[leef]

Lee,

Did you clean the machine well before first run?

I would hope that HIWIN ball screws would not shed chunks of themselves during any wear in period- they are supposedly precision ground to verh high tolerances and would hope supplied clean to EXITEC so if lubed there should be no visible wear compomnents.

You will likely find the crud on your screws came from elsewhere in the factory (in the process of building your machine or another near it), I pulled the covers off my gantry and found all sorts of alloy swarf and other crap in there.

I thought i did a pretty thorough clean out, i didnt disassemble anything?,
sprayed threads and best i could into bearings with crc, you got me thinking
you're right about the precision of the ball screws, hope i havent screwed
anything!

Anyone else have metal filings in ball screw oil?

************************************
EDIT: 03/01/08
I found the problem with the metal particles!
The metal particle's shown in my photo were actually already in
the cheap oiling can i was using!!! Caution!! rinse out your new
oiling can before use!!!
*************************************

[rocket67]

Lee, It may pay you to send Taney an Email asking him to get a technician to look at your photo on the forum and give you an opinion.
They are small particles so it may just be swarf.

Does the machine sound as though it is operating smoothly? And are the filings becoming less every time you use it?

Rocket.

[leef]

Hey rocket,

Ill email taney, as my rep doesn't seem to be all that responsive at moment! The original rep that sold me the machine has left the company!

Can only hear a little bit of a gritty sound very occasionally, and only
when manually operating it.

There seems to be less particles since the first routing job, but will need
do a few more jobs before i can be sure the particles have reduced.

Other than that, an expected whining sound of the ball screws? The
machine is running pretty smooth.

A bit tiddly now, new years n all,
Happy new years guys!!

Cheers~!

[rocket67]

I have the sh-cnc 6090 (600mm x 900mm). For the size and price, you can not beat it.

The only problem I have had was to replace x and y ball screws. The factory forgot to put grease fittings in the ball nuts. Needless to say after a few hours of operation, the ball bearings wore out. There was absolutely no problems with getting replacements. So, when your machine arrives, check the ball nuts for fittings and give it an extra shot of grease to be safe.

Overall I am very satisfied with the machine.

Brian

Lee, You wrote that you could not find any grease nipples on your machine. Could you have the same problem as bclark?
You need to grease your nuts!
Also you mentioned using crc to clean things up - did you force some grease into the bearings on the ends of the machine?
Who are the New Zealand agents that deal in these machines?

Have a great New Years Eve. Don`t get drunk too early or you will miss all the fun!

Rocket.

[howzat]

I don't have metal filings on my rails leef, so sounds like a good idea to get in touch with Taney about it.

The issue of grease nipples seems to be up in the air, Scott doesn't grease his at all and just uses slide way oil, whereas I think Jimmy greases his linear rails.

As for noise, we've made some audio files of what my machine sounds like when moving in each axes at high speed, the microphone was about 2 metres from the machine and kept in the same spot for each recording. You'll probably need to turn up the volume a fair bit for it. Let me know if yours sounds any different.

[Jimmy007]

I don't have metal filings on my rails leef, so sounds like a good idea to get in touch with Taney about it.

The issue of grease nipples seems to be up in the air, Scott doesn't grease his at all and just uses slide way oil, whereas I think Jimmy greases his linear rails.

As for noise, we've made some audio files of what my machine sounds like when moving in each axes at high speed, the microphone was about 2 metres from the machine and kept in the same spot for each recording. You'll probably need to turn up the volume a fair bit for it. Let me know if yours sounds any different.

I give my nipples a good generous pump whenever I notice less grease present where the guides run.

I'm still using the machine oil donated by a friend in the lubrication distribution business. He told me it is designed for machine guns and being light and designed to stick on components seems to do the trick well (I really like the way that stray dust doesn't seem to build up it).

Your machine sounds healthy Tom. I'm getting used to the sound of mine now that I have increased the process speed. When delivered it was set at 9m/min cut and 3m/min traversing between stations. I am now cutting at 12m /minute and traversing at 30M/min as I get used to things and really liking how it runs (my kids reckon he sounds like a robot).

[howzat]

I give my nipples a good generous pump whenever I notice less grease present where the guides run.

