You should hire an experienced family law attorney to send him a letter with an offer to settle these issues. If he will not cooperate, you may want to file a Complaint to obtain a court order.
My response is based solely on the limited information contained in the question. It is not meant to substitute your attorney's advice.
Please consult with a local lawyer. If you like, feel free to contact me at 610-446-0690.
This answer is for informational purposes only and does not in anyway constitute and/or form an attorney-client relationship.
If you have a current order in place and he isn't following it, you could file for contempt. If you don't have an order in place, file a custody complaint to get one and mitigate these issues. You will certainly need an attorney to help you deal with all of this so I agree with my colleagues that you should consult one ASAP.
My response is based solely on the limited information contained in the question. It is not meant to substitute your attorney's advice. Additionally, my response does not trigger an attorney-client relationship.
You should both cooperate with each other. I understand though that many parents cannot cooperate or be civil. Does your current custody order state the location for the exchange? If not, you may need a more explicit order to assist in making the exchanges.