I believe my description of the way the circuit works is accurate, although a bit incomplete. One of the more exciting aspects of the dro 350 is that the firmware is easily upgradeable over a serial port. Bill havins, a user of the shumatech dro350, wrote a great article. Background other brands lathe mill dro cnc reference links. Im especially interested in hearing if anyone has used either the 350 or the 550 with the igaging scales. This allows for continued development of the software and should allow the dro350 project to. 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. Shumatech dro550 buildlog dmstudios digital playground. The artice covers where to purchase chinese scales, their installation on equipment, and general troubleshooting. Most calipers these days have external interfaces, so you could hook up a custom large display, like the way the shumatech dro350 does. It is divided into two sections, one for the pcb assembly and one for the enclosure.
I grabbed an opportunity to pick up a builtandtested shumatech dro 350 with one scale included, and picked up the other two from 800watt on ebay. One of the more exciting aspects of the dro350 is that the firmware is easily upgradeable over a serial port. The dro350 is an open project with the schematics, software, and pcb files gerbers freely available for download at this site. This allows for continued development of the software and should allow the dro 350 project to grow over time. It has most, if not all, of the features you listed. Usb and serial dro, pc and ipod practical machinist. If shows the locations for the usb and programming switch openings, but makes no suggestions for the expansion allowed by a dpu550 full daughter board.
The official dro350 users guide for software release 4. The dro550 is composed of the dro350 with the dpu550. The instructions on the shumatech web site assume that a dpu550 is being added to an existing dro 350, and that the original dro 350 case will be retained. Note that vendors constantly update their prices so the costs listed below may vary. I also looked at various inexpensive commercial units.
Yuris interface, his free uptodate free software, then scrounge used. Its also difficult for a software developer solitary or team to match the imagination and creativity of a group of highly motivated tinkerers. This serves as the users guide for both the dro 550 and the dpu550. All functions available in shumatech software release 1 for the dro550. Open hardware free to be hacked, modified, and understood by my students. The official dro 350 users guide for software release 4. 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. The board is designed to fit the dro 350 form factor and thus can leverage the existing overlay and machined enclosure. The following table lists the bill of materical needed to complete the dro 350. The construction of the dro 350 consists of the following steps.
1004 1137 718 1141 872 737 601 720 1321 471 252 929 485 32 840 1141 781 397 1448 1421 1045 86 1555 812 176 263 1397 177 436 1167 1035 595 1092