Speaking from solid experience - Glass Bows:
- if using tip wedges, put them in in the right direction... not backwards
- if using clamps, don't use too much pressure and starve the joint. If you're using overhead clamps and steel rod, the rod bending is a clue
- when gluing the glass, it's a good idea to put the glue on the right side
- when grinding lams, remember this isn't furniture finishing... at least 60 grit, 50's better. Be sure all surfaces are rough
- almost anything crooked can be straightened with patience and a good drum sander. I highly, highly recommend the Grizzly
- On layups, take your time. The glue isn't drying that fast. If at all possible, have someone with you when laying up and discuss what you're doing and why as you go. Listen when they say, "huh?" They may be seeing you make a mistake. They will also be able to scratch your nose when you have glue on your hands.
- Don't overheat the oven. Longer at lower temp is good. Remember that the oven is going to take time to come back up to temperature, especially if you are using lots of clamps. The oven has to heat the form and the clamps. I cook at 140 degrees and it takes my oven, which is tight, a good hour and a half to get up to full temp. I cook for a total of 7 hours
- I control temp with light bulbs, changing them in accordance with the temperature in the shop, or whether I'm cooking a whole bow or just a riser (riser gets higher temp). I have an oven thermometer built into my box. Never trust a thermostat any more than you'd trust a banker.
- Get good tools. If you have a bow collection, you can probably sell much of it to finance the tools. You will only want to shoot the bows you make from now on.
I'm sure I'll have other lessons to offer as I make more mistakes.
Self Bows:
- Don't bite off more project than you can chew. Start small. A board is better than a stave, a stave is better than a downed tree. A downed tree is better than one that's still growing.
Only that one comment re self bows. That phase of my development didn't last long!