& FREE Shipping on orders over CDN$ 35.00. Ships from and sold by EZvacuum USA. 2.2 x 25.4 x 30.2 cm Shipping Weight: 136 g Item model number: 61980A #18,945 in Home & Kitchen (See Top 100 in Home & Kitchen) in Home & Kitchen > Vacuums & Floor Care > Vacuum Accessories > Vacuum Bags > Upright Bags Fits Models: EUREKA Powerteam 6850 Series Canister Vacuums. to see all 5 reviews Back to list of Equipment The logical tasks/steps needed to go from an idea to a file that can drive the zenbot As-of-Dec-2012 the equipment can be operated with extreme caution. More instruction will be coming in the future, but the best thing you can do now is pick and learn a 3d CAD package. They are shockingly hard to use and you should expect spend 8+ hours going through the tutorials in order to drive the system such that all the faces have the surfaces you want and also learning how to use the snap systems to align things in 3d space (all of which will be critical when the file is handed over to the CAM software)

I think the primary appeal of Rhino is that it has a very good tutorial (... well, and its free for OS X ... for the moment) Parts that make up this system: Wiring diagram for the zenbot Picture of the heap of parts and pieces that make up the Zenbot Front of the X,Y,Z controller Back of the X,Y,Z controller The power supply that has a plug matching the X,Y,Z controller The spindle motor controller board Spindle as it was mounted when Zenbot was first worked on by Mike Lutz Spindle assembly with motor model visable Powersupply used for spindle motorThe smaller o-rings (not shown) fit the spindle. Size of the bits that will fit in the collet that we have measurement between the holes for the motor mount on the spindle (should be common with DC remote control car motors) The way the collet must be held when unscrewing it switch out the bit (if not held the bit will slam into the base of the CNC and may break) Picture of where a hex wrench that matches the collet/chuck is tapped to the zenbot

If the collet is complete unscrewed when changing bits (I suspect this is the safest way to do it When the collet is loose the bit just slides out of it A picture of the collet and the bit seperately - Copy of update email - Virtually all progress in this update (and most from last) is thanks to the continued heroics from Chris Pettus. He is the unsung hero of this project and will be the reason the machine gets to whatever level of operation that it gets to.vacuum cleaner repairs aberystwyth With that said, no one has picked up the ball on this, and I doubt Chris P or I would any time soon. power 6 cylinder vacuum cleaner c89 p6 bHelp would be welcome, especially if you know what your doing with the big CNC and/or know how useful jigs would be built for specific tasks, like circuit board millingaeg - tornado cylinder vacuum cleaner

The CNC is nearly at the point where different tracks of work will need to be done for different projects (molds vs. circuit boards). (I've also ordered a board of Renshape 460 - millable plastic for mold making - that I would be up for selling parts off of for anyone else wanting to try 3d part mold making) I know that a number of other people in the group are interested in cutting circuit boards, thats not really my cup-of-tea (at least not until I have my brain wrapped around the mold making stuff) so I'm hoping some of the other interested parties will jump in, start researching the software/router-bit/jigs that are required to do that work, and building documentation to teach others. The included bit has been measured and is 1/8", pressumibly this is really the only size the collet can hold (Might be able to hold a 3mm bit but the teeth on the collet were so close, a 3mm might slip) Numerous pictures were taken of the collet system, later to be use for instruction.

First (Clockwise, if the spindle is viewed from the top down) cut with the Zenbot since its repair. Second, counter-clockwise cut (from our examination we feel that clockwise is the correct way to use the bit that came with the machine) Through heroic effort of Chris P, all the major drive systems of the CNC are now online (Power found for spindle, drive belts found for spindle, software for X,Y,Z all calibrated) With the help of Chris C, Nathan and a few others the Zenbot was moved downstairs next to the big CNC. An initial cut was done in machine wax of the "LinuxCNC" default on LinuxCNC (only the "L", "i", and 1/4 of the "n" fit on the wax) Copy of status update email: Moved the page now that the model is clear - its a 1216 The manual for the Zenbot 1216 states that "the drive pulley diameter on this machine is .458 inches. The circumference of the drive pulley is 1.439. This means that the motor rotates .695 turns per inch (1/1.439). The stepper motors on this machine are .9 degree per step motor, which means that there are 400 steps per revolution.

