Bill havins, a user of the shumatech dro 350, wrote a. Bill havins, a user of the shumatech dro350, wrote a great article on his experiences using chinese scales. Shumatech warns that the 350 is obsolete and has some issues, but it still interests me, so if you have one, id love to hear your impressions of it. It addresses all the concerns i had about the other projects. A side by side comparison of the schematics of the dro 350 and the dro 550 will show that the primary differences occur in the power supply section providing 3. Finally, we will connect the dro to the pc to enable the transfer. Ive just finished putting together the mixed scale controller kit, and im having some trouble with my scales. Shumatech dro continued shumatech dro 350 repairs south bend 9 lathe south bend 405 lathe bench grizzly mill revisited. The documentation is first rate and the evolution of the software was done with. Choosing the right touchdro adapter for your scales yuriys toys. Ive been busy in the workshop adding a digital readout to the mill. The shumatech dro 550 i need to open this blog with a full disclosure. After several days spent cleaning, disassembling, reassembling, and testing, i finally got all axes working again.
Imho, the dro350 is a very good machine but does have a few minor problems both in the electronics and software. My various projects that may be of interest to others. Someone knows how to avoid the autooff of chinese gauges. Numbers are entered into the dro350 via the numeric keypad. The completed lathe is a thing of precision and beauty.
Ive finished the first stage of the project and am quite pleased with the results. On the mixed scale controller, both scales work fine when the displayed value is less than about 6. Dro for harbor freight 47158 based on harbor freight 93293. You will also need some tools and supplies to finish assembling the circuit board.
Scott shumate has done a masterful job of creating the hardware, software, and documentation for the shumatech dro 350. Most calipers these days have external interfaces, so you could hook up a custom large display, like the way the shumatech dro 350 does. Thanks to your suggestion i found the digital caliper adaption on jim lewis web site. Jul 22, 2009 the dro 350 and dro 550 are just position displays for manual operation, but the dro 550 does give a usb connection that can give the position data to any applications that can use it. And i think guys tune their dros to their compounds or vice versa.
Both were mounted using high density polyethylene and i was pretty happy with being able to measure with a reasonable amount of accuracy. This allows for continued development of the software and should allow the dro350 project to grow over time. The construction of the dro 350 consists of the following steps. The dro350 has a number of problems including scale jitter, rounding errors. Then we will go on the internet and get that new software. The following parts lists shows each part listed by its designator on the pcb. Dro 350 from shumatech, question about serial port.
The dro350 is a threeaxis digital readout dro for import chinese scales. I somehow have managed to mess up myshumatech dro 550. The unofficial shumatech dro 550 application notes for the mill, version 2. Sieg x2 minimill aka harbor freight 44991, grizzly g8689. Im a long time dro builder shumatech 350 and 550 systems, and really enjoy the construction process.
Am i right that i need the quadrature type board or software you made. Download opendro from which wont do much for you without the dro. But without the ability to change the firmware, it was purely an academic effort. In testing the daughter board we have found that the tacho and edge detector inputs can be a. In this article we indicate the various methods of employing the wiggler for component edge finding in the milling machine. Shumatech dro550 prices for extra parts needed to complete dro550. A while ago i got hold of this shumatech dro 350 kit to fit to my sieg sx2 mini mill. Anything i can do to make it better or more versatile than the ones you buy cheap.
The reasons i like the shumatech dros over and above all other projects and commercial offerings are as follows. After several days spent cleaning,disassembling, reassembling, and testing, i finally got all axesworking again. I went with the dro350, among other things, because i dont have a spare android kicking around. The board is designed to fit the dro350 form factor and thus can leverage the existing overlay and machined enclosure. Model engineers workshop index free ebook download as pdf file. Benchtop machines dro for harbor freight 47158 based on. Choosing a scope and logic analyzer sparkfun electronics. Hey arvidj i just picked up some arduino boards to get started learning i wonder if this is worth it for me, instead of purchase. The design intentionally mimics the shumatech dro and is intended to be used alongside one. You can get other accessories from wildhorse that will help the build go smoothly. I strongly encourage you to download and print it2 because i will be following it closely. On a followup note from the last article, i ended up contacting grizzly about the play in the spindle.
