The dro550 is composed of the dro350 with the dpu550. The official dro 350 users guide for software release 4. Software is available for both windows and linux and you need only a 9 pin serial cable to connect the dro 350. 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. This allows for continued development of the software and should allow the dro 350 project to grow over time. One of the more exciting aspects of the dro350 is that the firmware is easily upgradeable over a serial port. Note that vendors constantly update their prices so the costs listed below may vary. It addresses all the concerns i had about the other projects.
One of the more exciting aspects of the dro 350 is that the firmware is easily upgradeable over a serial port. Shumatech warns that the 350 is obsolete and has some issues, but it still interests me, so if you have one, id love to hear your impressions of it. Open hardware free to be hacked, modified, and understood by my students. Bill havins, a user of the shumatech dro350, wrote a great article. 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. The artice covers where to purchase chinese scales, their installation on equipment, and general troubleshooting. Usb and serial dro, pc and ipod practical machinist. All functions available in shumatech software release 1 for the dro550. 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. This serves as the users guide for both the dro 550 and the dpu550. Im especially interested in hearing if anyone has used either the 350 or the 550 with the igaging scales. I also looked at various inexpensive commercial units. The dro350 is an open project with the schematics, software, and pcb files gerbers freely available for download at this site.
Yuris interface, his free uptodate free software, then scrounge used. Emc linux machine control software but cnc fusion lists a number software. 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. This allows for continued development of the software and should allow the dro350 project to. I believe my description of the way the circuit works is accurate, although a bit incomplete. It has most, if not all, of the features you listed. It is divided into two sections, one for the pcb assembly and one for the enclosure. The board is designed to fit the dro 350 form factor and thus can leverage the existing overlay and machined enclosure. This allows for continued development of the software and should allow the dro350 project to grow over time. Forrest you are familiar with this offering dro software i played with it, butnothing fitted to a machine yet. Its also difficult for a software developer solitary or team to match the imagination and creativity of a group of highly motivated tinkerers. 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.
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