{"id":14108,"date":"2026-10-13T23:20:47","date_gmt":"2026-10-13T23:20:47","guid":{"rendered":"https:\/\/2dscanner.com\/?p=14108"},"modified":"2026-11-07T23:43:55","modified_gmt":"2026-11-07T23:43:55","slug":"scanner-2d-para-cad-dxf","status":"publish","type":"post","link":"https:\/\/2dscanner.com\/pt-pt\/blog\/scanner-2d-para-cad-dxf\/","title":{"rendered":"Scanner 2D para CAD: da digitaliza\u00e7\u00e3o da divis\u00e3o \u00e0 planta em DXF"},"content":{"rendered":"

A maioria das plantas ainda come\u00e7a como n\u00fameros num esbo\u00e7o e termina como linhas que algu\u00e9m volta a desenhar em CAD. Cada passo interm\u00e9dio \u00e9 uma oportunidade para ler mal um valor, esquecer um canto ou partir do princ\u00edpio de que uma parede \u00e9 reta quando n\u00e3o \u00e9. Um scanner 2D para CAD elimina esse passo: mede a divis\u00e3o como um conjunto de pontos e entrega-lhe um ficheiro DXF que abre diretamente no AutoCAD ou em qualquer outro programa CAD.<\/p>\n

Este guia acompanha todo o percurso, desde a coloca\u00e7\u00e3o do scanner na divis\u00e3o at\u00e9 uma planta limpa e redesenhada no seu desenho. Explica o que cont\u00eam os ficheiros exportados, como integr\u00e1-los no seu desenho e os poucos problemas que surgem quando uma divis\u00e3o real encontra um desenho CAD.<\/p>\n

Porque \u00e9 que o CAD precisa de um contorno medido e n\u00e3o de uma lista de n\u00fameros<\/h2>\n

Uma fita m\u00e9trica ou um medidor laser de dist\u00e2ncias d\u00e1-lhe comprimentos. O CAD, por\u00e9m, precisa de posi\u00e7\u00f5es. Assim, para transformar comprimentos numa planta, assume \u00e2ngulos, normalmente de 90 graus, e o desenho herda discretamente todas as suposi\u00e7\u00f5es feitas em obra. Consequentemente, quando a divis\u00e3o est\u00e1 fora de esquadria, a planta fecha no papel, mas n\u00e3o na realidade.<\/p>\n

Um contorno digitalizado funciona ao contr\u00e1rio. Aqui, cada ponto tem a sua pr\u00f3pria posi\u00e7\u00e3o relativamente ao scanner, pelo que paredes, cantos e \u00e2ngulos entram no desenho tal como s\u00e3o. Por outras palavras, desenha a divis\u00e3o que existe e n\u00e3o a que esbo\u00e7ou.<\/p>\n

O que o 2Dscanner exporta<\/h2>\n

Quando uma digitaliza\u00e7\u00e3o termina, a app pede um nome de ficheiro. Assinale a op\u00e7\u00e3o de exporta\u00e7\u00e3o e a app gera tr\u00eas ficheiros de uma s\u00f3 vez, cada um com uma finalidade diferente.<\/p>\n\n\n\n\n\n\n\n
Ficheiro<\/th>\nO que cont\u00e9m<\/th>\nPara que serve<\/th>\n<\/tr>\n<\/thead>\n
DXF<\/td>\nA planta com todas as digitaliza\u00e7\u00f5es e as linhas retas detetadas automaticamente pela app. As fotos e as medi\u00e7\u00f5es feitas com o ERA1D s\u00e3o acrescentadas como refer\u00eancia de imagem.<\/td>\nAbrir diretamente no AutoCAD ou em qualquer programa CAD<\/td>\n<\/tr>\n
CSV<\/td>\nA nuvem de pontos em coordenadas X, Y<\/td>\nImportar para o ArchiCAD ou outro software que leia coordenadas<\/td>\n<\/tr>\n
TXT<\/td>\nOs dados da digitaliza\u00e7\u00e3o para o 2Dscanner Editor (Windows e macOS)<\/td>\nRever, editar e combinar digitaliza\u00e7\u00f5es num computador<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Os ficheiros s\u00e3o pequenos e ficam no seu telem\u00f3vel at\u00e9 os enviar. Por isso, podem seguir diretamente da obra para o escrit\u00f3rio por email, por uma app de mensagens ou por armazenamento na nuvem, sem necessidade de conta nem de subscri\u00e7\u00e3o.<\/p>\n