If you want to have a working dro in less than a few years get a used phonetablet. Since mr shuma has quit developing or producing his products, ive been looking elsewhere, which brought me to your project, just in time for my newish milling machine. Shumatech dro 350 users guide 0 515 010 561 prt tachometer. A dro for a mill is a nice addition for a couple of reasons. That interface works just fine on a touchscreen btw. Dro 550 construction guide free download as pdf file. It is used during preset and zero operations to enter offsets and is also used to enter information for function operations. Finding the center of rotation of a finger dial test indicator 4. It should be good practice for the upcoming project.
Shumatecheuropeanprices model engineers digital workshop. The dro350 is an open project with the schematics, software, and pcb files gerbers freely available for download at this site. Index of articles in model engineers workshop vols. It all started with erratic scale readings onfirst the z and then the y axes. The dro 350 is so well designed that the most critical portions of the design are directly imported into the dro 550 the scale interfaces and the auxtach interfaces. Shumatech dro350 continued 3122006 when i wrote my last update, i had 2 axes x and y axis operational.
Note that paul does not do any checking on gear sizes and some combinations thatare listed might not fit on the lathe. The dro 550 is a new dro that combines the advanced capabilities of the dpu550 running opendro software with the costeffectiveness of the dro 350 into a single board. Dec 15, 2009 for the chinese caliper, you should look at shumatech project, as it went recently opensource and its already cheap and working i got a dro 350 for my mill. Mar, 2015 does anyone here use the shumatech dro s. I just had a look around to show you a comparison of the scales in accuracy and resolution, and this is if there are no problems and they are working fine. Choosing the right touchdro adapter for your scales. I tried my hand at improving the humanmachine interface and was very happy with the results. I somehow have managed to mess up my shumatech dro550. Hire a chinese programmer jobs, employment freelancer. Open hardware free to be hacked, modified, and understood by my students.
One i replaced the pulley with the correct one i appear to be matching my shumatech dro within 0. It all started with erratic scale readings on first the z and then the y axes. Greetings, i want to add very inexpensive triple axis remote mounted dro to harbor freight 47158 using harbor freight 93293 digital calipers. Dro550 construction guide electrical connector printed. I dont know how reading looks like on lcd display, since i removed it, but i see no changes when reading caliper via dro 375. I think it is probably very similar to the effort needed to create the shumatech itself, and i would think it would have similar complexity and cost. The shumatech yahoo group started in august of 2003. Soldering iron just about any soldering iron will do but make sure it has a fairly fine point solder 6337 or 6040 flux core solder with a diameter between 0. Yuri has not has an opportunity to test these new absolute scales with. Easy to make drying rack, inslx paint, roller finish duration. Used thermwood model c40 cnc router new in 2004 4x8 moving table 10hp hsd spindle with auto tool changer 18hp vacuum pump 10hp dust collector. The dro350 is an open project with the schematics, software, and pcb files. The dro350 is a threeaxis digital readout dro for import chinese scales and. I want to add very inexpensive triple axis remote mounted dro to harbor freight 47158 using harbor freight 93293 digital calipers.
Had successful tests running mach 2 and some engraving software. Note that vendors constantly update their prices so the costs listed below may vary. Design hardware and firmware for a pic18f microcontroller to do a similar function to the dro350 device. Right now all my milling is manual but it might be nice to step up to cnc in the future and id certainly like to be able to use what is already attached to the.
The mill is great for doing semi accurate stuff to layout lines and simple handwheel count jobs, but if you want to do things much more accurately much quicker a digital read out is the way to go. For my test of the new tool, i will attempt to measure the wear of the saddle ways on my lathe. Dro350 digital readiout shumatech dro350 prices the dro350 is a threeaxis digital readout dro for import chinese scales and most quadrature encoders that is designed to be as capable as commercial dros but be a low cost alternative for the metalwor. Usb and serial dro, pc and ipod practical machinist.
The unofficial shumatech dro550 application notes for the. But the price is great even when you add the cost of the dongles, and the functions, display, etc. Im using two good quality chinese scales which are both rock solid on my shumatech dro 350. Sep 27, 2016 choosing the right touchdro adapter for your scales.
He fixed that on the dro 375s but they are no longer available. The dro350 is an open project with the schematics, software, and pcb files gerbers freely available for download at the shumatech site. If we look at the hardware, we have between 1 and 3 scales connected to a box that i call the dro. Mitch llewellyn made a dro for his lathe out of two digital calipers. There may have been earlier announcements, but this was the first i could find. Jul 12, 20 if you feel adventurous, look at the source code for shumatech s dro opendro project. Can you please show me the schematics of the detectorreceiver. One, it does away with having to count the number of revolutions of the cranks. The unofficial guide to installing software on the. I used the 4 caliper for the y axis and the 8for the x. Largest manufacturing technology community on the web.