I'm still using the machine oil donated by a friend in the lubrication distribution business. He told me it is designed for machine guns and being light and designed to stick on components seems to do the trick well (I really like the way that stray dust doesn't seem to build up it).

Your machine sounds healthy Tom. I'm getting used to the sound of mine now that I have increased the process speed. When delivered it was set at 9m/min cut and 3m/min traversing between stations. I am now cutting at 12m /minute and traversing at 30M/min as I get used to things and really liking how it runs (my kids reckon he sounds like a robot).

Hi Jimmy, is that the grease nipple you are greasing in that red painted area of the image I've attached? And if so does a standard grease gun fit it? It's interesting how different people have different ideas about lubrication.. Scott has said he's not a fan of grease on this small machine because it's a magnet for dust and it's too thick for the rails.

You've also confused me when talking about increased process and traversing speeds, aren't the maximums 4 m and 6 m per minute respectively for the SHG0609?? Or are you talking about your larger machine? 30 m per minute?!

[Kent_Norway]

Hi Jimmy, is that the grease nipple you are greasing in that red painted area of the image I've attached? And if so does a standard grease gun fit it? It's interesting how different people have different ideas about lubrication.. Scott has said he's not a fan of grease on this small machine because it's a magnet for dust and it's too thick for the rails.

You've also confused me when talking about increased process and traversing speeds, aren't the maximums 4 m and 6 m per minute respectively for the SHG0609?? Or are you talking about your larger machine? 30 m per minute?!

That do for sure look like a grease nipple to me I do agree on the issue on a GO or a NO GO on the grease issue. I have been doing RC car racing in my younger day's and for sure putting grease on anything moving was building up piles of dirt which worn the parts out much faster than normal.

I would guess that the nipple it self is to lubricate the internal ball bearings inside linear movement part. I guess if you grease it to much it would come on to you're rails which I would expect be no good idea. Is the manual saying anything about this ?
K

[Kent_Norway]

Hehe, yeah rocket, did that badge to show off to my brother.
He loves his toyotas
I think the only fords i liked was the mk1 contina and escort.
(for body shape obviously, not grunt)

As for the metal filings decreasing, ill keep an eye out.
Im hoping they are there because the machine is new
and the ballscrews are just finding their place.
Sometimes i hear a bit of a gritty noise when manually
moving the gantry. Usually quiet tho.
Im constantly putting oil on those threads!

Kent, dunno if this helps, but this is how im using my machine.
Im just copying the g-code toolpath files onto the supplied
1gb usb stick and then plugging the usb stick into the
routers handset. Selecting the file, then run.
Router is in the garage, computer in the house.
I didnt purchase the mach3 thing, and havent needed to install
the DSP software yet.

Lee; This was really valuable info. Having my PC out of the dusty environment do sound for me like a good idea. In this way you can sit in you're favorite spot having a cup of tea while listening to music without being exposed to the dusty and possibly noisy garage environment.

You mentioned that you had not installed the DSP SW on you're PC. Is this to have a G code file transfered directly to the DSP without the need of a USB memory stick?

Would it be possible to have some more pictures of you're machine? Ball bearings in all axis is of interest and close ups of the stepper motors. Is the steppermotors Nanotech an in case which ? I can send you my email adr on a PM if this is easier ?
K

[howzat]

You mentioned that you had not installed the DSP SW on you're PC. Is this to have a G code file transfered directly to the DSP without the need of a USB memory stick?

K

Yup. Using the USB stick is so easy that I don't know when I'll get around to installing the DSP software either. I guess you could use any size stick as well so large files shouldn't be a problem..

Is the manual saying anything about this ?

It might do but I can't read Chinese!

[Kent_Norway]

Yup. Using the USB stick is so easy that I don't know when I'll get around to installing the DSP software either. I guess you could use any size stick as well so large files shouldn't be a problem..


It might do but I can't read Chinese!

Howzat; Ho ho ho, is there no instructions in English???! That´s for sure not a good thing...
Having a 1Gb memorystick is for sure bigger than the internal 128Mb of memory inside the DSP so in case I'm guessing that the 128Mb internal memory is just working as a buffer for the DSP then ?

