Finished cutting the Bottom Torsion box ribs, they fit very tight and all even.

got a chance to finish the bottom torsion box. it weights only 46.5 lbs.

very nice, i'm in the starting process of getting all of the parts to build one myself.
what software are you using?

cadd to draw the machine or the cnc control software?

Joe

I took a video with a webcam (all i had at this time) the machine cutting at 80ipm one of the bottom gantry torsion box ribs. it is 8.9meg so i guess i can e-mail if you let me know where to send.

Joe

i'd like to see it joe, ronsam3j@bellsouth.net

I,d love to see that alose if you don't mind...

patrick@choquette-mousseau.com

thanks

ME TOO! thorsgaardATsrt.com

sent, let me know what ya think.

Joe

I was able to finish cutting out the last couple of parts for the Gantry Bottom Torsion Box.

Gantry Bottom Torsion Box Complete.

about the video:
Hey, JOE! That's pretty sweet! I like the vacuum skirting.. You gots some major speed advantages o'er mine...going by the video, if ya slow it down to a quarter speed, that's MY machine

'scuse me for not reading all the forums, but what's the plan here? - ya gonna make the rig, then sell plans, or kits? or..?

On the Projector front: I secured a 20" monitor.. Little afraid of it since it's a newbie project, and 20 inchers are experimental.. I don't know the specs, but I'll find out, since my best buddy's a computer tech guru (who's selling me the monitor) After some readin', I might end up trading(?) with someone for a 15"(?) on the trading post portion..

I will be able to cut the parts for people and make a list of hardware that would be needed to complete it, the less i would have to ship the cheaper it would be, most everything else came from Enco so it can be had from one place and very cheap, I will put together a price list for everything parts I will provide and the other parts needed so people will know what the total cost would be around.

Joe

What sort of total price for everything: your parts, locally source HW, motors and controller???

Hi Joe!
Great job. You are a ture inspiration to me. I made a cnc router too based on your designs. I can post some pictures of my machine if you like. I would also like to see the video of your machine cutting at 80ipm at jetijs@emuprim.lv

BTW I'm from Latvia (Europe) so sorry about my english!

yea post some pictures in the cnc section here, start a post on yours, if you have build pictures.

Thanks, Joe

ps video send

I will be working that up as soon as i finish this build.

Joe

Awsome video Joe! dang it I got to get building version 1, took out all my parts last nite quick question though Joe. I've sorted the parts out and know where they go except for 4 blocks which have a large center hole and 1/8" holes drilled in each corner what are those? motor spacers?

Motor spacers should be three unless i put one to many in, can you take a picture and e-mail to me?

Thanks, joe

can i have that vid joe? foamcows@yahoo dot com

Thanks for the video Joe. (and for all the email assistance lately)

Looks like you are doing multi-pass in that video just to cut out a basic shape. Is that necessary with your new machine?

I'd love a peek at that vid too Joe..
thanks in advance

mr.fox@virgin.net

A lot of cam programs i have noticed has a default of 0.15" stepdowns for the 1/4" bit so i left it at that.
you can go deeper, but i always like to be safe, as you see it does not take to long to cut parts out.

I will see if i can find a chart for this.

Joe

Just had the chance to watch the movie file. A truly incredible speed. Awesome!!! My router makes a full path on y axis form one end to another in 5 minutes at full speed. My motors run ar 120rpm at highest speeds. Are your motors faster or is it the leadscrew's, that makes such speed possible?
Great job!

My second machine cut at 40ipm so i would think you would be able to cut at that speed.
what is your power supply you are using, motors and leadscrew?

it is a combination of things to gain speed.
1. power supply (mine is 33.7vdc 10a)
2. amps of motors (mine are 3a)
3. leadscrews (mine are 1/2"10tpi I bought two for 6.99 each and the nuts I used in my antibacklash are .99 each)

Joe

Hmm,
I use dynamo 3 Axis stepper system from www.stepperworld.com
The motors run at only 3.3v and are powered by regular computer power suply. I don't know about amps.
The leadscrew's I use are 8mm in diameter with 1.2mm step. That way the axis moves about 1,2mm per one motor revolution. I guess I will have to buy the hobbycnc motors and board for my new design in order to achieve more speed.

