cnc lathe. In the spindle setup wizard the setting was set to G98 as default instead of G99 feed per rev. I have just run a quick facing and turning program with 4 tool changes then run the program 3 times without re homing. And it run perfectly. I changed the setting in th...