Jump to content

Copy Carver


Recommended Posts

I just finished one, basically identical to David Myka's rig except that I joined the paired pillow blocks on the R & L sides with metal instead of wood, and placed each of the pairs a little closer to each other so that I'd get a little larger range of workable area.

4' x 4' sheet of 3/4" plywood, braced on the back (glued & screwed), 1-1/4" linear rod & pillow blocks to match. The whole works is hinged to the wall of my garage, so that I can tilt it up & store it out of the way to save space. Its only about a month old, haven't used it yet.

I'd throw up a pic if I wasn't sitting in Anchorage typing this...

Link to comment
Share on other sites

I made one like David's years back, but we had pillow blocks on either side, where it looks like David's has bar clamps. And like Erik it was all metal. Erik called the two L/R bearings "pillow blocks" but actually I've always referred to those as linear bearings, and when I say pillow blocks L/R I mean rotating bearings attatched to the center bar.

I can't tell from the pics, but on David's I wonder if the center bar stays still, and the bearings on the main apparatus are used for both sideways and up/down motion. Perhaps those bar clamps aren't tight and the bar rotates in the clamping harness. Anyway we felt that the bearings should all remain linear to increase life, so for ours the bar rotated on pillowblocks. It was great. We did some great stuff on it. Unfortunately I don't have any room for one now. :D

The few principles I can contribute that aren't here yet are that the base needs to be 100% stable. We had a steel table. To us, a ply table could wow. So I like that Erik braced his. We had MDF on top, but the "real" table underneath was steel. If you have a twist in the table it is brutal on the copy. If its a neck, your profile can distort from low frets to high, and from treble to bass. We also used all steel for the center harness. David's is so thick that it's probably fine, but we didn't want to use wood and have it move over time. My partner was a welder so it was easy. For most of us (including me now) it has to be made out of wood, and that's fine as long as you're sensitive to the fact that it can move. Maybe with my space limitations I'll steal Erik's idea and make one that's hinged.

Link to comment
Share on other sites

I've been l;ooking at getting this one:

http://www.wood-carver.com/

Problem is I emailed them and never got a response, so how do I trust them with the rest of the transaction?

9" Universal Model - $ 2750.00 :D might just be cheaper to buy a welder and build your own.

Link to comment
Share on other sites

This is the one that My old man and I finished building a few weeks ago. I've not yet had the chance to prectice with it and get it dialed in but when I do I'll post some pictures of it.

The rollers are just $2 bearings and shimmed with washers. Every roller is adjustable for about 1/2 inch of travel. This way it is easier to level if the tracks are not perfect.

We've basically just made our own pillow blocks. Total cost was around $100CDN, that was just for bearings and the router. The meatal was just scrap we had laying around.

100_1145.jpg

pic 1

pic 2

pic 3

pic 4

pic 5

pic 6

pic 7

pic 8

Link to comment
Share on other sites

What bits would be used with one of these to get an exact copy of a neck? As do u guys use drimils with them or routers?

Mine is a $30 1/4inch shank laminite trimmer. and right now i have just a straight bit in it. Guitarfrenzy could most likely give more input on which bit works better.

Link to comment
Share on other sites

That home made one looks nice Guitar Guy, but Iwould haved re-enforced the single tube design from the back brace to the front router and stylus. I realy don't know if it would be necessary, but I like sturdy looking machines...

And 'frenzy uses the round bit with a round stylus if I'm not wrong. Which is the set up I'm designing. As soon as I get it finished, I will send it to Brian to place it in the advanced section.

Link to comment
Share on other sites

That home made one looks nice Guitar Guy, but  Iwould haved re-enforced the single tube design from the back brace to the front router and stylus.  I realy don't know if it would be necessary, but I like sturdy looking machines...

And 'frenzy uses the round bit with a round stylus if I'm not wrong.  Which is the set up I'm designing.  As soon as I get it finished, I will send it to Brian to place it in the advanced section.

Thanks, And I was thinking the same thing about re-enforcing the single tube. Just messing around with it i can see some side to side play. I'm thinking an x across the span between the side rollers might do the trick and still allow it to pivot correctly.

Link to comment
Share on other sites

Yes, Maiden is correct, I use a 3/4" roundnose bit, and 3/4" stylus ball, but sometimes I have better results with a slightly oversized stylus, which you can get both from Terrco. Although the first one I used was a 3/4" round wooden ball that you can get from a Crafts place, just get one with a hole predrilled in the middle, and then tighten the correct sized screw into it, then hacksaw the head off of the screw, chuck it in the stylus and your ready to go. Just a cheap method.

Link to comment
Share on other sites

Yes, Maiden is correct, I use a 3/4" roundnose bit, and 3/4" stylus ball, but sometimes I have better results with a slightly oversized stylus, which you can get both from Terrco.  Although the first one I used was a 3/4" round wooden ball that you can get from a Crafts place, just get one with a hole predrilled in the middle, and then tighten the correct sized screw into it, then hacksaw the head off of the screw, chuck it in the stylus and your ready to go.  Just a cheap method.

I dont want to take credit for this idea because it's someone elses. But, Have you tried chucking your router bit in a drill press and drilling it into some nylon or UHMW thats clamped in place. Lube the void left by the router bit with liquid wrench or some other dry lube. Then remove the bit and chuck a rod that is to be used for the stylus. Then , with the stylus rod locked at the right height, fill the cavity with epoxy around the tip of the stylus rod. When it dries you will have a perfect copy of the cut that the router bit makes.

I tried it with the straight bit and it seems to work good. Havent really used it extensively tho

Link to comment
Share on other sites

  • 1 year later...

Thep.

Interesting......

I;ve seen something similar before, but I don't think the wheels were raised above the worktable, and woodchips would be a serious issue.. Yours seems to overcome that problem, but I dont see how you get a "Z" axis. How does yours tilt for height? One wheel on each side and the entire assembly tilts on the wheels, but I see another wheel on the rail towards the back....

Edited by postal
Link to comment
Share on other sites

I just finished one, basically identical to David Myka's rig except that I joined the paired pillow blocks on the R & L sides with metal instead of wood, and placed each of the pairs a little closer to each other so that I'd get a little larger range of workable area.

4' x 4' sheet of 3/4" plywood, braced on the back (glued & screwed), 1-1/4" linear rod & pillow blocks to match. The whole works is hinged to the wall of my garage, so that I can tilt it up & store it out of the way to save space. Its only about a month old, haven't used it yet.

I'd throw up a pic if I wasn't sitting in Anchorage typing this...

I'd like to see some pics when you get the chance. I like the idea of being able to store it away.

Link to comment
Share on other sites

Thep.

Interesting......

I;ve seen something similar before, but I don't think the wheels were raised above the worktable, and woodchips would be a serious issue.. Yours seems to overcome that problem, but I dont see how you get a "Z" axis. How does yours tilt for height? One wheel on each side and the entire assembly tilts on the wheels, but I see another wheel on the rail towards the back....

The backboard is hinged to a platform that moves on the wheels. So the main thing you see, the swingbox, is only attached with the hinge, so it moves up and down.

Edited by c.thep
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...