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  #151  
Old Fri 18 March 2016, 12:14
Alan_c
Just call me: Alan (#11)
 
Grabouw (Western Cape)
South Africa
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Cool! congrats.
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  #152  
Old Fri 18 March 2016, 18:11
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Thanks Alan and Tom! Pretty good feeling but plenty to learn and do now.
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  #153  
Old Fri 18 March 2016, 21:45
darren salyer
Just call me: Darren #101
 
Wentzville mo
United States of America
Looks like you've met the requirements for a serial number.
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  #154  
Old Sat 19 March 2016, 08:02
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Well, I finally learned just enough of the CAM program to give it a go. You will see that I botched up my first attempt on the drilling operation because I was referencing the wrong surface. Luckily, only snapped an 1/8" bit rather than an expensive cutter. The g-code was setup to run off the top of the part and I referenced the temporary spoil board or the bottom of the part instead. It eventually dawned on me. In addition, I used a 5/8" piece of plywood instead of 1/2" material just to be safe. I'm sure my steps were too small and my feed speed was too slow too but hey, it ALMOST looks like I know what I'm doing. I'm happy enough at attempt #1.

First test run at making a dust boot.
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File Type: jpg IMG_0240.jpg (40.7 KB, 317 views)
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  #155  
Old Sat 19 March 2016, 08:49
Tom Ayres
Just call me: Tom #117
 
Bassett (VA)
United States of America
This is when the serious stuff happens. The machine was the easy part he he
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  #156  
Old Tue 22 March 2016, 10:33
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
I've cranked up the speed on the cam program based on the chip load formula. Does the speed look right on the video? I'll put another video out here on Thursday running an 1/8 bit, 2 flutes on the profile. I exceeded my weekly limit of space for videos so I can't put the other video up yet. For this video I'm using a 1/4" carbide bit, 2 flutes @ 18,000 rpm and a chip load of .015. According to the calc, I should be running at 540ipm. It would be great if it runs this fast on plywood all the time but would like another set of eyes on it to make sure I'm not moving too fast.

Cutting magnet pockets and the slot for the nut.
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  #157  
Old Tue 22 March 2016, 10:38
pblackburn
Just call me: Pete #98
 
South-Central Pennsylvania
United States of America
A lot plays into chip load that calculators do not take into account. Deflection, micrograin, humidity, machine rigidity, a perfect world, etc. Reduce your RPM and recalculate and start at 80% of the calculation for IPM. Get your speed to a comfortable margin to work within the constraints of the machine build to not have other issues. Biggest thing is listen for chatter and after the cut is done the bit should only be warm to cool and not hot.
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  #158  
Old Thu 24 March 2016, 10:18
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Thanks Pete. I'll definitely do that. Here is a video of it going full speed using the calculation. It just seems too fast for that bit. It's solid carbide, upcut, 1/8" cutting diameter, 1/4" shank, 2 flutes, 18,000 rpm, chipload 0.015 which equates to 540 ipm.

0.015 x 18000 x 2 = 540 ipm

I'll slow the rpm's down and reduce the chipload slightly and drop it down to 80% and see how it comes out.

Here is the cutting video.
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  #159  
Old Thu 24 March 2016, 11:40
Alan_c
Just call me: Alan (#11)
 
Grabouw (Western Cape)
South Africa
Send a message via Skype™ to Alan_c
Speed looks OK, you may still not have the correct acceleration settings though, it should not slow down like that when approaching a change in direction.
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  #160  
Old Thu 24 March 2016, 13:51
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
I'll see if I can figure out how to change that in the CAM software. Thanks for catching that!
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  #161  
Old Thu 24 March 2016, 15:19
pblackburn
Just call me: Pete #98
 
South-Central Pennsylvania
United States of America
The running speed looks fine but you will burn up that bit with those slow downs. You are rubbing and not cutting then. I would also advise a ramp plunge instead of a straight plunge.
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  #162  
Old Thu 24 March 2016, 20:12
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Congrats on your build!!! You get number 126 !!!
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  #163  
Old Thu 24 March 2016, 20:34
Robert M
Just call me: Robert
 
Lac-Brome, Qc
Canada
Send a message via Yahoo to Robert M Send a message via Skype™ to Robert M
....I'll see if I can figure out how to change that in the CAM software...

