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Type: Posts; User: Jim Dawson

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1. ## Thread: Must I Buy Fusion 360 For This? Or Can Vcarve Create This Model?

by Jim Dawson
Replies
2
Views
3

### Re: Must I Buy Fusion 360 For This? Or Can Vcarve Create This Model?

Fusion 360 is free to hobbyists. You can download it and learn how to use it here https://academy.titansofcnc.com/ https://titansofcnc.com/resources/
2. ## Thread: calculating thread depth (single point lathe threading)

by Jim Dawson
Replies
10
Views
21

### Re: calculating thread depth (single point lathe threading)

Yup, that's what I've been doing. :) Then make a final adjustment with the cutter comp to dial in the fit.
3. ## Thread: calculating thread depth (single point lathe threading)

by Jim Dawson
Replies
10
Views
21

### Re: calculating thread depth (single point lathe threading)

Very nice work!

Maybe I should say for my machine I have to plug in the Single Depth of the thread for it to cut correctly. That would be ''T'' dimension in the Fusion illustration when you hover...
4. ## Thread: calculating thread depth (single point lathe threading)

by Jim Dawson
Replies
10
Views
21

### Re: calculating thread depth (single point lathe threading)

One thing to note In Fusion you need to plug in 1/2 the calculated thread depth. So in this case the value entered into fusion would be 0.433mm. I forgot to mention that.

That is awesome!...
5. ## Thread: calculating thread depth (single point lathe threading)

by Jim Dawson
Replies
10
Views
21

### Re: calculating thread depth (single point lathe threading)

Yes, 0.866 is the correct ratio. I just assume a sharp point on the tool when I set it, normally for small pitch threads the tool doesn't have enough radius (or flat) to worry about. Pretty much...
6. ## Thread: calculating thread depth (single point lathe threading)

by Jim Dawson
Replies
10
Views
21

### Re: calculating thread depth (single point lathe threading)

I set my tools to the spindle C/L (G54 X0) for all turning operations. Then I let Fusion generate the appropriate G code for threading. Then I run a part and check the result against whatever...
7. ## Thread: Tie 220v VFD into dryer line - with a switch?

by Jim Dawson
Replies
8
Views
27

### Re: Tie 220v VFD into dryer line - with a switch?

That seems overly complicated for what you need. Why not just tap into the dryer power for the router, then unplug the dryer when using the router. That would prevent inadvertent use of the dryer.
8. ## Thread: Need Help

by Jim Dawson
Replies
3
Views
102

### Re: Need Help

Another thought, above you said that there ''is no nipple'' when facing. If the tool bit was too high, there would not be a nipple, but the insert would wear on the bottom because the tip would be...
9. ## Thread: Laser cutting while in motion

by Jim Dawson
Replies
11
Views
34

### Re: Laser cutting while in motion

I would try Plan A, +/- 2mm is a pretty wide tolerance. Just moving the cloth with a stepper should be able to hold that easily.
10. ## Thread: New spindle motor - Servo or Induction?

by Jim Dawson
Replies
83
Views
467

### Re: New spindle motor - Servo or Induction?

Peak torque is just that and the motor won't run for long in that range. Peak torque on your 2 HP motor is in the 20 Nm range. My 3 HP on my knee mill pretty much runs out of torque when tapping...
11. ## Thread: Need Help

by Jim Dawson
Replies
3
Views
102

### Re: Need Help

The bottom of the insert should never see the material. I'm a bit confused here, are you saying that the the wear is on the bottom of the insert, the part next to the insert holder rather than the...
12. ## Thread: Laser cutting while in motion

by Jim Dawson
Replies
11
Views
34

### Re: Laser cutting while in motion

I assume the end goal is to have the laser cut centered on the attachment or at least relative to the attachment position. If registration is that critical, then locating the attachment with a...
13. ## Thread: Need Help

by Jim Dawson
Replies
3
Views
102

### Re: Need Help

Is your tool height correct? Normally wear on the bottom would mean the tool is way too high.
14. ## Thread: New spindle motor - Servo or Induction?

by Jim Dawson
Replies
83
Views
467

### Re: New spindle motor - Servo or Induction?

I think you would be very disappointed with the performance of that motor for your application. Your current motor develops about 8Nm base torque, the base torque of the motor in the link is 0.5 Nm...
15. ## Thread: UPS battery backup - general question

by Jim Dawson
Replies
4
Views
17

### Re: UPS battery backup - general question

The normal way it is done is to have all motion stop on power fail, much like pressing the E-stop switch, even on a very brief power fail. In other words it drops out the control power relay (which...
16. ## Thread: Buying stock for 5c collets

by Jim Dawson
Replies
7
Views
36

### Re: Buying stock for 5c collets

Looking forward to the videos :)
17. ## Thread: UPS battery backup - general question

by Jim Dawson
Replies
4
Views
17

### Re: UPS battery backup - general question

Something like this would keep you running at full power for a few minutes, I don't see a full load run time spec'd. It would keep the computer up for a few hours once the router and controls are...
18. ## Thread: Buying stock for 5c collets

by Jim Dawson
Replies
7
Views
36

### Re: Buying stock for 5c collets

There really isn't any downside. No problem boring your own, the ones I have done machine very nicely. One note, the only time a collet (or chuck for that matter) needs to be perfectly concentric...
19. ## Thread: Laser cutting while in motion

by Jim Dawson
Replies
11
Views
34

### Re: Laser cutting while in motion

Sounds like a good plan. It might require an encoder reading the cloth speed to coordinate the timing, but it should work.
20. ## Thread: Laser cutting while in motion

by Jim Dawson
Replies
11
Views
34

### Re: Laser cutting while in motion

If you look at it mathematically, I think the path described by the laser would be a rotated ellipse, the parameters of which would change with the speed of the cloth through the machine. An Excel...
21. ## Thread: Grizzly G0765 lathe and HDPE Rod turning?

by Jim Dawson
Replies
3
Views
61

### Re: Grizzly G0765 lathe and HDPE Rod turning?

For soft materials normally a high shear angles are prefered. Think knife blade rather than cold chisel. A generous nose radius is helpful also. Experiment a bit and see what works best for you.
22. ## Thread: Wiring new controllers and the other things!

by Jim Dawson
Replies
19
Views
43

### Re: Wiring new controllers and the other things!

I could disappear also, I'm 70 :) There are a lot of experienced folks on here that can help you get going.

EDIT: I should note that since that machine will be operated in an...
23. ## Thread: Wiring new controllers and the other things!

by Jim Dawson
Replies
19
Views
43

### Re: Wiring new controllers and the other things!

The good news is that the Anaheim Automation motors are well documented. Looks like they are 6 lead motors. ...
24. ## Thread: Wiring new controllers and the other things!

by Jim Dawson
Replies
19
Views
43

### Re: Wiring new controllers and the other things!

Well, 120V AC goes to the AC terminals on the drives. PE terminal goes to ground.
120V AC goes to the 24V power supply also.
Not sure the 5V power supply is needed, depends on which board you have....
25. ## Thread: Wiring new controllers and the other things!

by Jim Dawson
Replies
19
Views
43

### Re: Wiring new controllers and the other things!

The stepper drives are fine, assuming the motors are compatible. Maybe you could get the information off of the data tag on the motors if it exists.

The stepper drives require a step (Pul) and...
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