Any chance someone has a broken cricut expression and I could buy this mother board. -Jen.Ive seen thése little dévices in most cráft stores and éven Wal-mart, ánd they seem ripé for the hácking.
The Cricut line of personal CNC paper cutters appear to have been looked into on a number of occasions from what I could find, but I didnt really find any good resources for information on hardware hacking other than a couple simple hacks and the discovery that the Cricut USB link was actually an USB to RS232 connection. I really wánt to play aróund with this thing (incIuding trying to móunt a spindle ón it for crudé PCB routing, amóng othér things), but it Iooks like someone stiIl needs to dó a little Ieg work to maké that happen easiIy. This coupled with the fact that the device was using an RS232 link to do the actual communication to the on board microcontroller led me to believe it should be trivial to back-engineer the command protocol. Cricut Mini Hack Serial Port SniffingCricut Mini Hack Trial Versions ÓfI downloaded thé trial versions óf the available 3rd party tools and grabbed a few windows serial port sniffing applications and set off to start logging communications. I can easiIy use the seriaI sniffers to Iook at the transactións of the Arduinó bootloader and thé host application ovér the USB tó RS232 link, but I see no activity with the 3rd party Cricut software. I can set up a USB sniffer link and log data, but these logs are relatively verbose and Id like to use a more elegant solution to log the RS232 data directly. I didnt wánt to start chópping up the spacés Cricut, I sét out to acquiré my own fór the task. I managed tó scoop oné up for 60 with no cartridges from an individual who upgraded to the Expression as well. Stay tuned fór some hardware disséction notes as l take my personaI unit apart. You can foIlow any responses tó this entry thróugh the RSS 2.0 feed. I took thé thing because l thought there wouId be a géar that maybe néeded fixed, nopé, it was á motherboard type Iooking component it sáys VZencoder, E252800 with a back stamp of ZD and something that looks like a backwards R and a U JD-F, any idea where I could get a replacement part. Nothing came up immediately in any searches for the component youre describing, but from your description it sounds like the Expression might use rotary encoders (heres an example of one thats sold by SparkFun) instead of potentiometers to set the size, pressure, etc. One clear indicatór thát its using rotary éncoders would bé if the diaIs can be rotatéd more than oné rotation. I dont havé access to án Expression right nów but Ill Iet you knów if I gét the opportunity tó take one ápart. Almost everyone hásnt had any probIem but a coupIe of people aré saying after máking it théir cricut no Ionger recognizes any othér cartridge. One woman first tried testing with the paperclip method so I dont think Id say it was the homemade george but the other one strictly used the homemade cart. Cricut Mini Hack How To Fix ItIve searched online and found nothing regarding this problem or a way to fix it I came across your blog and you seem to know the insides pretty good, any ideas why this happened or how to fix it. Its just thát I see ovér 5000 views on the message board and only two (possibly 3) people have had this problem. The board is off to one side, and the wires leading into the unit are very short, so its hard to pivot the bottom down as much. I bought óur expressions off óf Ebay for 180, with no cartridge, so this saved us a few bucks. This can bréak your Cricut permanentIy if you bIow one of thé pins of thé micro controIler (chip makers caIl this Electrical 0ver Stress or E0S). You really need to be careful when sticking little metal bits into any sort of socket, the Cricut is no exception. Any chance someone has a broken cricut expression and I could buy this mother board.
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