Da divis\u00e3o ao DXF: o fluxo de trabalho em obra<\/h2>\n
    \n
  1. Coloque o scanner<\/strong> no trip\u00e9, perto do centro da divis\u00e3o, com boa visibilidade para as paredes mais importantes. Quanto mais perto do centro, melhor: assim, o laser incide nas paredes de frente e n\u00e3o num \u00e2ngulo muito agudo. No caso de cozinhas e carpintaria embutida, essa \u00e9 a parede onde v\u00e3o ficar os m\u00f3veis; o restante mobili\u00e1rio pode ficar onde est\u00e1.<\/li>\n
  2. Execute a digitaliza\u00e7\u00e3o autom\u00e1tica.<\/strong> Uma rota\u00e7\u00e3o completa de 360\u00b0 regista at\u00e9 2000 pontos, um a cada 0,18\u00b0, em cerca de quatro minutos. A app desenha a planta em tempo real atrav\u00e9s de Bluetooth, pelo que v\u00ea as falhas enquanto ainda est\u00e1 na divis\u00e3o.<\/li>\n
  3. Complete as zonas ocultas com uma segunda posi\u00e7\u00e3o.<\/strong> Se uma coluna ou um arm\u00e1rio alto tapar parte de uma parede, mude o scanner de s\u00edtio e digitalize novamente. A app une digitaliza\u00e7\u00f5es consecutivas atrav\u00e9s de um ou dois cantos, de um ou dois autocolantes de refer\u00eancia, ou de duas linhas retas vis\u00edveis a partir de ambas as posi\u00e7\u00f5es. As duas linhas n\u00e3o precisam de se intersetar e cada digitaliza\u00e7\u00e3o pode atingi-las num ponto diferente.<\/li>\n
  4. Acrescente digitaliza\u00e7\u00f5es verticais quando necess\u00e1rio.<\/strong> O scanner tamb\u00e9m digitaliza na vertical, pelo que pode registar cortes de paredes, v\u00e3os de janelas e portas ou al\u00e7ados. A coluna central do trip\u00e9 desliza na horizontal, de modo que o scanner fica afastado das pernas e pode ser colocado no meio de um v\u00e3o de janela.<\/li>\n
  5. Nivele o scanner para obter a melhor precis\u00e3o.<\/strong> Nas digitaliza\u00e7\u00f5es horizontais, o aceler\u00f3metro integrado mede a inclina\u00e7\u00e3o e corrige os pontos como se o scanner estivesse perfeitamente nivelado. Ainda assim, vale a pena nivel\u00e1-lo no trip\u00e9. Uma parede real raramente est\u00e1 perfeitamente a prumo, pelo que n\u00e3o \u00e9 igual a todas as alturas, e uma digitaliza\u00e7\u00e3o inclinada interseta-a a alturas diferentes ao longo da divis\u00e3o. Quando precisar da m\u00e1xima precis\u00e3o, nivele primeiro o scanner; uma base de nivelamento para trip\u00e9 torna esta opera\u00e7\u00e3o r\u00e1pida.<\/li>\n
  6. Guarde e envie.<\/strong> No final da sess\u00e3o, a app re\u00fane todos os ficheiros num \u00fanico ZIP e pergunta-lhe de imediato se o pretende enviar. Se n\u00e3o o enviar, os ficheiros continuam dispon\u00edveis no gestor de ficheiros da app e, em Android, ficam tamb\u00e9m guardados na pasta Documentos do telem\u00f3vel.<\/li>\n<\/ol>\n

    Abrir o DXF no AutoCAD<\/h2>\n

    O DXF abre como qualquer desenho. Utilize OPEN<\/strong> e defina o tipo de ficheiro como DXF para iniciar um novo desenho a partir da digitaliza\u00e7\u00e3o, ou utilize INSERT<\/strong> para o inserir como bloco quando a divis\u00e3o pertence a um desenho de projeto j\u00e1 existente.<\/p>\n

      \n
    1. Fa\u00e7a zoom \u00e0 extens\u00e3o<\/strong> (ZOOM e depois E) para ver toda a digitaliza\u00e7\u00e3o no ecr\u00e3.<\/li>\n
    2. A escala j\u00e1 est\u00e1 correta.<\/strong> O DXF exportado pelo 2Dscanner cont\u00e9m as unidades que selecionou na app, pelo que a planta entra \u00e0 escala certa sem necessidade de redimensionar.<\/li>\n
    3. Bloqueie as camadas da digitaliza\u00e7\u00e3o.<\/strong> O DXF chega j\u00e1 organizado em camadas que come\u00e7am por 2DS_ (por exemplo, 2DS_POINTS para os pontos e 2DS_LINES para as linhas m\u00e9dias), e cada digitaliza\u00e7\u00e3o \u00e9 um bloco separado. Bloqueie estas camadas e desenhe as suas paredes numa nova camada por cima. A digitaliza\u00e7\u00e3o fica por baixo como refer\u00eancia medida e pode deslig\u00e1-la para impress\u00e3o.<\/li>\n
    4. Oriente a planta.<\/strong> A digitaliza\u00e7\u00e3o entra orientada tal como estava o scanner. Utilize ROTATE<\/strong> ou ALIGN<\/strong> sobre uma parede de refer\u00eancia para a fazer coincidir com a grelha do seu projeto.<\/li>\n<\/ol>\n