It's actually simpler to adjust it in Mach3 ( if that's what you're using )....
Just go under the 'config" main menu tab, scroll down to "motor tuning"...and there you'll see the acceleration box you can change values.
MAKE sure you click "save axis settings" after any changes and...make sure you change all you axis independently on that setting profile page !

Advise...in myexperiance & opinion.....Slower accel make life simple on your beast....and maybe less impressive to see vs a quick change, but, on the long run, many parts will simply survive longer....with less maintenance & cost.
IE....gear rack & pinion for starters

All the best, R.
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  #164  
Old Thu 24 March 2016, 21:37
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
I'm working on my first paid sign job. I'll post pics on it as I get things figured out.

Pete:
I did figure out how to get rid of the plunge on my cuts tonight. Thanks for the advice!

Mike:
Thanks for assigning me #126. I feel like I just got my diploma!

Robert:
Thanks for the tip! I'll give it a go on the motor tuning and see where I settle for acceleration.
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  #165  
Old Fri 25 March 2016, 01:13
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
Well done #126.
Happy dust to you.
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  #166  
Old Fri 25 March 2016, 05:48
Kornerking
Just call me: Pete #127
 
Big Falls, Mn
United States of America
Congratulations. Paid jobs are great.
Guess I should get my logos on as well.
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  #167  
Old Fri 25 March 2016, 07:35
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Thanks Al and Pete! Get those logos on Pete. Graduation day awaits!
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  #168  
Old Fri 25 March 2016, 07:50
darren salyer
Just call me: Darren #101
 
Wentzville mo
United States of America
Congrats to #126
from #101.
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  #169  
Old Fri 25 March 2016, 11:40
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Thanks a bunch Darren! The 100+ club?
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  #170  
Old Fri 25 March 2016, 13:56
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Congrats....wow 126 machines
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  #171  
Old Fri 25 March 2016, 14:14
Tom Ayres
Just call me: Tom #117
 
Bassett (VA)
United States of America
now 127
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  #172  
Old Fri 25 March 2016, 14:43
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia
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  #173  
Old Fri 25 March 2016, 15:57
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Thanks Sean, Tom and Nikonauts!!! Sean don't you own like 30 of them?
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  #174  
Old Sun 27 March 2016, 16:12
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Herb,
Interestingly enough, I don't have any of them anymore. #5 gone, all the others where built for other friends or University as a class project. I have enough experience building them now that I don't even refer to the instructions! Now, I just sit back and comment from the cheap seats.

....but I do plan on building a new one later this year if all goes well!

Sean
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  #175  
Old Sun 27 March 2016, 21:48
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Builder's Log Update

Outstanding! Congratulations.

Here's the Update Builder's Log with your entry added.

Please let me know your cutting dimensions for the log.
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  #176  
Old Sun 27 March 2016, 22:32
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Sean:
I look forward to seeing a near perfect build with so much experience!

John:
The dimensions are 49"x97". Seems to be a common size after looking through the list again. Nothing special going on beyond that other than a spindle rather than a router.
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  #177  
Old Mon 28 March 2016, 07:58
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Builder's Log Update

Thanks for the information. I have updated your log entry.

Yours is a very impressive story. It took you awhile, but you stuck to it and finished...including earning a serial number.
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  #178  
Old Mon 28 March 2016, 12:57
hflwaterski
Just call me: Herb #126
 
Genesee, WI
United States of America
Thanks John! I'm very relieved to have it running. For the longest time, it was non-functional pile of steel taking up space but now it sits proudly like a showcase thanks to everyone on the forum. I'm privileged to have so much accessibility to the experienced builder's logs and immediate, helpful tips and I appreciate you updating the Builder's Log!
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  #179  
Old Mon 28 March 2016, 19:20
Tom Ayres
Just call me: Tom #117
 
Bassett (VA)
United States of America
Now Let's See Some Work!
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  #180  
Old Tue 29 March 2016, 18:12
Andrew_standen
Just call me: Andrew #109
 
Dorset
United Kingdom
Congratulations
from number 109
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