[samco]

couple of thoughts..

-With your 3phase motor and vfd - all you need is a spindle encoder and you can rigid tap. (without a servo) Linuxcnc does spindle synced motion.

-you have a rotory axis on your spindle I see. It isn't for the faint of heart but linuxcnc does kinematics. it can do the math to translate from joint/axis motion to 'part' motion. It makes gcode programming much easier. there are some sample configs.. but like I say - you would have to read up.

https://www.youtube.com/watch?v=0jQy-zc5P6w

https://www.youtube.com/watch?v=aF7C8d4d0nc

https://www.youtube.com/watch?v=DjPCEpZybXs

[nateman_doo]

I will be watching your VFD install like a hawk. I will be doing the same for my Tormach Build. I don't know anything about them, so what better thread to turn to

[hoss2006]

Uh Oh, I see all of the toys and more on the mill now. Only time will tell.

More to come.
Hoss

[hoss2006]

couple of thoughts..

-With your 3phase motor and vfd - all you need is a spindle encoder and you can rigid tap. (without a servo) Linuxcnc does spindle synced motion.

-you have a rotory axis on your spindle I see. It isn't for the faint of heart but linuxcnc does kinematics. it can do the math to translate from joint/axis motion to 'part' motion. It makes gcode programming much easier. there are some sample configs.. but like I say - you would have to read up.

https://www.youtube.com/watch?v=0jQy-zc5P6w

https://www.youtube.com/watch?v=aF7C8d4d0nc

https://www.youtube.com/watch?v=DjPCEpZybXs

Thanks, yes I need to get into linux cnc more and more.
Hoss

[hoss2006]

I will be watching your VFD install like a hawk. I will be doing the same for my Tormach Build. I don't know anything about them, so what better thread to turn to

Thanks I'll try and show it as well as others already have.
Hoss

[hoss2006]

Got the 56C motor in, boy it's heavy.
Went ahead and ordered the Vector VFD from Dealers today and they shipped today.
When I get the RC motor in from the slow boat I'll show a comparison lineup of all the motors I have.
Hoss

[otto_pjm]

Hi Pete,

I'm converting a TM20LV mill using belts and tucking the X-motor in front of the table. Also the Y motor is tucked back beside the mill base.

TM20VL Mill CNC Conversion X-Axis (Part 2)

http://www.cnczone.com/forums/bencht...ghlight=homann


It may give you some ideas.

Cheers,

Peter

Peter, great thanks for the links, I'm way behind on my thread reading, and Hoss waits for no man! I'll check them out.
Ricce, thanks for your offer as well.

My much neglected build thread is here.
another_g0704_conversion-hosss_plans-linuxcnc_control

Pete

Sorry about the highjack Hoss.

[hoss2006]

SDP-SI was out of stock on the L belt I needed for the 3 phase motor and mcmaster didn't carry the length I needed
so I jumped on google and found this site that had it and much cheaper too.
Industrial Timing Belts & Pulleys Polytech Design Inc. Clifton NJ 07011
Hoss

[punisher454]

Nice find Hoss! I have spent many hours looking for the best deal on the HTD 5mm 40tooth pulleys I need. Only found it cheaper one other place (by only a couple $) but they had a minimum order of 3 units and I only need 2. I think I know now where I'm going to get my pulleys next week.

[hoss2006]

Yeah they have a $15 min order, i actually had to add an extra belt for the rc motor to just get there.
It's all good.
Hoss

[TiagoSantos]

I have spent many hours looking for the best deal on the HTD 5mm 40tooth pulleys I need. Only found it cheaper one other place (by only a couple $)

I do this all the time, so I'll help you out by pointing it out to you - is it worth spending hours to save a couple of bucks? :P Whenever I notice myself getting stuck in a loop trying to work out the best way to save 10 bucks, I just try to do an hour of overtime and work and splurge on the "good" stuff haha.

