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I've toyed with the idea of a plotter but for just the occasional small window sticker I couldn't justify the cost.

Dave

Is there a low cost blade that can be chucked up in the router to allow me to cut vinyl signs? I saw one on ebay awhile back but it was $150.00.
I can cut vinly (PVC) signs in my laser but it...

Not exclusively cnc, but I found many parts here when building mine.
www.skycraftsurplus.com

Dave

Here's what I did:

For the shaft coupling I had the 1/2-10 acme screw end turned down to 1/4 and used fuel line tubing. For the thrust bearing, I'm using Joe's idea of an adjustment block holding...

I remember a website a few months ago that sold parts for DIY machines. They carried the channel used in Johns plans. Unfortunately I can't find the site again. Try searching for aluminum channel,...

Since I finished my router a few months ago, I've been experimenting with engraving sketches I do on the computer. I make them in Illustrator, convert to dxf in Rhino and generate the code in...

The Hammond 30vac xmfr Dave recommends will give you about the max voltage the board can handle (30 vac x about 1.4 for going thru the ac/dc conversion = 42-44 vdc. The board handles 44 vdc max).
...

I picked up a new Rotozip yesterday. The plan was to use my aging Dremel to cut the mount for the Rotozip, but it bit the dust at the start of the top mount. I cut the rest by hand (pretty rough, but...

[QUOTE=spalm]Ye gads, that is the part of the design that I am least proud of. Seems so hokey. When I posted it in the linear bearing threads. not one response was logged. I think that is still a...

I'm thinking about what my next machine might look like. I'd like to keep the amount of aluminum machining to a minimum, so I'll use 80/20 for the base. For the Y I'm thinking of finding some linear...

My dremel is fading fast and I'm looking for a replacement motor. I'd love to go with an actual router (I like the DeWalt DW618), But I'm worried about that weight cantalevening (sp?) off the Z-axis...

I just made this cut of my greyhound this morning. Drew it on a Wacom tablet, auto traced in Illustrator exporting as an .ai file, imported into Rhino to size and export as a .dxf. Loaded into...

I built the power supply using a 30 volt transformer. After the rectifier phase mine came out to 44VDC, which is the max for the HobbyCNC board. I'm also using 1/2-10 ACME rod with dumpsterCNCs...

After a few months of cutting, gluing, parts searching and soldering, it's working. Based on the free plans, I opted for birch ply instead of MDF because of the high humidity in my area. Although the...

I did a dry fit of the motors, leadcsrews and anti-backlash nuts on the X and Z axis. I'm using 1/4 fuel tubing and hose clamps for couplers. Everything seems to move pretty smoothly. I've got to...

Just start reading the various threads on this site. Plenty of great info and loads of helpful people who've been there, done that, and can give good advice. Take a look at the free router plans and...

All thats left is steppers and leadscrews. I had a machinist turn down the end of my 1/2-10 screws to 1/4 inch. I'll start building the HobbyCNC board tomorrow. I got an old P3 800 that should work...

Almost there! I just ordered the 3 axis kit from HobbyCNC. Also put in an order for the recommended 30VAC PS. I'm waiting until I get the steppers installed before I finalize placement of the...

Today I put the 1/2 -10 acme lead in place. I'm using dumpsterCNC's anti-backlash nuts. The thrust bearing adjustment was something I saw on this site. Good thing I did because I need a few 16's...

Well, I found out why my gantry measurements were off. While my birch ply was labeled as 3/4 inch it's really about .690. I revised all my measurements when building the x-axis and everything went...

Worked all day on getting the Y axis done. Although it still needs a few things, I'm cautiously optimistic at it's outcome. With the end pieces only clamped in place, I set the gantry on the pipes....

Check out McMaster Carr

http://www.mcmaster.com/itm/find.ASP?tab=find&context=psrchDtlLink&fasttrack=False&searchstring=8619K118

3/4 thick 4 X 8 sheet of HDPE $185.23. I think this should be...

Joe,

Interesting idea about the polyethlene (UHMW?). Will it be ridgid enough? How easily does it machine?

Dave

I picked up some 3/4 birch ply and cut the end supports. Spend the extra money and get a forstner bit for the pipe holes if you can. Using a hole saw with my gutless drill press was no picnic.
As...

As for the finish, I'm not a woodworker, so I'm not sure. I't's nice looking ply so maybe a Varathane stain to seal it.

Dave

Life keeps getting in the way of my CNC build. As you can see, I've started the torsion box. I went with 1/2" cabinet grade (birtch) ply instead of MDF. For the last week it rained everyday and both...

solarchimesam,

I was also toying with the idea of using Unistrut. Can you post some pics?

Dave

Yup...they're lasered.


Dave

Are the dowel pins called out in the jgro plans steel or wood?

Dave

I'm planning on a router based on the free plans. I've got limited power tools... saber saw, table saw, drill press and dremel.
What's the best way with limited tools to cut/mill the flats in the...