Now you just need to know the micro-step settings on your drivers. The formula for calculating the steps per inch is .695 x 400 x micro-steps/step. For a 1/8 micro-step driver, the formula would be .695 x 400 x 8 = 2224 steps per inch." The stepper motors on the Zenbot 1216 at the LVL1 space are labeled as 1.8 degree per step. The steppers have 200 steps per revolution. The DIP switches on the driver are configured for 1/8 micro-steps. Using the same formula 0.695 x 200 x 8 = 1112 steps per inch. The MD30B spindle motor driver was damaged during initial test of power supply, parts are ordered/shipped for repair. Close-up of the printing on the Zenbot's spindle motor In order to get something going on the belts, I ordered: Working to figure out which belt to acquire.Method three seems the most promising given the measurements Chris and I took. After two pages of trying to work out the math, I came up with a length of 146.35mm (5.76181") for the unstretched length, durabelts calculator gave me the same thing (if I said 0 percentage stretch.

Still not sure if I have this right though. The belt vender sells belts in 1/16" increments. Oct 26 2012 - Mike L Diameter of belt grove on motor side Diameter of belt grove on spindle Distance grove to grove Zenbot has been moved to a desk in the front (broadway facing door) room. It is missing one of the rubber feet (that might have been added aftermarket). May be easiest to just replace all four - the three that are still on are clearly "stick on" type. There is no special size or shape required. PC originally wouldn't boot. Chris P. futzed with the ram in the machine (added/removed/cleaned-with-eraser) and the machine became willing to boot. Once machine was booting the EMC2/linuxcnc?/axis-software was willing to run, and upon turning on the X,Y,Z controller, the software would drive the armature. The machine is sitting with its orignal QR code facing out, this seem to be a good way point it so-as to have the x driver-motor pointing out at the user as it slides left to right BUT the config on the machine currently has both x and y configured for the machine rotated 180 degrees.

I'm working to understand the config, with the expectation that I'm going to reverse both the x and the y (the z is fine) Also critically important, all the axis are WAY out of scale. Moving the head 1.4 inches in the controlling software really moves the head very rapidly 10 inches in real space. Given the machine only has 10-20 inches of travel on x and y this makes a really easy to crash the head into the end of the rails its mounted on. Given the machine has no sensors for the end of the rails, if the software commands it there it will simply slam the head into the rails and grind the motors trying to keep moving on. (specifically moving 10" in real space read 1.3892" on the software, moving the head 10" on the y axis in real space read as 1.3762" on the software, z wasn't measured) To the right are pictures of measurements of the spindle belt groves, with the goal of computing what size belt we need to acquire Chris found a "O ring style belt" custom belt maker. is the manufacture, but they don't sell retail.

is one of the retails for them. Chris Pettus did some googling and found another zenbot user using a Wolfgang spindle and powering it with a computer power supply: Oct 25 2012 - Mike L In a back-and-forth with Chorgy he said: "The spindle I ran using a generic 13v regulated bench top that I bought from radio shack for like $30-$40." Which I'm somewhat unclear if he donated but regardless is not in the pile of equipment with the Zenbot. Chorgy also added that he really can't see the motor drawing more then 20A 12v dc max (.. through the motor controller board) and so he though a computer power supply would work. QR code label on the side of the Zenbot Oct 24 2012 - Mike L Warped photo of the QR code that attached to the Zenbot Oct 23 2012 - Mike L Following up on what I found out about the zenbot: If the zenbot gets up and running, there are number of improvement that Gerrit is already thinking about ("stops" to calibrate the arms - likely requiring a different controller, enclosure for the control systems, vacuum system, etc..)