Curious how long it takes for GF staff to return messages/emails. The free spin bearing on the laser head carriage broke and I cannot find a replacement part listed to purchase on website. Normally I can wait for support but I have time sensitive orders needing to be finished .
Send photos to Support and they will invoice you for replacements and send the parts.
You might also check Etsy for others selling these.
As for the amount of time for a Glowforge response, it is variable. Auto response to emails within 24 hours. Actual responses are 3-5 days or more right now judging from posts here in the forum.