      Dos pontos a paredes limpas<\/h2>\n

      O 2Dscanner n\u00e3o exporta apenas os pontos digitalizados para o ficheiro DXF. Gera tamb\u00e9m linhas m\u00e9dias, calculadas pelo m\u00e9todo dos m\u00ednimos quadrados. Estas linhas m\u00e9dias s\u00e3o amplamente utilizadas para criar um desenho final preciso.
      \nOs resultados mais limpos obt\u00eam-se digitalizando perto do teto, com o trip\u00e9 elevado acima da altura do mobili\u00e1rio. L\u00e1 em cima n\u00e3o h\u00e1 m\u00f3veis nem mais nada no caminho do laser, pelo que o scanner regista normalmente um contorno limpo e cont\u00ednuo da divis\u00e3o, e as linhas resultantes ficam prontas para o comando de equidist\u00e2ncia (offset). Se a digitaliza\u00e7\u00e3o tiver sido feita com obst\u00e1culos no caminho, o desenho pode precisar de alguma limpeza para produzir linhas m\u00e9dias vermelhas mais precisas. No entanto, isto pode ser bastante demorado e muitas vezes n\u00e3o \u00e9 necess\u00e1rio apagar um grande n\u00famero de pontos digitalizados. Nesses casos, pode simplesmente desenhar a sua pr\u00f3pria polilinha diretamente sobre a digitaliza\u00e7\u00e3o.<\/p>\n

      Outros programas de CAD e de design<\/h2>\n

      O DXF \u00e9 o formato de interc\u00e2mbio comum do CAD, pelo que o mesmo ficheiro funciona muito para al\u00e9m do AutoCAD. Por exemplo, no ArchiCAD, abra ou junte o DXF, ou importe as coordenadas CSV. No Revit, introduza-o atrav\u00e9s de Import CAD ou Link CAD. A maioria dos outros programas de CAD e de design de interiores que leem DXF segue o mesmo padr\u00e3o: importar, bloquear a digitaliza\u00e7\u00e3o na sua pr\u00f3pria camada e desenhar por cima.<\/p>\n

      Problemas comuns e como resolv\u00ea-los<\/h2>\n\n\n\n\n\n\n\n\n
      Problema<\/th>\nCausa prov\u00e1vel<\/th>\nSolu\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n
      A planta est\u00e1 rodada<\/td>\nOrienta\u00e7\u00e3o do scanner em obra<\/td>\nROTATE ou ALIGN em rela\u00e7\u00e3o a uma parede de refer\u00eancia<\/td>\n<\/tr>\n
      Falhas atr\u00e1s do mobili\u00e1rio<\/td>\nSem linha de vis\u00e3o a partir do scanner<\/td>\nDigitalizar a partir de uma segunda posi\u00e7\u00e3o e combinar<\/td>\n<\/tr>\n
      Pontos soltos fora da divis\u00e3o<\/td>\nO laser passa por portas abertas ou vidros<\/td>\nApag\u00e1-los ou deix\u00e1-los na camada bloqueada da digitaliza\u00e7\u00e3o<\/td>\n<\/tr>\n
      Os cantos n\u00e3o t\u00eam 90\u00b0<\/td>\nA divis\u00e3o est\u00e1 fora de esquadria<\/td>\nMant\u00ea-los: essa \u00e9 a geometria real<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      E a digitaliza\u00e7\u00e3o de desenhos em papel?<\/h2>\n

      Algumas pessoas que procuram um scanner para CAD t\u00eam uma planta antiga em papel e querem pass\u00e1-la para CAD. No entanto, um scanner de documentos d\u00e1-lhe apenas uma imagem desse desenho, que ainda ter\u00e1 de redesenhar e depois confirmar no edif\u00edcio. Se a planta for antiga ou a divis\u00e3o tiver sido alterada, medir a pr\u00f3pria divis\u00e3o \u00e9 normalmente mais r\u00e1pido e d\u00e1-lhe as dimens\u00f5es do existente em vez de uma c\u00f3pia da inten\u00e7\u00e3o original.<\/p>\n

      Perguntas frequentes<\/h2>\n

      O DXF abre em qualquer programa CAD?<\/h3>\n

      O DXF \u00e9 o formato de interc\u00e2mbio padr\u00e3o do CAD. Abre no AutoCAD e na maioria dos programas de CAD, BIM e design de interiores, diretamente ou atrav\u00e9s das respetivas ferramentas de importa\u00e7\u00e3o.<\/p>\n