Would it be possible to have some more pictures of you´re machine Howzat? I can PM my email address? I do however guess that you have passed midnight in you're country and in the celebration activities now :cheers:
K

[Kent_Norway]

Hi Jimmy, is that the grease nipple you are greasing in that red painted area of the image I've attached? And if so does a standard grease gun fit it? It's interesting how different people have different ideas about lubrication.. Scott has said he's not a fan of grease on this small machine because it's a magnet for dust and it's too thick for the rails.

You've also confused me when talking about increased process and traversing speeds, aren't the maximums 4 m and 6 m per minute respectively for the SHG0609?? Or are you talking about your larger machine? 30 m per minute?!

To all having a machine with the linear guides on each side holding the Gantry, they should be lubricated. I have been reading on some of the manufacturers producing Linear guides and here is a link to a page which gives you a PDF of a linear system (I was not able to upload the PDF for some strange reason, even if I zip'ed it) Pay special attention to page page 30 and 31 (B46,B47,B48)! http://www.solectro.se/Archive/Docum...atalog/LFS.pdf

The conclusion is for sure that we should lubricate, but if this attracts dirt on the reails, does this wear it out quicker (the reails)

[ger21]

The conclusion is for sure that we should lubricate, but if this attracts dirt on the reails, does this wear it out quicker (the reails)

They should have seals with scrapers that will keep the dirt out of the bearings, and shouldn't be a problem.

[Kent_Norway]

think i got it, actual size when carved 84" tall 12" wide

That pice looked fantastic. If I may ask, what was the smallest endmill you used during cutting of the most intricate part? 0,2-0,3mm ?

K

[cabnet636]

i am so impressed that people think thats the finished product!!

however thats the file saved on a disk, i will carve it today

i must say everything i have carved (when i watch bit depth an z zero location) has come out just right

will post finished product today

i can see why people love vcarve pro after i settled down and started following instructions it all comes clear

cabnet

[cabnet636]

and hold


i am sure there are sealing caps readily available for this

try this
http://www.hiwin.com/bs/index.html

and here
http://www.ahpseals.com/
cabnet

[Jimmy007]

Hi Jimmy, is that the grease nipple you are greasing in that red painted area of the image I've attached? And if so does a standard grease gun fit it? It's interesting how different people have different ideas about lubrication.. Scott has said he's not a fan of grease on this small machine because it's a magnet for dust and it's too thick for the rails.

You've also confused me when talking about increased process and traversing speeds, aren't the maximums 4 m and 6 m per minute respectively for the SHG0609?? Or are you talking about your larger machine? 30 m per minute?!

Yep, thats a grease nipple (although it may well be that the manufacturer would like you to pump oil in there rather than grease)-my manual is in english and it says something about using a mixture of 'Butter & Oil'.

Was talking about the big machine, 20 & 32M/min max speeds.

[Jimmy007]

Howzat; Ho ho ho, is there no instructions in English???! That´s for sure not a good thing...
Having a 1Gb memorystick is for sure bigger than the internal 128Mb of memory inside the DSP so in case I'm guessing that the 128Mb internal memory is just working as a buffer for the DSP then ?

Would it be possible to have some more pictures of you´re machine Howzat? I can PM my email address? I do however guess that you have passed midnight in you're country and in the celebration activities now :cheers:
K

English instructions for the DSP should be in the DSP folder of the supplied CD with DSP handwritten in the face. There is an english subfolder on the disk (at least that's what I was told).

Let me know how you go Tom, happy to e-mail my version (I obtained by other means) to you if it's not there.

Cheers,

Jimmy

[Jimmy007]

They should have seals with scrapers that will keep the dirt out of the bearings, and shouldn't be a problem.

Thanks Gerry,

I have seen the build up of dirt you refer to.

That is another reason why I routinely pump some grease in hoping that anything that does make it inside will be displaced by the fresh grease.

The machine manual appears to suggest 'cleaning and oiling' be performed every 4 days when working with high density board (guess that could mean MDF, HDF, and P/Board) and 7 days with other timber types.

My machines are only performing light duty (prototyping and small a scale production) so I tend to rely on the look and feel of the guides, rails, screws and gears as a means of determining when to clean/oil/grease things.

[rocket67]

jubee, Your machine was due to arrive about now. Do you have it yet?

Which one did you buy?

Rocket.