SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Jul 08, 2007, 07:26 AM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Nice Job.

Quote:
Originally Posted by Spaceship13
Ive got mine to power up with the power supply i made from a computer power supply. the steppers work just fine. they hold their position waiting for some input from the puter. make sure you read all the warnings and notes like dont unhook any wire from the steppers with power on. and i believe there are some that will. the towers are ready. iam short a keyboard and software. hmm heres a pic of mine . it had onboard temp control but iam using a feathercut powerrsupply. ok heres a pic!!!!!!!!!!!!!!!!! read all the instructions over and over and understand all what its telling you before you go. i was new to puttin together the stuff and it was real simple.Briggs make yourself a controller chip cooler similar to mine.And the fan blows the air into the box not out of the top.
Thanks Starship13,

It is nice to see completed projects. READER NOTE: the board shown is the Foam cutter package with automatic heat control and not the PRO board.

I particularly like the way he labeled the stepper wire colors onto the case to avoid confusion.
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Sign up now
to remove ads between posts
Old Jul 08, 2007, 03:42 PM
Just an A&P mechanic
Joined Sep 2002
372 Posts
lol

starship is ok too! hahahahahha heres another tip. if you think in terms of heat xfer. then just before you fix the cooler to the chip, add some xfer grease like used in puter processors and cooler to help get it to where you want it to go.
Spaceship13 is offline Find More Posts by Spaceship13
Reply With Quote
Old Jul 09, 2007, 05:36 PM
That motor isn't hot...
rosco's Avatar
Brisbane, Australia
Joined Aug 2005
425 Posts
Best step by step build I've ever seen bgriggs!
Awesome.
rosco
rosco is offline Find More Posts by rosco
Reply With Quote
Old Jul 14, 2007, 07:39 AM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Quote:
Originally Posted by rosco
Best step by step build I've ever seen bgriggs!
Awesome.
rosco
Thanks Rosco, It means alot.

I am just waitiing on the transformer to arrive before I carry on.

Bill
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Old Jul 19, 2007, 09:37 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Transformer

Well, my transformer arrived today. I am a little concerned about posting picture on how it should be wired though because I am not an electrician and 115VAC is involved......... Playing with electricity can get you killed if you don't know what you are doing. If you have any doubts about your electrical skills please seek professional help. The life you save is well worth the time you may lose.

I chose a different transformer than Hobbycnc recommends for the power supply. I purchase a 24V 10A transformer from http://www.mpja.com. The part number is 7846. The price was $17.99. I was trying to save a few dollars over the $35 transformer recommended. I hope this was not a mistake in the long run..... I have heard of several people using this transformer but I have never seen a wiring diagram.....

The forth picture shows how I think the wiring may go. Anyone here able to verify this?

Bill
bgriggs is offline Find More Posts by bgriggs
Last edited by bgriggs; Jul 21, 2007 at 05:26 AM.
Reply With Quote
Old Jul 20, 2007, 10:02 PM
Registered User
Congress, AZ
Joined Sep 2001
4,918 Posts
Really, really interesting build. Four thumbs up !

How big a table are you planning on driving with this?
GaryO is offline Find More Posts by GaryO
Reply With Quote
Old Jul 21, 2007, 03:06 AM
Registered User
Dayton, Oh. area Moraine
Joined Apr 2007
69 Posts
Do the input wires go together like this?????
Take a look here http://www.cnczone.com/forums/showthread.php?p=219798 .
Parallel 120V, series 240V.
sar1 is offline Find More Posts by sar1
Reply With Quote
Old Jul 21, 2007, 03:05 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Quote:
Originally Posted by GaryO
Really, really interesting build. Four thumbs up !

How big a table are you planning on driving with this?
I plan to use the control on a Routazilla II from http://www.kleinbauer.com.
There is a link to my machine on http://ampedworld.com/.

The plan is to then use the Routezilla to build my next router, a Joes 4'x4' Hybrid http://www.cnczone.com/forums/showthread.php?t=38220.

I Think this is about the largest Router my garage can support.

Bill
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Old Jul 21, 2007, 03:23 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Quote:
Originally Posted by bgriggs
Well, my transformer arrived today. I am a little concerned about posting picture on how it should be wired though because I am not an electrician and 115VAC is involved......... Playing with electricity can get you killed if you don't know what you are doing. If you have any doubts about your electrical skills please seek professional help. The life you save is well worth the time you may lose.

