There are facilities for manual routing. Click the "trace" button on the toolbar. Are you trying to auto-route a board? Auto-routing almost always produces unacceptable results.ronydc said:THERE IS NO FACILITY IN THE [OrCAD] SOFTWARE ( I FEEL SO) THAT WE CAN MANUALY DRAW A TRACK..!!
dear friend.. kender.
AUTOROUTING IS FORCEFULLY MADE BY orcad
because we cant do MANUAL ROUTING AT ALL ...!!
THTS THE PROBLEM WITH ORCAD.
1> We cant do manual routing and 2> orcad forces us to do the AUTOROUTING ONLY.
parinda said:Hi all
ok this is the way i do for single side boards in orcad layout
1.draw what ever circuit in orcad capture and save it (.MNL file) in appropriate place
N.B if u can assign appropriate foot prints to each and every component then making thing will be bit easy
2.open orcad layout
3. make a new file file-->new
4. then choose appropriate .tech file (in orcad/layout/data)
for through hole components design choose JUMP6035.TCH ,JUMP5535.TCH or JUMP6238.TCH
for smd design 2BET_SMT.TCH (sear for others for more detail)
for thro/smd design 1BET_ANY.TCH ,2BET_THR.TCH or 3BET_ANY.TCH
5. then open your .mnl fie
6. then select top layer
7. using obstacle tool draw a boundary of your pcb as required
8.then drag the component inside to the obstacle u draw (boundary) and place properly
9. goto tool --> layers---->select from spread sheet----->select top layer and set it as jumper layer ( R-click -->properties--> jumper layer radio button)
bottom layer to be routing layer
for all other layers ---> unused routing
10. switch off "online drc"
11. file menu auto-->autoroute--->board ,thous route the board automatically and use jumpers when ever required according to .tech file u choose
12. if u have some unrouted nets then do manual routing by pressing shove track mode, edit segment mode, add/edit route mode buttons (each have specific functions )
13. if u want to use jumper goto tool-->jumper --->new
in there select appropriate foot print ( choose jumper library and there are many jumpers in different widths )
place jumper where u want place and make connection to the jumper with "connection tool " and delete the unnecessary nets (select "connection tool" and L.click on the net where u want to delete and it will ask for confirmation to delete)
and proceed with your manual routing
i usually autorout the board and re adjust the routings and width of traces by manually
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