      Preciso de software adicional ou de uma subscri\u00e7\u00e3o?<\/h3>\n

      N\u00e3o. As aplica\u00e7\u00f5es para Android, iOS, Windows e macOS est\u00e3o inclu\u00eddas com o equipamento, sem mensalidade, e os ficheiros ficam no seu pr\u00f3prio telem\u00f3vel.<\/p>\n

      Qual \u00e9 a precis\u00e3o da planta depois de estar em CAD?<\/h3>\n

      O scanner oferece uma precis\u00e3o combinada de \u00b12 mm num raio de 7 m. Como o DXF cont\u00e9m essas posi\u00e7\u00f5es medidas, as dimens\u00f5es que tira em CAD s\u00e3o as dimens\u00f5es da divis\u00e3o.<\/p>\n

      Conclus\u00e3o<\/h2>\n

      Um scanner 2D para CAD substitui a parte mais lenta e menos fi\u00e1vel da elabora\u00e7\u00e3o de uma planta: transformar os n\u00fameros de um esbo\u00e7o em linhas. Consequentemente, a divis\u00e3o entra no seu desenho como geometria medida e o seu tempo \u00e9 dedicado ao projeto e n\u00e3o a redesenhar.<\/p>\n

      Veja como funciona o 2Dscanner EVO<\/a>, compare-o com outros instrumentos de medi\u00e7\u00e3o laser<\/a> ou saiba mais sobre o scanner laser 2D<\/a>. Para obter informa\u00e7\u00f5es pr\u00e1ticas, visite a nossa sec\u00e7\u00e3o de perguntas frequentes<\/a> ou veja as demonstra\u00e7\u00f5es no nosso canal de YouTube<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Da digitaliza\u00e7\u00e3o da divis\u00e3o \u00e0 planta em DXF: o que cont\u00e9m o ficheiro, como abri-lo no AutoCAD \u00e0 escala certa e como desenhar paredes limpas sobre a digitaliza\u00e7\u00e3o.<\/p>\n","protected":false},"author":3,"featured_media":9501,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1711],"tags":[],"class_list":["post-14108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-plantas"],"acf":[],"yoast_head":"\nScanner 2D para CAD: da digitaliza\u00e7\u00e3o ao DXF no AutoCAD - 2Dscanner<\/title>\n<meta name=\"description\" content=\"Como um scanner laser 2D transforma uma divis\u00e3o numa planta DXF: o que cont\u00e9m o ficheiro, como abri-lo no AutoCAD \u00e0 escala certa e desenhar paredes limpas.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/2dscanner.com\/pt-pt\/blog\/scanner-2d-para-cad-dxf\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scanner 2D para CAD: da digitaliza\u00e7\u00e3o da divis\u00e3o \u00e0 planta em DXF\" \/>\n<meta property=\"og:description\" content=\"Como um scanner laser 2D transforma uma divis\u00e3o numa planta DXF: o que cont\u00e9m o ficheiro, como abri-lo no AutoCAD \u00e0 escala certa e desenhar paredes limpas.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/2dscanner.com\/pt-pt\/blog\/scanner-2d-para-cad-dxf\/\" \/>\n<meta property=\"og:site_name\" content=\"2Dscanner\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/2dscanner\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-13T23:20:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-07T23:43:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/2dscanner.com\/wp-content\/uploads\/2026\/10\/\u039c\u03b5\u03c4\u03b1\u03c4\u03c1\u03bf\u03c0\u03ae-\u03a3\u03ba\u03af\u03c4\u03c3\u03bf\u03c5-\u03c3\u03b5-\u03a3\u03c7\u03ad\u03b4\u03b9\u03bf-CAD.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1672\" \/>\n\t<meta property=\"og:image:height\" content=\"941\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Dimitris Papachastas\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dimitris Papachastas\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/\"},\"author\":{\"name\":\"Dimitris Papachastas\",\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/#\\\/schema\\\/person\\\/d47530cd8e57d8aa2298a686f4ae0c83\"},\"headline\":\"Scanner 2D para CAD: da digitaliza\u00e7\u00e3o da divis\u00e3o \u00e0 planta em DXF\",\"datePublished\":\"2026-10-13T23:20:47+00:00\",\"dateModified\":\"2026-11-07T23:43:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/\"},\"wordCount\":1764,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/2dscanner.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/\u039c\u03b5\u03c4\u03b1\u03c4\u03c1\u03bf\u03c0\u03ae-\u03a3\u03ba\u03af\u03c4\u03c3\u03bf\u03c5-\u03c3\u03b5-\u03a3\u03c7\u03ad\u03b4\u03b9\u03bf-CAD.jpg\",\"articleSection\":[\"Plantas\"],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/\",\"url\":\"https:\\\/\\\/2dscanner.com\\\/pt-pt\\\/blog\\\/scanner-2d-para-cad-dxf\\\/\",\"name\":\"Scanner 2D para CAD: da digitaliza\u00e7\u00e3o ao DXF no AutoCAD - 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