One problem is the power supply you should atleast use 24vdc, to get the preformance out of the motors, the controllor and motors should be fine, do you have the model and model of motors? link?

Joe

Hello Joe,

Awesome project!!! I have only locked at the pictures you have posted and I can only say R E S P E C T ! ! !

I would really like a copy of the video, please send it to thomas.jacobson@brevet.nu

Good luck!!

Regards

TJ

Check out the dynamo system from http://www.stepperworld.com, that's what I have.
I also just sent you the whole documentation of this system I've got per e-mail. Please let me know what you think about it!
Thank's.

Hats off to you Joe. Your new CNC looks like a machine to have.
The video shows the results.

Keep up the good work.



PS
Thanks for the tip on the LCD kit.

Thanks, And i have to return the compliment on your DIY RPTV...

Here are the CNC Router Support End pieces, weight is 10lbs each side.

I'm currently working on redrawing the [Haas Box] parts in my program. (for me to cut)... I STILL wanna cast them in aluminum... ...mebbe add fins on top..? heh heh

Joe

thanks for sending me the vid!
While my girlfriend thought i had lost my marbles, i enjoyed a great bit of routing porn

seriously good work man

Thanks for the video Joe... Very inspiring!

How big is the bed? what's the biggest piece you can lay there?

Cutting area is 25"x48"x7" now

Thanks Joe. I am still amazed that you can build a cnc out of mdf

MM

Joe,

I'm the guy that was asking how big a machine it took to cut out your new router. Rather than splice it up, due to table size limitations, I'm thinking I could get it cut out on some local machine. So If you would place me in line for a copy of the g code and drawings I would appreciate it. Just let me know what I owe you and I'll send you some money (paypal). Also, I would like to see the video too.

Thanks,

Rick

Thanks... other question...

What do you use to hold the part in place...

i can see side bars, do you use any other parts to fix smaller pieces?

right now because i cut from 24"x48" pieces i use clamps on the outside, but when I finish this one I will have 4 miter channels screwed down to the table top into the torsion box ribs. since the channels are 1/2" tall, i can then used 3/4" mdf in between them to alow 1/4" cutting surface above it. here is a picture of what i mean and the pieces on either side of it instead of 1/2" like they have i will have the 3/4"

Hey Joe question for ya, i'm starting up my cnc now (finally) and have been kicking around putting the gantry lead screw to the side rather than down the middle if the unit is rigid enough that should not cause a problem right? my reasoning is then i could have an open bottom unit which I could just plunk down on a full sheet of material 4X8 and move it to another section to cut more parts without having to resize the sheet.

You would need to install a leadscrew on both sides and then run a belt drive system to it, it will twist on you if you try it on one side only.

Joe

i wondered about that, i had been looking at a belt system from grainger

When you want to use 1 motor and your leadscrew are not in the middle , then you have a problem. Here you can see an easy solution for this problem. The red and green lines are small steel cables and the rollers are as here below.

Nice setup but it defeats the purpose of moving the leads to the outside of the gantry area, your cables would still cross into the cut path. What I was envisioning was an open bottom structure as would be on a unit that was using a plasma or gas cutting system, you wouldn't want any hardware under the cutting apparatus. with an open bottom unit you could feasibly set it down on a full 4X8 sheet of material and move it around as you cut parts from it this way you could get a higher material yield by not having to cut your 4X8 into pieces small enough to fit between the gantry uprights.

Turn the entire machine upside-down and put long legs on it.

NOw that was some original thinking! that would actually work ;-)

kableschlep
its not cheap and it isn't origianl but
it works

I use it on the cnc machine I build at work all the time
I'll have to grab some photos for you guys I used to hang around the zone
a bit too I just don't have time anymore

but need less to say I build cnc machine
that are basicly a upright cnc lathe with x being 26" y 36" and A is rotary
running a 5/8" carbide cutter that is 11" long

www.bobcat.ca/stuff/carver.jpg
is a pic of a older machine we used to build with a themro forming oven on top

like to see more, maybe start a post here in the cnc section here.

Joe

How is it going with your CNC project Joe? Haven't seen any new pictures in ... 8 days now....! Or, maybe I'm just spoiled

We are all waiting for an update of your lovely project

OT: I would be pleased if I could see the video of your masterpiece. My e-mail is thomas.jacobson@brevet.nu

Regards,
TJ