Welcome, Guest. Please login or register.
Did you miss your activation email?
May 27, 2017, 02:18:21 PM

Login with username, password and session length
Search:     Advanced search
* Home Help Search Calendar Links Login Register
  Show Posts
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 »
561  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Conect 121 lathe retro on: December 09, 2011, 07:06:16 AM
Thanks for the info on the Estop, Hood. Does it work well on your other machines? I don't feel comfortable about merely cutting the power to the drives. They still have enough bus voltage to move a bit  I think. I cut power to motors and switch in braking resistors. Depending on the resistors values the motor stop pretty much instantaneously.

Sounds a quite capable lathe.

Dan
562  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Conect 121 lathe retro on: December 09, 2011, 06:15:08 AM
Hood,

Main reason I don't like large motors on small machines is I am afraid the motor would have enough power to damage the machine should something go wrong. But you're using a servo and can limit the current/torque to a value you like.

Would you share your E-stop diagram?

What size is the lathe? What are the travels?

Dan
563  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Conect 121 lathe retro on: December 08, 2011, 03:38:15 PM
Hood,

Looks good! Going to be nice little machine... hmm... somehow it doesn't sound right - small machine in conjunction with Hood Grin

Did you go with servos just because you had them lying around? Besides, looks like an overkill to use a 400W servo on the Z of this little lathe?

Dan
564  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Z Axis Counter Weight on: December 05, 2011, 01:38:10 AM
Troy,

The correct way would be figuring the centre of gravity of the head and anchor it there, I think.

Regarding vibration dampening, this should not be a factor to be considered as the chain cannot transfer any substantial vibrations. The vibrations will be dampened by the head mass and also transferred to the column and base via the linear slides and thus it's important to have well preloaded linear blocks.

Dan
565  Mach Discussion / Mach SDK plugin questions and answers. / Re: Faster DRO updates on: December 02, 2011, 02:43:18 PM
Someone else will have to address the plugin question as I am not an expert. What I do know is that Mach3's data transfer rate is 10Hz indeed, like you said.

Dan
566  Mach Discussion / Mach SDK plugin questions and answers. / Re: Faster DRO updates on: December 02, 2011, 02:31:00 PM
The screen refresh rate is fixed and doesn't depend on the engine frequency as far as I know.

Dan
567  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Bridgeport is getting an overhaul on: December 02, 2011, 03:54:35 AM
LOL... I was trying to keep this conversion as simple as I could, but somehow I keep adding more "features" to it, and now you're suggesting throwing in a PLC as well... no thanks Wink

Dan

P.S.
Sorry, forgot that simple for you means using a PLC in the first place Cheesy
568  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Bridgeport is getting an overhaul on: December 02, 2011, 03:40:30 AM
Hood,

Yes, you understood exactly what I was asking Smiley So both the supply and control are 24V. Thanks.

Dan
569  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Bridgeport is getting an overhaul on: December 02, 2011, 01:57:47 AM
Thanks Russ.

Hood, probably for you: in the first photo, the header on the left looks like the 24VDC supply, and the one on the right looks like the control. What would the control be? Will it work with 5V?

Dan
570  General CNC Chat / Show"N"Tell ( Your Machines) / Re: Bridgeport is getting an overhaul on: December 01, 2011, 10:28:46 AM
Hey, Russ, thanks for that!

You are without a doubt in the avant-garde, Hood!

Thanks for the link!

Dan
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!