Sunday,21-February-2016

Mazak Variaxis 500 Z axis problem-FIX

EN - If you own, or use Mazak Variaxis 500-5AX maybe hit the wall with one quite strange problem - if you work with Z axis lowered down close or after the table center sometimes you`ve got “overload Z” alarm. In our case was profile tool about 20mm taking no more than 1-2mm. In the time of the problem machine was still under guarantee but replacing servo block, setting lower speed in parameters and so on didn`t bring constant problem remove.
The solution was really strange - just zip tie the back response plug to be sure is not vibrating. I suspect high frequency signal going with error check and small vibration make the contacts to loose grip for ms or something like that.
Anyway, using that small “cheat” and you`ll get rid of the problem (about 8years with no such)
cnc_variax_1.jpg cnc_variax_2.jpg

Saturday,26-December-2015

CNC-router Project II

EN That are only 3D model and rendering of my next project idea of small engraving machine. Hope to build it, and as source for parts my plan - openbulid. That website offer not so expensive parts for that kind of “Lego for adults”

router0.jpg
router1.jpg router2.jpg router3.jpg
router4.jpg router5.jpg router6.jpg

Monday,15-December-2014

My CNC (ex)router

My project began just as most - from having fun of drawing

3d.jpg

I found some material in internet and check others projects. Well, it turn to not be the breaking bone practice so i deside to order parts and to give it a try.
[Read More…]

HEIDENHAIN iTNC 530 elipse

Within the manual you can find the original version of that idea, but i decide to reduce it and rewrite it. Few changes and you can get it to be produced in desired direction as left2right or right2left, inside or outside.

0  BEGIN PGM elipsa MM 
1  BLK FORM 0.1 Z  X-50  Y-50  Z-1
2  BLK FORM 0.2  X+50  Y+50  Z+1
3  TOOL CALL 3 Z S2500
4  ;------------------------------
5  Q1 = 20 ;elipse radius on X
6  Q2 = 10 ;elipse radius on Y
7  ;------------------------------
8  Q3 = Q108 + Q1 + 3
9  L  X+Q3  Y+0 R0 FMAX
10 L  Z-0.2 R0 FMAX
11 ;=============================
12 Q6 = 360
13 LBL 1
14 Q10 = ( Q1 + Q108 ) * COS Q6
15 Q11 = ( Q2 + Q108 ) * SIN Q6
16 L  X+Q10  Y+Q11 R0 F2000
17 Q6 = Q6 - 1
18 CALL LBL 1 REP360
19 L  Z+5 R0 FMAX M2
20 END PGM elipsa MM 

HEIDENHAIN iTNC 530 spiral outside to inside idea

That is my small idea for program, that produce horizontal XY spiral face clean. Analog to Cycle 5 but it work from outside to inside. Basic, that can use any tool to produce any diameter, but keep in mind that it is stupid to use 50mm to try spiral on 30mm surface. From other hand, with 20mm endmill is quite nice to produce 100mm cylinder face

Keep in mind also that depending of the tool size the start point can be very different. In example if we clean 65mm diameter with 20 or 10mm will give different start point and if there is jaw or something can be crashed or milled
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iTNC 530 - test sphere program

The idea behind is to make half sphere only with small piece of code. In theory, should be possible just changing Q1 or the sphere radius , and to make any size.. Well, there should be additional milling if the sphere radius is 300mm, because of the material need to be clean. And that is only.. program for fun test, and somehow it was working on the programming station but not on real machine simulation, because of 530 NC model family difference.

0  BEGIN PGM testsphere MM 

1  BLK FORM 0.1 Z  X-100  Y-100  Z-120

2  BLK FORM 0.2  X+100  Y+100  Z+2

3  FN 0: Q1 =+100

4  FN 0: Q2 =+2

5  TOOL CALL 20 Z S3500

6  ;D40-ENDMILL

7  Q3 = Q1 / Q2

8  LBL 1

9  L  Z+2 R0 FMAX M3

10 Q4 = Q1 + Q108 + 3

11 L  X+Q4  Z-Q2 R0 F5000

12 Q5 = SQRT ( ( Q1 ^ 2 ) - ( ( Q1 - Q2 ) ^ 2 ) ) + Q108 + 0.5

13 L  X+Q5  Y+0 R0

14 CC  X+0  Y+0

15 CP IPA+360 DR-

16 L IX+0.5 IZ+0.5 R0 F10000

17 Q2 = Q2 + 2

18 CALL LBL 1 REPQ3

19 L  Z+222 R0 FMAX

20 ;------

21 TOOL CALL 30 Z S6000

22 ;BALL-6MM

23 Q10 = Q1 + Q108 + 3

24 Q11 = Q108 + Q1

25 L  X+Q10  Y+0  Z+2 R0 FMAX M3

26 L  Z-Q11 R0 F3000

27 L  Z-Q108 R0 F1500

28 CC  X+0  Y+0

29 CP IPA+360 DR-

30 L  Z+5 R0 F5000

31 L  Z+2 R0 FMAX

32 LBL 2

33 L  X+Q11  Y+0  Z+2 R0 FMAX

34 Q12 = Q1 - 1

35 L  Z-Q12 R0 F5000

36 CC  X+0  Z+0

37 L  Z-Q11 R0 F2000

38 Q13 = Q108 + Q1

39 L  Z-Q13 R0 F1000

40 CR  X+0  Z+0 R+Q1 DR-

41 CR  X-Q11  Z-Q13 R+Q1 DR-

42 L  Z+2 R0 FMAX

43 CYCL DEF 10.0 ROTATION

44 CYCL DEF 10.1 IROT+1

45 CALL LBL 2 REP179

46 L  Z+200 R0 FMAX M2

47 END PGM testsphere MM