[bvd1940]

For comparison, here is video of cutting a part similar in features, but larger in size to the ones I shared in post #795. Parameters are in the description of the video, but roughing is at 250 IPM and between .125" to .20" stepover, at 14K RPM.

Enjoy. This is what I need for the garage.





CNC Machining Brackets on Brother TC-S2Dn-O with HSMWorks - YouTube

That is one heck of a machine, you making me want more than I can afford LOL :drowning:
Bill in SE Idaho

[diyengineer]

I'll take one! Haha

[jid2]

I could share what I used, but honestly its only useful if you do my conversion. Youd be best served to design what you need and order accordingly.

[Techbuilder]

Judging by your design I would be a fool not to follow in your foot steps
The only slight possible issue I see is that I ordered the PM-932M however I believe there is only a difference in the Z

I wouldn't mind paying for the information as well

[dracozny]

Judging by your design I would be a fool not to follow in your foot steps
The only slight possible issue I see is that I ordered the PM-932M however I believe there is only a difference in the Z

I wouldn't mind paying for the information as well

the primary issue is the overall dimensions will vary even though they look similar. perhaps starting your own thread and measuring out the dimensions of your machine the way it sits now, will help everyone including yourself design a suitable approach to converting your machine. that will also serve to help you problem solve other machining tasks in the future.

[Techbuilder]

the primary issue is the overall dimensions will vary even though they look similar. perhaps starting your own thread and measuring out the dimensions of your machine the way it sits now, will help everyone including yourself design a suitable approach to converting your machine. that will also serve to help you problem solve other machining tasks in the future.

Hi Dracozny,

I understand where your coming from but as I stated I don't have the machine in yet as I still have another 6 weeks till it comes in and I wanted to purchase everything for the conversion ahead of time.
Matt from Quality Machine Tools stated that the 932 is exactly the same except the 932 has a little less travel because there are slight casting changes to accommodate the powerfeed connectors for the x and the z.

None the less any information jid2 could provide me would be really helpful and get me near the right ball park to order my ball screws ahead of time.

[vertcnc]

I would just order them a little long, then after your machine arrives and you configure how your going to mount the fixed ends of the screws, just cut them to length and turn the ends for the support bearing.

[Techbuilder]

I agree.

jid2 is their anyway you could provide me with the lengths, diameter and pitch at least?

[dracozny]

I agree.

jid2 is their anyway you could provide me with the lengths, diameter and pitch at least?

looking at this site the only axis that might be close is the Y. the X seems to have a longer travel compared to the PM-45 and the Z is a good inch longer. I stick by my original statement, you would be better served measuring the mill after it arrives. outside of that using DIY CNC: Build Your Own CNC, CNC Router, or 3D Printer would be a reasonable start for the diameters and pitches. but even that site recommends you do your due diligence before hand.

[Techbuilder]

looking at this site the only axis that might be close is the Y. the X seems to have a longer travel compared to the PM-45 and the Z is a good inch longer. I stick by my original statement, you would be better served measuring the mill after it arrives. outside of that using DIY CNC: Build Your Own CNC, CNC Router, or 3D Printer would be a reasonable start for the diameters and pitches. but even that site recommends you do your due diligence before hand.

The PM-932 is actually 1/2" shorter if you read the travel length with power feed compared to the PM-45 which is more realistic when you add your stepper motor.
Honestly dracozny what is your problem?
I'm asking jid2 on his specifications and offered to pay for them and than you come over here and rudely answer a question that is not aimed toward you.

[dracozny]

The PM-932 is actually 1/2" shorter if you read the travel length with power feed compared to the PM-45 which is more realistic when you add your stepper motor.
Honestly dracozny what is your problem?
I'm asking jid2 on his specifications and offered to pay for them and than you come over here and rudely answer a question that is not aimed toward you.

I was merely aiding in the conversation, it is an open forum after all. If you feel offended somehow that is your problem not mine.

[diyengineer]

I think he was honestly just trying to help, I didn't read it as rude. I would hold off and measure it when it shows up. It would be a shame to botch it and find out once you already got them machined.


Washington state

[mmprestine]

Loved the thread and videos also. At work we have 13 Haas mills and 4 Haas lathes. We build industrial equipment and these machines are running full time. I was once talking to the owner and he told me that the key is to decide when and when not to make parts. In house we only ever make one offs and customs that are under our direct control but once they get into volumes they are farmed out. In quantities it is often the case that we cannot even buy the material for the prices we get parts made. And we buy a ton of material so our pricing is very good. A lot of people think the industry is dead but we also use casting of parts then get final machining done. Anyway, the real money comes from the engineering and product development and not the making of the parts. At least that is what I see and this has gone from a 1 mil business to over 50 mil in the 14 years I have been here.

[109jb]

Techbuilder,

Fist off, dracozny was replying to a post in an open thread. If you only want answers from jd2, a PM would be the best route. Dracozny is trying to help you and in my opinion you should heed his advice. Jd2 pretty much told you the same thing as well. These Chinese machines look the same but can come from different factories and measurements can be different. Unless you have the EXACT same machine and use the EXACT conversion design as jd2 you will likely need different machining dimensions on the screws. If you just want diameter and pitch, then read the thread. I have been following this thread since it started and I know that information is in here. Nobody here is doing anything but trying to help you, but in the end, if you want to pre-buy screws and possibly have to junk them because something is different then it is your money and your decision.

Also, the power feed travel specified by the manufacturer is not the dimension you want to look at if doing a cnc conversion. The stock power feed is not used and with the right cnc design you will be able to achieve the non-power feed travel.

[jid2]

I can post my drawing. The end treatments are specific to my bearing designs. This is very important on the fit of the Y axis. And my Z axis is actually too short, I can drive the nut off the screw. I measured first, but didn't 100% finish the design before I ordered my screws and it almost made me scrap the Z axis.

Have fun.

[jid2]

I'm selling some TTS tools. The ER20 stuff is pretty much gone, but I still have 2 3/8" drill chucks, an ER20 floating tap holder and a slitting saw arbor.

If you are interested in any of that stuff send me a PM.

[jid2]

TTS stuff is all gone now.

[jid2]

In theory I've got some guys who have already come and looked at the machine who are going to come take it home this weekend...

[diyengineer]

Congrats on the sale! Hope it goes smooth! What's next the brother ??


Washington state

[jid2]

Not sure whats next besides a 5-7hp screw compressor and some organization and support equipment for a bigger machine. A Brother is the ideal scenario but I need to see what sales look like on some things to make sure demand looks strong enough.