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  #91  
Old Wed 05 October 2011, 17:46
garycdba
Just call me: Gary #87
 
Suwanee
United States of America
The software i am using is g-simple and the tool bit is a 1/4 inch straight router bit. I have just started cutting and has not paid attention to the feeds. I just received serial #87 yesterday and is a newbe. Thanks for the help i downloaded the DXF file but was unable to get g-simple to generate g-code keep getting ID connection error. Anything to help is greatly appreciated.
Gary
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  #92  
Old Wed 05 October 2011, 22:59
Kobus_Joubert
Just call me: Kobus #6
 
Riversdale Western Cape
South Africa
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Hi Gary, When I got my machine up and running I also could not get going. I downloaded all the free CAM evaluation programs. Only when I tried the VECTRIC products that I really took off. It will cost you some money, but worth it in my opinion.
I got going within 5 minutes with CUT2D from Vectric.com.
Just my 2c worth.
I upgraded every now and then until I got to Aspire..The more you do the more you want out of the software...keep this in mind.
I thought Cut2D will be fine. It was for 2 months. Then I upgraded to V-Carve Pro...that was fine for a while...Now I am happy with Aspire and the Free upgrades helps...can't wait for Aspire V3.5 releasing soon.

Last edited by Kobus_Joubert; Wed 05 October 2011 at 23:02..
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  #93  
Old Thu 06 October 2011, 01:31
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
CUT2D is just too basic, its like evaluation version of some bigger software.
For any serious work it won't be enough. Start with VCarve atleast

If I get time today will look at using gsimple so I can help you
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  #94  
Old Thu 06 October 2011, 07:10
garycdba
Just call me: Gary #87
 
Suwanee
United States of America
Hi Kobus that's exactly what i did downloaded every free cam evaluation software and settled on g-simple just because i had the best results with g-simple. thanks for the advice if it was not for this forum i would really be lost.

Today i plan on learning more about g-code and importing DXF files once i learn more about what i am doing i will settle on what software to purchase.

Thanks for the good suggestions and the help.
Gary
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  #95  
Old Sun 09 October 2011, 16:31
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Some recent work, I'll post some pictures once the numbers are assembled and finished.

http://www.youtube.com/watch?v=SC2zUE5nXNM
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  #96  
Old Fri 14 October 2011, 14:34
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Bits arrived, will test them soon, its heaviest bit I held and its only 1/2" or 12.7mm



Minimum recommended feedrate 650 IPM or 16m/min at 18k RPM GULP!

Last edited by danilom; Fri 14 October 2011 at 15:01..
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  #97  
Old Fri 14 October 2011, 20:29
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
yep...that looks aggressive. Show us some chips! Really, I'm interested in the chip load?
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  #98  
Old Sat 15 October 2011, 11:10
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
0.018 - 0.021 per tooth
for 1xD cutting, for 2xD 25% lower
I think that 12m/min will be possible
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  #99  
Old Sun 16 October 2011, 05:24
KenC
Just call me: Ken
 
Klang
Malaysia
That is a mean looking bit! It will be cool to see the MM going about its business at at just "mare" 12m/min! That is like F1 racing car!
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  #100  
Old Mon 17 October 2011, 14:27
Travish
Just call me: Travis #75
 
Wa
United States of America
Danilo,

I like this style of cutters. I have gone through about 40 sheets using these cutters, and they do really well for keeping burrs to a minimum. The cutters are strong and like a healthy chip load. If the sppeds scare you at 1st try running the cutter at the 12,500-13,500 range but keep the chipload @F.036 per rev to minimize burning the tool. Get your CS Setting right and go for it. Then as you get dialed in, up the rpm to 18,000. I can cut full depth of cut right through 3/4 marine hardwood plywood like nothing with these cutters, trully amazing to watch it go. your dust collecter will fill up in a hurry. Have fun with you new cutter!
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  #101  
Old Mon 17 October 2011, 19:41
digger
Just call me: Milosh #113
 
Toronto
Canada
But he doesn't have dust collector.
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  #102  
Old Mon 17 October 2011, 20:21
KenC
Just call me: Ken
 
Klang
Malaysia
He can collect the dust manually
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  #103  
Old Tue 18 October 2011, 01:11
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Hahaha I knew you would say that digger!
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  #104  
Old Tue 18 October 2011, 14:23
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Anyone has some idea on calculating Horsepower needed for cutting?
I seen somewhere some formulas but it requires the amount of power needed to remove cubic inch of material.
What would be that for MDF or particle board?
Last thing I want is to stall the spindle. Its 2.2kW or 3HP, if someone has some info on power req.
I have pocketed hardwood, beech with 5mm DOC and 18mm endmill, with no problem.
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  #105  
Old Tue 18 October 2011, 20:17
ger21
Just call me: Ger
 
Detroit, MI
United States of America
Quote:
Originally Posted by danilom View Post
Bits arrived, will test them soon, its heaviest bit I held and its only 1/2" or 12.7mm



Minimum recommended feedrate 650 IPM or 16m/min at 18k RPM GULP!
The bit in the picture is left handed. Or is the image mirrored?