[punisher454]

I do this all the time, so I'll help you out by pointing it out to you - is it worth spending hours to save a couple of bucks? :P Whenever I notice myself getting stuck in a loop trying to work out the best way to save 10 bucks, I just try to do an hour of overtime and work and splurge on the "good" stuff haha.

Oh I know it. But I have to say that by having done this for years I have really improved my "finding a good deal on the internet" skills a lot.
But yes I do have to just stop my self sometimes, its almost like gambling.

[hoss2006]

I should have watched more julia child, this batch of cookies did not turn out, should have listened to mom.:nono:
Better luck next time.
Hoss

[nateman_doo]

Which VFD did you end up getting? Why did you choose it, and am I reading that you are buying a toothed belt for the 3 phase? That belt place is about 30 minutes from me

[hoss2006]

Which VFD did you end up getting? Why did you choose it, and am I reading that you are buying a toothed belt for the 3 phase? That belt place is about 30 minutes from me

I ordered the one from Dealers I mentioned here.
http://www.cnczone.com/forums/1214330-post4160.html
It's a great price on a sensorless vector VFD to go with the same motor mentioned.
Hoss

[hoss2006]

Sorry for the short reply, duty called.
Adding on, I'm learning this too.
I read these pdf's to learn about things like FLA, CT, VT and more.
http://wmea.net/Technical%20Papers/S...ency_Drive.pdf
http://www.danfoss.com/NR/rdonlyres/...vfdlesson4.pdf
http://www.automationdirect.com/stat...sselection.pdf
http://www.tecowestinghouse.com/Manu...stallation.pdf
http://www.automationdirect.com/stat...nhorsetprs.pdf
The Dykman pdf explained things well.
Hoss

[hoss2006]

If you want to learn more about 3-phase motors, I watched these vids by Lewellyn on youtube, he really makes it easy to understand.

[ame="http://www.youtube.com/watch?v=6H_MkhwAmz4&list=FLjoRKEpk7uE5Wzf4b-IFTFg&index=3"]Three-Phase Induction Motors - MyToolboxTV Ep. 3 - YouTube[/ame]

[ame="http://www.youtube.com/watch?v=dZN3IroGkzI&list=FLjoRKEpk7uE5Wzf4b-IFTFg&index=2"]Motor Nameplate Data - MyToolboxTV Ep. 11 - YouTube[/ame]


This line from the Teco manual notes a few of main specs to verify when matching the motor to the VFD.
• Check inverter and motor nameplates to determine that they have the same HP and voltage
ratings. (Ensure that full load motor amps (FLA) do not exceed that of the inverter. (6.0 for my motor, 7.5 for the Teco))
Hoss

[Stigoe]

I have both Phase1/2 conversion and Beltdrive conversion DVDs and I have a couple of questions. The answers may be buried somewhere in this thread, but I couldn't find them in a search.

Which size belt do I use for the 2-speed quill belt drive?
Which size pulleys do I use for the Y-axis motor when it is mounted at the back and which size belt?

[hoss2006]

I have both Phase1/2 conversion and Beltdrive conversion DVDs and I have a couple of questions. The answers may be buried somewhere in this thread, but I couldn't find them in a search.

Which size belt do I use for the 2-speed quill belt drive?
Which size pulleys do I use for the Y-axis motor when it is mounted at the back and which size belt?

From the G0704 quill belt drive info.txt
The timing pulley version uses a 75 tooth 3/8 inch wide XL timing belt.
The v-belt version uses a 3L150 fractional HP belt. ( Note: a 2L150 could be used also)
For the rear Y I used a pair of 25 tooth XL pulleys with a 77 tooth XL belt.
You can use any pulley size or type you wish, this belt length calc will help you determine the length, use 5.188 for the center distance, doesn't have to be exact, there's plenty of adjustment + or -.
SDP/SI
you can email me here if you have more questions. [email protected]
Hoss

[Stigoe]

Thanks, Hoss!