This article is from the Model Rockets FAQ, by Wolfram von Kiparski with numerous contributions by others.
This subject has been hotly debated on r.m.r. It is one of those
'emotional' subjects that find people either firmly for or against.
The bottom line is that rec.models.rockets is primarily a newsgroup for
discussing *consumer* rocketry (which covers model rocketry and high
power rocketry). Some amateur issues are discussed, but these are not
the primary focus of the group. Manufacturing your own rocket motors can
be a very dangerous thing to do, unless done properly, and with extreme
care. The odds are you will not make motors that are of any higher quality,
total impulse, reliability, or cost less than pre-manufactured consumer
It is the opinion of the editor(s) of this FAQ that you should NOT try
to manufacture your own motors. If, however, you insist on partaking
in amateur rocketry, then the editor(s) of this FAQ urge you to get in
contact with an established amateur rocketry group for guidance and