<?xml version='1.0' encoding='utf-8'?>
<!-- Created by Charles Hoffman, CPA 2025-03-22 -->
<!-- Public Domain Dedication: https://creativecommons.org/publicdomain/zero/1.0/ -->
<schema
  xmlns='http://www.w3.org/2001/XMLSchema'
  xmlns:xbrli='http://www.xbrl.org/2003/instance'
  xmlns:link='http://www.xbrl.org/2003/linkbase'
  xmlns:xlink='http://www.w3.org/1999/xlink'
  xmlns:dm='http://www.xbrlsite.com/dm'
  xmlns:generic='http://xbrl.org/2008/generic'
  targetNamespace='http://www.xbrlsite.com/dm'
  elementFormDefault='qualified'
  attributeFormDefault='unqualified'>
  <annotation>
    <appinfo>

      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/definitionLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='dm-ReportToComptroller-rules-def.xml' />
      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/definitionLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='dm-ResourcesRollUp-rules-def.xml' />
      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/definitionLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='dm-LiabilitiesRollUp-rules-def.xml' />

      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/labelLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='../disclosures/disclosures-lab.xml' />
      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/labelLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='../base/occ-lab.xml' />

      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/labelLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='../disclosures/disclosures-doc.xml' />
      <link:linkbaseRef xlink:type='simple' xlink:role='http://www.xbrl.org/2003/role/referenceLinkbaseRef' xlink:arcrole='http://www.w3.org/1999/xlink/properties/linkbase' xlink:href='../disclosures/disclosures-ref.xml' />

    </appinfo>
  </annotation>
  <import namespace='http://www.xbrl.org/2003/instance' schemaLocation='http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd' />
</schema>
