Pur usando il raschietto, il ceramista lascia una piccola impronta.

Here pur means although, even though, or despite.

So:

• Pur usando il raschietto = Although he is using the scraper / Despite using the scraper

This is a fairly formal or literary way to express concession in Italian.

A more everyday way to say something similar would be:

• Anche usando il raschietto...
• Sebbene usi il raschietto...
• Nonostante usi il raschietto...

So pur is not very common in casual spoken Italian, but it is absolutely correct.

Because after pur, Italian often uses the gerund to express although doing something.

• usare = infinitive, to use
• usando = gerund, using

So:

• pur usando = although using / even while using

This is a fixed and natural pattern in Italian:

• Pur sapendo la verità, non disse nulla.
  Although knowing the truth, he said nothing.
• Pur avendo studiato, era nervoso.
  Even though he had studied, he was nervous.

So pur + gerund is a standard structure.

The subject of usando is understood to be the same subject as the main verb, unless context clearly says otherwise.

In this sentence:

• Pur usando il raschietto, il ceramista lascia una piccola impronta.

the implied subject of usando is il ceramista.

So the meaning is:

• Although the ceramist is using the scraper, he leaves a small mark.

This is important because Italian gerunds usually refer to the same subject as the main clause.

Normally, no. Italian readers will assume that the ceramist is the one using the scraper, because the gerund usando usually shares its subject with the main clause.

If you wanted to make it clear that someone else was using the scraper, you would normally need a different structure, for example:

• Sebbene un altro usi il raschietto, il ceramista lascia una piccola impronta.

That sounds a bit unusual in meaning, but grammatically it makes the subject different.

So in your sentence, the natural reading is:

• the ceramist is using the scraper

Il raschietto means the scraper.

Italian often uses the definite article where English might use:

• the
• a
• or sometimes no article at all

Here il raschietto can sound natural even if English might say using a scraper.

The article helps present the tool as the relevant instrument in the situation. Italian often prefers this.

Compare:

• usa il coltello = he uses a knife / the knife
• scrive con la penna = he writes with a pen

So il raschietto does not necessarily mean one very specific scraper already known to the listener; it can simply be the tool being used in the scene.

In Italian, professions and roles often take the definite article when they are the subject of a sentence.

So:

• Il ceramista lascia una piccola impronta.
• literally: The ceramist leaves a small mark.

English often says:

• The ceramist
• or just uses a name or pronoun

Italian commonly uses article + noun in this kind of sentence.

Without the article, ceramista would usually not sound right here.

Lascia is the third-person singular present of lasciare.

Lasciare has several meanings, including:

• to leave
• to let
• to leave behind
• to cause/remain as a trace

In this sentence, it means something like:

• leaves
• leaves behind
• produces

So:

• lascia una piccola impronta = leaves a small mark/impression

It does not mean lets here.

This is just the normal noun phrase:

• una = a
• piccola = small
• impronta = mark / imprint / impression

Italian adjectives often come after the noun, but some very common adjectives, including piccolo, often come before it:

• una piccola impronta
• un grande errore
• un bel lavoro

So piccola impronta is completely natural.

Impronta can mean several related things:

• imprint
• impression
• mark
• trace
• sometimes fingerprint

In this sentence, because we are talking about a ceramist and a scraper, impronta most likely means:

• a small mark
• a small impression left on the clay

So it is probably not specifically a fingerprint, unless the context says so.

That opening phrase sets up a contrast right away.

The structure is:

• Although using the scraper, ...
• Despite using the scraper, ...

By placing it first, the sentence emphasizes the unexpected result:

• even with the scraper, the ceramist still leaves a mark

This is very natural in Italian. You could move it later, but the emphasis would change.

For example:

• Il ceramista lascia una piccola impronta pur usando il raschietto.

This is also grammatical, but the original version sounds more elegant and highlights the concession better.

The contrast is introduced by pur.

It suggests that using the scraper would normally help avoid marks, but in spite of that, a mark is still left.

So the logic is:

• Expected: if he uses the scraper, the surface should be smooth
• Actual: he still leaves a small imprint

That is why pur works well here: it introduces an unexpected outcome.

It is correct Italian, but it sounds a bit formal, written, or literary because of pur + gerund.

In more everyday speech, Italians might say something like:

• Anche usando il raschietto, il ceramista lascia una piccola impronta.
• Nonostante usi il raschietto, il ceramista lascia una piccola impronta.

So the original sentence is natural, but not the most casual possible version.

No. Even though pur and pure are related historically, in modern Italian they are not always interchangeable.

Here you need pur, not pure:

• Pur usando il raschietto... = correct

If you used pure, it would usually mean something else, often closer to:

• also
• too
• or in some contexts go ahead

So in this sentence, treat pur as a separate word meaning although / even though in a formal structure.

Lascia is present indicative, third-person singular, from lasciare.

• io lascio
• tu lasci
• lui/lei lascia

The sentence uses the present tense because it is describing an action or process as a general fact or a scene:

• the ceramist leaves a small mark

This could describe:

• something happening right now
• a habitual action
• a step in a process being narrated

So the present tense is perfectly normal here.

Yes, in many contexts you could, but the nuance changes slightly.

• Pur usando il raschietto... = Although / despite using the scraper...
• Anche usando il raschietto... = Even using the scraper...

Both can express concession, but:

• pur usando sounds more formal and explicitly concessive
• anche usando sounds a bit more conversational

So they are often similar in meaning here, but not identical in tone.

Yes, absolutely.

Italian often omits subjects when they are clear from the verb or the structure. In this case:

• the main clause has the subject: il ceramista
• the gerund phrase naturally refers back to that same subject

So the sentence is fully complete and natural:

• Pur usando il raschietto, il ceramista lascia una piccola impronta.

There is no need to add a pronoun like egli or lui.