This list is useful when constructing the dro 350 so that parts can be easily looked up. Shumatech dro350 february 12, 2006 digital readout. Jun 24, 2012 mini mill 3 axis dro a while ago i got hold of this shumatech dro 350 kit to fit to my sieg sx2 mini mill. Im especially interested in hearing if anyone has used either the 350 or the 550 with the igaging scales. The cgtkpage has easy to use change gears page that doesnt require any software. I also looked at various inexpensive commercial units. For example i thought id installed the 18t pulley but it was the 24t. Opendro is the open source software that runs on the shumatech dro550 and dpu550. If you need precise angle run a test indicator against a sine bar. Mini mill 3 axis dro a while ago i got hold of this shumatech dro 350 kit to fit to my sieg sx2 mini mill. I thought there was a resistor or something that needed to be removed. Drill 07242008 chasing accuracy on a rf30 milldrill with shumatech dro. The board is designed to fit the dro 350 form factor and thus can leverage the existing overlay and machined enclosure.
You can use lead free solder but it is a more difficult to work with. Much more accurate, thanks to the shumatech dro 350. Just a matter of unplugging from the small readouts and into the dro connectors. Smooth running, with practically indestructible steel gears and heavyduty roller bearings. The easiest path is the one i followed, by using the digikey connectors in the dro box. Shumatech dro electronic edge finder interface circuit one way to mount a scale on a mill the unauthorized shumatech dro 350 mill users guide, version 4 unofficial dpu550 hardware installation notes, version 2. The potential for the dro 550 to have an impact on our sales is undeniable. Dro350 auxiliary port where the edge and tachometer. On the test motor i checked, it showed1007 rpm when my.
It would be an ambitious, but not impossible project to create this device. A12 inch harbor freight caliper on x and a 6 inch on y. Please let me know if you can tell where these wires are supposed to go. The official dro 350 users guide for software release 4. The 350 is a kit, so you have to decide you can spend a couple days soldering. The automatic feed stop works flawlessly, and the ball bearing manual feed wheel is a. It is divided into two sections, one for the pcb assembly and one for the enclosure.
Opendro is an open source project to develop embedded software that runs on digital readouts dros for lathes, mills, and other machine tools. Im a long time dro builder shumatech 350 and 550 systems, and really. Looks like my only low cost choice is a shumatech dro 550l. Dro550 boxes are being supplied with modification to mount pcb from the front face of the box. I somehow have managed to mess up my shumatech dro 550. The set indicator is lit when the dro350 expects the user to enter a number on the numeric keypad. Choosing the right touchdro adapter for your scales yuriys. One of the more exciting aspects of the dro350 is that the firmware is easily upgradeable over a serial port. This serves as the users guide for both the dro 550 and the dpu550. One of the main design goals for the touchdro project was to create a flexible. Tachometer installation and operation instructions for street eliminator, comp eliminator, pro eliminator, and top eliminator tachometers the instructions for installation and electrical wiring for these tachometers follow. Display unit for digital calipers electronics embedded. I decided to title this document unauthorized because the real guide is on the shumatech.
Bill havins, a user of the shumatech dro 350, wrote a great article on his experiences using chinese scales. Back this one is 34 diameter, 5tpi, 5 travel it has some 12i threads on one side, and bearing surfaces. The dro550 is a new dro that combines the advanced capabilities of the dpu550 running opendro software with the costeffectiveness of the dro350 into a single board. A possible shumatech 350 with 550 daughterboard power. The following table lists the bill of materical needed to complete the dro 350.
That is using 7segment led displays, and driving a dvd screen will be even more involved. My z axis display freezes 75% of the time that i power up by plugging my wall mounted power supply wall wart into the wall. Again, the list is correct to the best of my knowledge but it may contain errors or omissions. Installing software on the shumatech dro 550 first we will prepare the dro to accept new software. Wildhorse innovations and therefore myself cannot be considered an impartial observer where the dro 550 is concerned. I need small team of enthusiast to brainstorm to find the best method to mount the caliplers to the axes and make the mechanical prototype. It will save your available gears and lead screw type settings on exit. A simple steam engine model engineering clearing house.