On our Morbidelli router at work we cut 3/4" particle board at 950ipm at 16,000rpm with similar bits. It also has a 15HP spindle, and two 25HP vacuum pumps.
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  #106  
Old Tue 18 October 2011, 20:50
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Ger, remember this thread?: Compression spiral LEFT hand bits
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  #107  
Old Tue 18 October 2011, 21:04
ger21
Just call me: Ger
 
Detroit, MI
United States of America
Had a feeling it was the same person.
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  #108  
Old Wed 19 October 2011, 01:22
KenC
Just call me: Ken
 
Klang
Malaysia
Danilo,
Regarding spindle power for cutting, There are no fix rules for it, it is a compounded result of how deep, how hard you feed the bit into the work & size of the bit. Also, how sharp or how blunt your bit is.

To monitor stalling, The only reliable monitoring I found is the current the spindle draws, Power= Voltage x Current & since Voltage is sort of constant, Current will give a direct indication of the power. I don't know how accurate the Chinese VFD display is but that isn't critical, I only need an indication.
For the 2.2Kw, Working around 4A is very safe as it is about 50% capacity.
Adjust your cutting combo to suit or change a sharp bit when the current start to climb gradually over 5A. you don't want to go over 6A as there will be too little head room for to load variation due to blunt bit, uneven wood/MDF density & other unforeseeable load.
For the 2.2Kw Chinese spindle 8A is THE death zone, I know

Monitor by listening is one way but it won't give repeatable result & it is always too late for me to respond to stalling especially with 3D works...
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  #109  
Old Mon 12 December 2011, 18:07
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Just finished cutting 40 boards of 18mm plywood and 6 boards 10mm. Its was for a local theater. The astonishing decor is breath taking as some pieces are 17 x 7.2m when assembled. Will post some pictures later when they finish the assembly and final setup.

Mechmate held good and I got more tired from loading boards and unloading pieces then machine from cutting. Only damage... Z axis reduction belt, it was damaged some weeks earlier when I during tramming over tightened the Z axis wheels and jammed the axis. As the motor was stronger then the belt it stretched it a little, which I did not notice until it gave up couple of days ago after the 40 boards .
Total bits spent.... 2 spiral upcut bits they hold up quite nice, for a price of 6$ , I recommend carbidechiu! The truth is the plywood was poplar and very soft, I cut it in 9mm per pass at 2.8m/min and 16k rpm.
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  #110  
Old Mon 12 December 2011, 22:07
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
46 boards sounded like some money coming in, but then you said it is for a theater and they don't pay much money

Well done!
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  #111  
Old Fri 10 February 2012, 15:00
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
I forgot to post the pics of the scenery. Here they are! Stage is 17 x 7.5m and scenographer filled it up till the last millimeter.








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  #112  
Old Fri 10 February 2012, 17:55
TechGladiator
Just call me: Miguel #94
 
Randolph, NJ
United States of America
Danilo. VERY NICE!!.. I want to be like you when I grow up . I am impressed.!!!
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  #113  
Old Fri 10 February 2012, 18:18
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Whole scene produced in 19 days, with help of their woodworkers and others
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  #114  
Old Fri 10 February 2012, 18:21
TechGladiator
Just call me: Miguel #94
 
Randolph, NJ
United States of America
Very nice. Check PM
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  #115  
Old Fri 10 February 2012, 19:45
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Very impressive!
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  #116  
Old Fri 10 February 2012, 21:00
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Wow, very nice!
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  #117  
Old Fri 10 February 2012, 22:04
Kobus_Joubert
Just call me: Kobus #6
 
Riversdale Western Cape
South Africa
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That looks like a lot of dust.... Well done
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  #118  
Old Sat 11 February 2012, 02:10
KenC
Just call me: Ken
 
Klang
Malaysia
Finger leaking good!!!
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  #119  
Old Sat 11 February 2012, 04:34
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Nice job.
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  #120  
Old Sat 11 February 2012, 07:21
Johannescnc
Just call me: John
 
Hannover, DE
Germany
What do you have in the space normally give for the MechMate logo?
I recognize the 'kreutz' but the first part is covered...
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