I chose a different transformer than Hobbycnc recommends for the power supply. I purchase a 24V 10A transformer from http://www.mpja.com. The part number is 7846. The price was $17.99. I was trying to save a few dollars over the $35 transformer recommended. I hope this was not a mistake in the long run..... I have heard of several people using this transformer but I have never seen a wiring diagram.....

The forth picture shows how I think the wiring may go. Anyone here able to verify this?

Bill
I talked to a friend of mine who is an Engineer at the local Verizon service. He explained that the two primaries can be wired in series or in parallel. In series, the transformer input will be 240V. In Parallel, the input is 120V. To wire in Parallel, you join the two red wires together to one side of the AC plug, and join the two black wires to the other side of the AC plug. This should produce 24V. He also offered to help me wire it up tomorrow. Stand by for more photos soon.

Bill
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Old Jul 22, 2007, 05:02 AM
QPower 18650
madhun1's Avatar
Sunshine Coast
Joined Jun 2006
1,495 Posts
Nice work so far Bill, looks like she'll perform nicely.
madhun1 is offline Find More Posts by madhun1
Reply With Quote
Old Oct 09, 2007, 07:15 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Back in the game

Well it has been a long busy summer..... When I last posted my Transformer had just arrived. I was uncertain how wire up the transformer since it is not the one that Dave Rigotti recommends on his website...... Well, thanks to some friends we were able to solve this mystery.

I began by searching in vain for a complete wiring diagram for the MPJA transformer. Apparently no one has posted one because they thought it was too simple....

Basically, what I found out was that the transformer had two sides, and input side and an output side. The input side is where the 120V is connected. In the case of the transformer I had the input side had four wires (Red, Black, Red, Black). The output side has three wires (Blue, Yellow, Blue).

To get 120V into the input side of the transformer, I joined the two Red wires together and the two Black wires together.
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Old Oct 09, 2007, 07:48 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
Power Supply Case

I was too cheap to spring for the recommended case for the power supply/driver board at $35 so I came up with an alternative. I went to Walmart and bought a Rubbermaid Keepsake photo and media box ($7.99). The box has a removable top and is large enough to hold all the components. It is easy to cut with hand tools and also see through.
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Old Oct 27, 2007, 12:17 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
The case I used is a Rubbermaid Keepsake box Part #4487. It is designed for DVD, CD 's and photo sotorage. It comes with a series of blue dividers that are useful in this build.

I start off by removing the top and taking out all the dividers and putting them aside. I used a dremel tool with a 1/8" drill bit to drill most of my starter holes. For big holes I used a Drill Master step drill set from Harbor Freight. http://www.harborfreight.com.
bgriggs is offline Find More Posts by bgriggs
Last edited by bgriggs; Oct 27, 2007 at 07:48 PM.
Reply With Quote
Old Oct 27, 2007, 12:24 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
The kit contains two fuse holders and a switch. The fuse holders hold two different sized fuses a 4amp and a 10 amp. The 4 amp fuse is used in the incoming AC (120V) line. The 10 amp fuse is on the other side of the transformer and protects the Bridge rectifier, capacitor and driver board.
bgriggs is offline Find More Posts by bgriggs
Reply With Quote
Old Oct 27, 2007, 12:33 PM
Make something. Anything!
bgriggs's Avatar
Syracuse Hancock, New York, United States
Joined Jul 2003
1,015 Posts
I used a Dremel tool with a 1/8" drill bit to make the pilot holes for the switch, and fuse holders. I then used a step drill to get the perfect fit for each component. The step drills are nice because they fit an electric screw driver.

I positioned the fuse holders nearest to the part that they would protect. The 4 amp is mear the AC power line and the 10 amp is near the bridge rectifier.
bgriggs is offline Find More Posts by bgriggs
Last edited by bgriggs; Oct 27, 2007 at 12:38 PM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log Hobby CNC 4 axis CNC Chopper driver board build. bgriggs The Builders Workshop 39 Jul 23, 2007 08:54 PM
Sold HobbyCNC 4 axis CNC controller with power supply bgriggs Aircraft - General - Miscellaneous (FS/W) 2 Apr 07, 2006 06:50 AM
how much $$$ for a homebuilt 4 axis cnc router new flyer The Builders Workshop 8 Nov 18, 2005 11:05 PM
Yak/Edge combo build, step-by-step rpvpilot 3D Flying 5 Mar 13, 2005 08:16 AM
Mountain Motors Cessna 180 Build Step by Step dulcelife Parkflyers 254 May 27, 2004 11:41 AM